bluuebunny/crossref_metadata_2025 huggingface dataset:
Metallic Cobalt Nanoparticles Encapsulated in Nitrogen‐Enriched Graphene Shells: Its Bifunctional Electrocatalysis and Application in Zinc–Air Batteries
Authors: Zeng Min , Liu Yiling , Zhao Feipeng , Nie Kaiqi , Han Na , Wang Xinxia , Huang Wenjing , Song Xuening , Zhong Jun , Li Yanguang
Published: April 2016

There has been a continuous call for active, durable, and low‐cost electrocatalysts for a range of energy applications. Among many different nonprecious metal based candidates, transition metal nanoparticles encapsulated in graphene layers have gained increasing attention over recent years. In this study, it is demonstrated that metallic cobalt nanoparticles sheathed by multilayered nitrogen‐enriched graphene shells can be facilely prepared using cobalt‐containing Prussian blue colloids as the single precursor. These metallic cobalt cores can be readily leached out by HCl treatment, resulting in hollow graphene spheres. Products with or without acid leaching exhibit great bifunctional activities for electrocatalytic oxygen reduction and hydrogen evolution in both alkaline and acidic electrolytes. Most importantly, it is found that the removal of the metallic cores does not deteriorate but rather enhances the electrocatalytic performance. Based on this and other experimental observations, Co‐N‐C moieties are proposed as the catalytically active sites. At last, it is shown that these catalysts can be employed as the air catalyst of primary zinc–air batteries with excellent current density, power density, and operation durability.
Hybrid Polycaprolactone/Alginate Scaffolds Functionalized with VEGF to Promote de Novo Vessel Formation for the Transplantation of Islets of Langerhans
Authors: Marchioli Giulia , Luca Andrea Di , de Koning Eelco , Engelse Marten , Van Blitterswijk Clemens A. , Karperien Marcel , Van Apeldoorn Aart A. , Moroni Lorenzo
Published: April 2016

Although regarded as a promising treatment for type 1 diabetes, clinical islet transplantation in the portal vein is still hindered by a low transplantation outcome. Alternative transplantation sites have been proposed, but the survival of extra‐hepatically transplanted islets of Langerhans critically depends on quick revascularization after engraftment. This study aims at developing a new 3D scaffold platform that can actively boost vascularization and may find an application for extra‐hepatic islet transplantation. The construct consists of a 3D ring‐shaped polycaprolactone (PCL) scaffold with heparinized surface to electrostatically bind vascular endothelial growth factor (VEGF), surrounding a hydrogel core for islets encapsulation. Heparin immobilization improves the amount of VEGF retained by the construct, up to 3.6 fold, compared to untreated PCL scaffolds. In a chicken chorioallanthoic membrane model, VEGF immobilized on the construct enhances angiogenesis in close proximity and on the surface of the scaffolds. After 7 days, islets encapsulated in the alginate core show functional response to glucose stimuli comparable to free‐floating islets. Thus, the developed platform has the potential to support rapid vascularization and islet endocrine function.
Rhodium‐Catalyzed [2+2+2] Cycloadditions of Diynes with Morita–Baylis–Hillman Adducts: A Stereoselective Entry to Densely Functionalized Cyclohexadiene Scaffolds
Authors: Fernández Martí , Parera Magda , Parella Teodor , Lledó Agustí , Le Bras Jean , Muzart Jacques , Pla‐Quintana Anna , Roglans Anna
Published: April 2016

A rhodium‐catalyzed asymmetric synthesis of 5,5‐disubstituted cyclohexa‐1,3‐dienes has been achieved by [2+2+2] cycloaddition reactions between diynes and Morita–Baylis–Hillman (M‐B‐H) adducts as unsaturated substrates. Products containing two adjacent chiral centres (quaternary and tertiary, respectively) were obtained with complete diastereoselectivity and high enantioselectivity (84–97%) through a kinetic resolution of the M‐B‐H adduct. Furthermore, these highly substituted cyclohexadienes reacted with dienophiles to afford the corresponding Diels–Alder cycloadducts in good yields.

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Copper‐Catalyzed C−N Bond Formation via Oxidative Cross‐Coupling of Amines with α‐Aminocarbonyl Compounds
Authors: Liu Xing‐Xing , Wu Zhao‐Yang , He Yong‐Qin , Zhou Xiao‐Qiang , Hu Ting , Ma Chao‐Wei , Huang Guo‐Sheng
Published: April 2016

A novel and selective method for the simple copper‐catalyzed α‐amination of α‐aminocarbonyl compounds to afford 2‐amino‐2‐iminocarbonyl and 2‐amino‐2‐oxocarbonyl compounds is reported. This transformation is achieved by C(sp3)−H and N−H bond oxidative cross‐coupling and selective C−N bond oxidative cleavage. This reaction system has a broad reaction scope, providing a facile pathway for the α‐functionalization of α‐amino ketones.

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One‐Pot Synthesis of 4‐Heteroaryl‐Substituted Pyrazoles: A Gold‐Catalyzed Oxidation/1,2‐Heteroaryl Migration Cascade Constitutes the Key Step
Authors: Yao Xinbo , Wang Tao , Zhang Xi , Wang Ping , Zhang Bing , Wei Junfa , Zhang Zunting
Published: April 2016

An efficient gold‐catalyzed oxidation/1,2‐ heteroaryl migration cascade leading to 2‐heteroaryl‐substituted 1,3‐diketones and its further application in the one‐pot synthesis of 4‐heteroaryl‐substituted pyrazoles and the preparation of 4‐heteroaryl‐substituted isoxazoles are reported. A wide variety of 4‐heteroaryl‐substituted pyrazoles were obtained, indicating the broad substrate scope and functional group tolerance of this method.

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Flexible Poly(Amide‐Imide)‐Carbon Black Based Microheater with High‐Temperature Capability and an Extremely Low Temperature Coefficient
Authors: Liparoti Sara , Landi Giovanni , Sorrentino Andrea , Speranza Vito , Cakmak Mukerrrem , Neitzert Heinz Christoph
Published: April 2016

Flexible poly(amide‐imide)‐carbon black (PAI‐CB) composite films, to be applied as high performance microheater foil, have been prepared with a solution/casting technique. The CB dispersion has been carefully controlled in order to improve the thermal and electrical properties of the resulting composites. Morphology and structure of the PAI‐CB composite films have been characterized by optical microscopy, atomic force microscopy and FTIR spectroscopy. The effect of the CB dispersion and its interaction with the polymer chains on the thermal and mechanical properties of the composite films have been investigated by using differential scanning calorimetry thermogravimetric analysis and dynamic mechanical analysis. The electrical characterization has evidenced high‐temperature capability and an extremely low temperature coefficient of the electrical resistance. An excellent ohmic behavior of the electrical characteristics and a fast on/off‐switching of the heater‐foil have also been found. No mechanical and electrical changes of the polymeric heater have been observed after various mechanical bending cycles. The combination of the observed electrical and thermal properties allows the realization of stable, compact, and flexible electrical heating systems.
Oxygen Degradation in Mesoporous Al2O3/CH3NH3PbI3‐xClx Perovskite Solar Cells: Kinetics and Mechanisms
Authors: Pearson Andrew J. , Eperon Giles E. , Hopkinson Paul E. , Habisreutinger Severin N. , Wang Jacob Tse‐Wei , Snaith Henry J. , Greenham Neil C.
Published: April 2016

The rapid pace of development for hybrid perovskite photovoltaics has recently resulted in promising figures of merit being obtained with regard to device stability. Rather than relying upon expensive barrier materials, realizing market‐competitive lifetimes is likely to require the development of intrinsically stable devices, and to this end accelerated aging tests can help identify degradation mechanisms that arise over the long term. Here, oxygen‐induced degradation of archetypal perovskite solar cells under operation is observed, even in dry conditions. With prolonged aging, this process ultimately drives decomposition of the perovskite. It is deduced that this is related to charge build‐up in the perovskite layer, and it is shown that by efficiently extracting charge this degradation can be mitigated. The results confirm the importance of high charge‐extraction efficiency in maximizing the tolerance of perovskite solar cells to oxygen.
Opposite‐sex social bonding in wild Assamese macaques
Authors: Haunhorst Christine B. , Schülke Oliver , Ostner Julia
Published: April 2016

In large multimale–multifemale primate groups, individual adult males and females may form close social relationships that extend beyond the mating context, a surprising finding for polygynandrous mammals. The patterns of these associations can be relatively stable across time. Here we investigate whether dyadic social relationships between the sexes transcend mere association in wild Assamese macaques and may be characterized as strong, equitable, and stable affiliative relationships or social bonds. We collected >9,000 hr of focal animal data on adult males and females from two groups of wild Assamese macaques (Macaca assamensis) at Phu Khieo Wildlife Sanctuary, Thailand. Using dyadic composite sociality indices, we found male–female affiliative relationships to be highly differentiated. The stronger the relationships were, the more likely partners were to reciprocate grooming and the more stable were the relationships. In addition, the strongest dyadic relationships remained stable over multiple years as long as both partners remained in the group. These results indicate that in a polygynous species particular males and females form strong, equitable, and enduring affiliative relationships qualitatively similar to the same‐sex bonds described for female baboons and male chimpanzees. Am. J. Primatol. 78:872–882, 2016. © 2016 Wiley Periodicals, Inc.
Three‐Way‐Switchable (Right/Left/OFF) Selective Reflection of Circularly Polarized Light on Solid Thin Films of Helical Polymer Blends
Authors: Nagata Yuuya , Uno Makoto , Suginome Michinori
Published: April 2016

Two poly(quinoxaline‐2,3‐diyl) copolymers bearing miscibility‐enhancing 8‐chlorooctyloxy and (S)‐2‐methylbutoxy or n‐butoxy side chains were synthesized. After annealing in CHCl3 vapor, a polymer‐blend film of these copolymers exhibited selective reflection of right‐handed circularly polarized light (CPL) in the visible region. The handedness of the CPL reflected was completely inverted upon annealing of the film in THF vapor. Annealing in n‐hexane vapor resulted in the phase separation of the polymer blend, which turned the selective reflection off. This three‐way‐switchable reflection, that is, reflection of right‐handed or left‐handed CPL, together with an OFF state, could be observed visually through right‐ and left‐handed CPL filters.
What We Can Really Do with Bioresponsive MRI Contrast Agents
Authors: Angelovski Goran
Published: April 2016

Bioresponsive MRI contrast agents hold great promise for monitoring major physiological and pathological processes in a non‐invasive manner. They are capable of altering the acquired MRI signal as a consequence of changes in their microenvironment, thus allowing real‐time functional reporting in living organisms. Importantly, chemistry offers diverse solutions for the design of agents which respond to a great number of specific targets. However, the path to the successful utilization of these biomarkers in the desired functional MRI studies involves careful consideration of multiple scientific, technical, and practical issues across various research disciplines. This Minireview highlights the critical steps for planning and executing such multidisciplinary projects with an aim to substantially improve our knowledge of essential biological processes.
Control of Julia Sets in Generalized Alternated System
Authors: Wang Pei , Liu Shutang
Published: April 2016

In this paper, we first introduce the generalized alternated system. The definition of the Julia set in the generalized alternated system is given, which is called a generalized alternated Julia set. Then, we achieve the control of generalized alternated Julia sets by applying the classic control methods, which are gradient control and optimal control. In addition, the synchronization between two different generalized alternated Julia sets is implemented using gradient control and optimal control. The simulations illustrate the effectiveness and correctness of these two control methods, and the results are displayed in 2D computer graphics.
The times they are a‐changing: Making the transition toward a sustainable economy
Authors: Morone Piergiuseppe
Published: April 2016

Significant changes are ahead of us: most notably, the world's population is projected to increase by almost one billion people within the next decade and the global middle class is expected to nearly triple by 2030. These trends add pressure to the world economic system and environment: greenhouse gas emissions keep growing at global scale, materials and energy sources are fast approaching their physical limits, and the amount of waste produced under the current system seems to be reaching a new peak. Against this background, a transition from a society heavily based on mass consumption, uncontrolled waste generation, and heavy fossil‐fuels exploitation toward one based on resource‐efficiency, new production and consumption behaviours, waste reduction, reuse, and valorization, seems a desirable and much‐needed feat. This change involves a paradigm shift, which goes beyond technological change – it involves big societal and institutional changes as much as the development of radically new technologies and would give rise, in a long‐term perspective, to the beginning of a new long wave of sustained (and sustainable) growth. © 2016 Society of Chemical Industry and John Wiley & Sons, Ltd
Impact of elective termination on the occurrence of severe birth defects identified in a hospital‐based active malformations surveillance program (1999 to 2002)
Authors: Thomas Emma G. , Toufaily M. Hassan , Westgate Marie‐Noel , Hunt Anne‐Therese , Lin Angela E. , Holmes Lewis B.
Published: April 2016

Background

The number of affected infants and the types of malformations identified by a malformation surveillance programs can be impacted if elective terminations for malformations are not included.

Methods

The occurrence of malformations in all newborn infants was determined in a daily review of the findings in the pediatricians' examinations and those of all consultants. In addition, the findings in autopsies of all elective terminations were reviewed to identify all fetuses with structural abnormalities. A severity scale was used to subdivide the malformations. To establish the impact of elective termination, the malformed infants identified in the Active Malformations Surveillance Program at Brigham and Women's Hospital in Boston were analyzed for the 2 years before and after the hospital decreased significantly the number of elective terminations temporarily (1999–2000 vs. 2001–2002). The effect on the number of malformations identified at birth, as well as malformations of greater severity, was determined.

Results

The number of terminated fetuses with malformations decreased dramatically after termination services were interrupted (p < 0.0001). There were no differences in the prevalence rates of all malformations in the 2 years before and after the change in access to elective terminations. However, there were significant decreases in the number of infants identified with lethal/life‐limiting and severe/handicapping malformations.

Conclusion

In the surveillance for malformations among newborn infants, the inclusion of malformed fetuses from elective terminations had a significant effect on the number of infants with the more severe malformations identified. Birth Defects Research (Part A) 106:659–666, 2016. © 2016 Wiley Periodicals, Inc.
Time‐dependent classification accuracy curve under marker‐dependent sampling
Authors: Zhu Zhaoyin , Wang Xiaofei , Saha‐Chaudhuri Paramita , Kosinski Andrzej S. , George Stephen L.
Published: April 2016

Evaluating the classification accuracy of a candidate biomarker signaling the onset of disease or disease status is essential for medical decision making. A good biomarker would accurately identify the patients who are likely to progress or die at a particular time in the future or who are in urgent need for active treatments. To assess the performance of a candidate biomarker, the receiver operating characteristic (ROC) curve and the area under the ROC curve (AUC) are commonly used. In many cases, the standard simple random sampling (SRS) design used for biomarker validation studies is costly and inefficient. In order to improve the efficiency and reduce the cost of biomarker validation, marker‐dependent sampling (MDS) may be used. In a MDS design, the selection of patients to assess true survival time is dependent on the result of a biomarker assay. In this article, we introduce a nonparametric estimator for time‐dependent AUC under a MDS design. The consistency and the asymptotic normality of the proposed estimator is established. Simulation shows the unbiasedness of the proposed estimator and a significant efficiency gain of the MDS design over the SRS design.
Over‐expression of fHbp in Arabdopsis for development of meningococcal serogroup B subunit vaccine
Authors: Xu Nuo , Wang Yunpeng , Ma Jisheng , Jin Libo , Xing Shaochen , Jiang Chao , Li Xiaokun
Published: April 2016

Due to lack of commercial vaccine against the serogroup B (MenB) of Neisseria meningitides, the incidence of meningococcal disease remains high. To solve the issue, transgenic plants are used as bioreactors to produce a plant‐derived fHbp subunit vaccine. In this study, the fHbp gene was optimized according to the codon usage bias of Arabidopsis thaliana, synthesized artificially, cloned into an expression vector, driven by a seed‐specific promoter, and introduced into A. thaliana by Agrobacterium‐mediated floral‐dip transformation. Transgenic plants were identified by glufosinate selection, quickstix strips for PAT/bar tests and PCR analysis. The five plants showing higher expression of recombinant fHbp were screened through indirect ELISA. Southern blot analysis showed that the transgenic line rHF‐22 had a single‐copy integration and the highest expression of fHbp. Recombinant fHbp was purified from seeds of rHF‐22 by nitrilotriacetic acid‐mediated affinity chromatography, and the purity was 82.5%. BALB/c mice were tested for fHbp vaccine protection from lethal MenB infection, and the relative percent survival was found to be 80%. This study indicates that the recombinant fHbp produced from seeds of rHF‐22 is a potential candidate for commercial MenB vaccine. It also provides a reference for safe, cheap and large‐scale production of other plant‐made vaccines.
Influence of precipitating agents on thermodynamic parameters of protein crystallization solutions
Authors: Stavros Philemon , Saridakis Emmanuel , Nounesis George
Published: April 2016

X‐ray crystallography is the most powerful method for determining three‐dimensional structures of proteins to (near‐)atomic resolution, but protein crystallization is a poorly explained and often intractable phenomenon. Differential Scanning Calorimetry was used to measure the thermodynamic parameters (ΔG, ΔH, ΔS) of temperature‐driven unfolding of two globular proteins, lysozyme, and ribonuclease A, in various salt solutions. The mixtures were categorized into those that were conducive to crystallization of the protein and those that were not. It was found that even fairly low salt concentrations had very large effects on thermodynamic parameters. High concentrations of salts conducive to crystallization stabilized the native folded forms of proteins, whereas high concentrations of salts that did not crystallize them tended to destabilize them. Considering the ΔH and TΔS contributions to the ΔG of unfolding separately, high concentrations of crystallizing salts were found to enthalpically stabilize and entropically destabilize the protein, and vice‐versa for the noncrystallizing salts. These observations suggest an explanation, in terms of protein stability and entropy of hydration, of why some salts are good crystallization agents for a given protein and others are not. This in turn provides theoretical insight into the process of protein crystallization, suggesting ways of predicting and controlling it. © 2016 Wiley Periodicals, Inc. Biopolymers 105: 642–652, 2016.
Review: Mechanochemistry of the kinesin‐1 ATPase
Authors: Cross R. A.
Published: April 2016

Kinesins are P‐loop NTPases that can do mechanical work. Like small G‐proteins, to which they are related, kinesins execute a program of active site conformational changes that cleaves the terminal phosphate from an NTP substrate. But unlike small G‐proteins, kinesins can amplify and harness these conformational changes in order to exert force. In this short review I summarize current ideas about how the kinesin active site works and outline how the active site chemistry is coupled to the larger‐scale structural cycle of the kinesin motor domain. Focusing largely on kinesin‐1, the best‐studied kinesin, I discuss how the active site switch machinery of kinesin cycles between three distinct states, how docking of the neck linker stabilizes two of these states, and how tension‐sensitive and position‐sensitive neck linker docking may modulate both the hydrolysis step of ATP turnover and the trapping of product ADP in the active site. © 2016 Wiley Periodicals, Inc. Biopolymers 105: 476–482, 2016.
Getting to Know You: Familiarity, Stereotypes, and Children's Eyewitness Memory
Authors: Cordón Ingrid M. , Silberkleit Gent , Goodman Gail S.
Published: April 2016

The present study concerned how the acquisition of social information, specifically knowledge about personal characteristics, influences young children's memory and suggestibility. Effects of two sources of knowledge about a target person were systematically examined: familiarity and stereotypes. Children, aged 4–5 and 7–9 years (N = 145), were randomly assigned, per age group, to experimental conditions based on a familiarity (6 hours vs. no prior exposure) × stereotype (negative depiction as messy and clumsy vs. no stereotype) factorial design. Children then watched the target person engage in a target event (a series of contests) at a preschool (“Camp Ingrid”). The children's memory and suggestibility about the target person and target event were tested after a delay of 2 weeks. Results indicated that the negative stereotype resulted in an increase in children's correct responses both to free‐recall stereotype‐related questions (when children were unfamiliar with the target person) and to closed‐ended questions overall (for younger children). However, the stereotype was associated with greater error to stereotype‐related closed‐ended questions. Moreover, familiarity increased children's accuracy to closed‐ended questions. Implications for theory and application are discussed. Copyright © 2016 John Wiley & Sons, Ltd.
Faculty supporting and developing a CBE program – strategies implemented at the University of Mary Hardin‐Baylor
Authors: Cooper Tammi R.
Published: April 2016

Faculty play key roles in developing and supporting academic programs. For traditional modes of delivery, the ways faculty support and develop academic offerings are well‐defined and understood. However, for new modes of delivery like CBE, successful faculty support will only occur through the use of intentional strategies aimed at inspiring support and encouraging lasting involvement. This article examines how campus leaders at the University of Mary Hardin‐Baylor engaged traditional faculty members during the development of a fully online undergraduate competency‐based program. Strategies used to initially garner faculty support, to provide new leadership opportunities to faculty, and to systematically involve faculty throughout the curriculum development process and beyond are presented.
Proximity Effect using a Nanocage Structure: Polyhedral Oligomeric Silsesquioxane‐Imidazolium Tetrachloro‐ palladate Salt as a Precatalyst for the Suzuki–Miyaura Reaction in Water
Authors: Bivona Lucia Anna , Giacalone Francesco , Carbonell Esther , Gruttadauria Michelangelo , Aprile Carmela
Published: April 2016

A polyhedral oligomeric silsesquioxane‐imidazolium tetrachloropalladate salt (POSS‐Imi‐PdCl4) was prepared by the reaction of a polyhedral oligomeric silsesquioxane‐imidazolium chloride salt (POSS‐Imi‐Cl) with PdCl2 and used as a pre‐catalyst for the Suzuki–Miyaura reaction in water at 100 °C at a low loading (0.08–0.16 mol %). Biphenyl compounds were isolated in high to excellent yields. A comparison of the POSS‐based catalyst with the corresponding catalyst without the nanocage structure (i.e., 1‐butyl‐3‐methylimidazolium tetrachloropalladate) highlighted the role of the POSS structure to reach higher yields in the Suzuki–Miyaura reaction. This result is ascribed to a proximity effect of the imidazolium moieties linked to the nanocage structure. Fresh and used catalytic materials were characterised by using X‐ray photoelectron spectroscopy and TEM.
ChemInform Abstract: CRYSTAL CHEMISTRY OF OXOPLUMBATES(II). I. LEAD ALUMINUM OXIDE (PB9AL8O21)
Authors: PLOETZ K.‐B. + , MUELLER‐BUSCHBAUM HK. +
Published: April 2016

, eine bislang unbekannte Verbindung, bildet sich aus einer Schmelze von 90 mol‐% PbO und 10 mol% Al2O3 bei 850‐950 °C (72 h) in einkristalliner Form.
ChemInform Abstract: THE MAGNETIC SUSCEPTIBILITY OF EUROPIUM RUTHENIUM HYDRIDE (EU2RUH6) BELOW 77 K
Authors: LINDSAY R. , MOYER R. O. JUN.
Published: April 2016

Messungen der magnetischen Suszeptibilität von Eu2RuH6 bei Temp. bis herab auf 7 Kwerdenals Bestätigung für ferromagnetisches Verhalten (Curie‐Temp.
ChemInform Abstract: KINETICS OF HYDROGEN ABSORPTION OF TANTALUM COATED WITH THIN FILMS OF PALLADIUM, IRON, NICKEL, COPPER AND SILVER
Authors: NAKAMURA K. , UCHIDA H. , FROMM E.
Published: April 2016

Dünne Pd‐Beschichtungen haben den größten Einfluß auf die Kinetik der H‐Atomabsorption durch Ta‐Drähte im Temperaturbereich 300‐700 K und führen zu Absorptionsgeschwindigkeiten, die nahe an den theoretischen Wert für einen diffusionsbestimmten Reaktionsmechanismus heranreichen.
ChemInform Abstract: NITROSYLTETRACHLORO(DICHLOROPHOSPHATO)MOLYBDATE(II); PREPARATION, IR SPECTRUM AND CRYSTAL STRUCTURE OF (ASPH4)2(MO(NO)CL4(O2PCL2))
Authors: LIEBELT A. , WELLER F. , DEHNICKE K.
Published: April 2016

Die gemäß Reaktion Adargestellte Titelverbindung kristallisiert in der Raumgruppe Pl mit Z=2.
ChemInform Abstract: CHIRAL DISCRIMINATION IN FLUORESCENCE QUENCHING
Authors: YOROZU T. , HAYASHI K. , IRIE M.
Published: April 2016

Für die Löschung der (R)‐(‐)‐ 1,1 ′‐Binaphthyl‐Fluoreszenz in Hexan durch (S)‐(‐)‐ oder (R)‐(+)‐N,N‐Dimethyl‐1‐phenyl‐ethylamin, bzw. ‐2‐methyl‐ oder ‐2,2‐dimethylpropylamin ergeben sich unterschiedliche Geschwindigkeitskonstanten, je nachdem ob diese mit dem (S)‐(‐)‐ oder (R)‐(+)‐ Amin durchgeführt wird.
ChemInform Abstract: EFFICIENT CONVERSION OF OLEFINS INTO EPOXIDES, BROMOHYDRINS, AND DIBROMIDES WITH SODIUM BROMIDE IN WATER‐ORGANIC SOLVENT ELECTROLYSIS SYSTEMS
Authors: TORII S. , UNEYAMA K. , TANAKA H. , YAMANAKA T. , YASUDA T. , ONO M. , KOHMOTO Y.
Published: April 2016

Cyclohexen‐dicarbonsäuremethylester (II) wird in Gegenwart von Natriumbromid in Acetonitril‐Wasser‐ Gemischen als Lösungsmittel, ggf. unter Zusatz von (Schwefel) Säure der Elektrolyse unterworfen wobei je nach den Bedingungen das Epoxid (I), die Bromhydrine (III) oder die stereoisomeren Dibromide (IV) erhalten werden.
ChemInform Abstract: PRESSURE‐INDUCED SYNTHESIS OF AN N‐SULFONYL‐1H‐AZEPINE BY SULFONYL‐NITRENE INSERTION INTO BENZENE
Authors: AYYANGAR N. R. , BAMBAL R. B. , LUGADE A. G.
Published: April 2016

Die Thermolyse des Tosylazids (I) in überschüssigem Benzol und unter Stickstoff ergibt die Verbindungen (II)‐(IV), wobei die Ausbeute des Azepins (II) mit steigendem Stickstoffdruck wächst.
ChemInform Abstract: EFFECT OF THE NATURE OF A SOLVENT ON THE RATE AND MECHANISM OF CATALYTIC HYDROGENATION OF DIFURFURYLIDENEACETONE
Authors: MAT'YAKUBOV R. , MAMATOV YU. M.
Published: April 2016

Die Hydrierung von Difurfurylidenaceton (I) über einem Ni‐Ti‐Al‐Skelettkatalysator liefert bei Atmosphärendruck in aprotischen und protischen Lösungsmitteln nichtselektiv Gemische der verschiedenen Hydrierungsstufen.
ChemInform Abstract: ROOM TEMPERATURE FLUORINATION OF ALKENES WITH CESIUM FLUOROXYSULFATE
Authors: STAVBER S. , ZUPAN M.
Published: April 2016

Diphenylethylen (I) wird durch Cäsiumfluoroxysulfat (II) zur Verbindung (III) fluoriert.
ChemInform Abstract: HETEROATOMIC AZIRIDINE DERIVATIVES. 12. REACTION OF 1‐(CARBOMETHOXYALKYL)AZIRIDINES WITH THIOLS AND MERCAPTO ACIDS
Authors: VORONKOV M. G. , KNUTOV V. I.
Published: April 2016

Die Reaktion der Aziridine (I) mit Thiolen und Mercaptocarbonsäuren (II) erfolgt unter Ringöffnung.
ChemInform Abstract: CLEAVAGE OF ARYL‐TIN BONDS WITH ELEMENTAL FLUORIDE: RAPID SYNTHESIS OF FLUOROBENZENE‐18F
Authors: ADAM M. J. , PATE B. D. , RUTH T. J. , BERRY J. M. , HALL L. D.
Published: April 2016

Die Organo‐Zinnverbindungen (I) reagieren mit Fluor in Trichlorfluormethan bei ‐78°C oder in Tetrachlormethan bei 0°C zu Fluorbenzol (II).
ChemInform Abstract: ASSIGNMENT OF REGIOCHEMISTRY TO SUBSTITUTED NAPHTHOQUINONES BY CHEMICAL AND SPECTROSCOPIC METHOD; AMINO‐, HYDROXY‐, AND BROMOJUGLONE DERIVATIVES
Authors: PARKER K. A. , SWORIN M. E.
Published: April 2016

Bei der Reaktion von 5‐Methoxy‐1,4‐naphthochinon (I) mit Natriumazid und Eisessig erhält man die beiden Aminoverbindungen (IIa) und (IIIa), die mit Schwefelsäure zu den Hydroxyverbindungen (IIb) und (IIIb) hydrolysiert werden.
ChemInform Abstract: SYNTHESIS AND REACTIONS OF 5,6,11,12‐TETRAHYDRO‐5,12;6,11‐DIETHENODIBENZO(A,E)CYCLOOCTENE (PP′‐DINAPHTHALENE)
Authors: TOBE Y. , HIRATA F. , NISHIDA K. , FUJITA H. , KIMURA K. , ODAIRA Y.
Published: April 2016

Die Käfigverbindung (Ia) wird über (Ib) und (Ic) in die Verbindung (Id) umgewandelt, die einen Rhodium‐Komplex (II) bildet.
ChemInform Abstract: POTENTIAL BIOLOGICALLY ACTIVE AGENTS. PART XVIII. SYNTHESIS OF 3‐BENZOYLHYDRAZONO‐2‐INDOLINONES, 1‐METHYL‐3‐BENZOYLHYDRAZONO‐2‐INDOLINONES AND 1‐MORPHOLINO/PIPERIDINOMETHYL‐3‐BENZOYLHYDRAZONO‐2‐INDOLINONES
Authors: VARMA R. S. , KHAN I. A.
Published: April 2016

Die Benzoylhydrazonoindolinone (III) und (V) zeigen keine cysticide Wirkung.
ChemInform Abstract: STUDIES ON THE ORGANOGALLYLPYRAZOLE SERIES. II. SUBSTITUTION REACTIONS ON ALKYL HALIDES AND ACID CHLORIDES
Authors: BOYER D. , GASSEND R. , MAIRE J. C. , ELGUERO J.
Published: April 2016

1‐Dimethylgallylpyrazol (I) reagiert mit den Alkylhalogeniden (II) nach einem SN2‐Mechanismus zu den N‐Alkylpyrazolen (III) und mit den Säurechloriden (IV) zu den N‐Acylpyrazolen (V).
ChemInform Abstract: PYRAZOLES. XVIII. SYNTHESIS OF A NOVEL TRIPYRAZOLYL BY TWO CONSECUTIVE CINE SUBSTITUTION REACTIONS
Authors: BERBEE R. P. M. , HABRAKEN C. L.
Published: April 2016

Bei der Nitrierung des Nitropyrazolyl‐pyrazols (I) mit in situ erzeugtem Acetylnitrat entstehen die N‐substituierten Nitro‐Verbindungen (IIa) und (IIb), die zu der auch mit Mischsäure aus (I) gebildeten Dinitroverbindung (III) hydrolysiert werden können.
ChemInform Abstract: REACTIVITY OF 2‐AMINOTHIAZOLE TOWARD 2,4‐DINITROFLUOROBENZENE. PRODUCTS AND STRUCTURES
Authors: FORLANI L. , DE MARIA P. , FORESTI E. , PRADELLA G.
Published: April 2016

Die Reaktion der beiden 2‐Aminothiazole (Ia) und (Ib) mit 2,4‐Dinitrofluorbenzol (II) wird untersucht.
ChemInform Abstract: ISOLATION, IDENTIFICATION, AND SYNTHESIS OF COMPOUNDS COSYNTHESIZED IN THE PREPARATION OF PHENCYCLIDINE
Authors: JONES L. A. , BEAVER R. W. , SCHMOEGER T. L. , ORT J. F. , LEANDER J. D.
Published: April 2016

Phencyclidin (I), ein Analgeticum, entsteht aus dem Nitril (III) nach Grignardreaktion mit Phenylmagnesiumbromid (II).
ChemInform Abstract: REACTIONS OF O‐AMINONITRILES WITH ISOCYANATES. 2. A FACILE SYNTHESIS OF IMIDAZO(1,2‐C)QUINAZOLINE‐2,5‐(3H,6H)DIONE
Authors: PAPADOPOULOS E. P.
Published: April 2016

Anthranilsäurenitril (I) reagiert mit den Isocyanaten (II) zu den Harnstoffen (III), die thermisch oder basisch direkt zu (IV) cyclisiert werden.
ChemInform Abstract: STRUCTURE AND REACTION OF A THIAZOLINO(3,2‐A)PYRIMIDINE CARBINOLAMINE
Authors: CAMPAIGNE E. , FOLTING K. , HUFFMAN J. C. , SELBY T. P.
Published: April 2016

4‐Chloracetessigsäureethylester (II) kondensiert mit dem Amino‐hydroxy‐mercapto‐pyrimidin (I) zu einem Bicyclus (III), dessen Struktur über Röntgen‐Spektren sowie Folgereaktionen sichergestellt wird.
ChemInform Abstract: AZIDOBARBITURATES. PART I. SYNTHESIS OF BARBITURIC ACID DERIVATIVES CONTAINING AN AZIDO GROUP UP IN THE 5TH POSITION
Authors: TOTH GY. , MAKLEIT S.
Published: April 2016

Die Azidobarbiturate (II) werden aus den nach Literaturmethoden erhaltenen Brombarbituraten (I) durch direkte Umsetzung mit NaN3 erhalten.
ChemInform Abstract: AZIDOBARBITURATES. PART II. SYNTHESIS OF BARBITURIC ACID DERIVATIVES CONTAINING AN AZIDO GROUP ON THE SUBSTITUENT
Authors: TOTH GY, , MAKLEIT S.
Published: April 2016

Die Hydroxyethylbarbiturate (I) bzw. (IX) werden mit PBr3 in die Bromethylbarbiturate übergeführt.
ChemInform Abstract: BORON PHOTOCHEMISTRY. XIV. THE DIMESITYLBORYL GROUP AS AN AUXOCHROME IN DYES: : THE SYNTHESIS OF PARA‐SUBSTITUTED DIMESITYLBORYLPHENYLAZONAPHTHOL DYES
Authors: GLOGOWSKI M. E. , WILLIAMS J. L. R.
Published: April 2016

Das auf bekannte Weise hergestellte Borylanilin (I) wird in wasserfreiem Medium mit Isopentylnitrit (II) diazotiert und mit Naphtholen (III) zu den Diazoverbindungen (IVa)‐(IVc) gekuppelt.
ChemInform Abstract: STEREOSELECTIVE CARBONYL‐OLEFINATION VIA ORGANOSILICON COMPOUNDS
Authors: YAMAKADO Y. , ISHIGURO M. , IKEDA N. , YAMAMOTO H.
Published: April 2016

Bei der Umsetzung von (in situ aus entsprechenden Bis‐silylacetylenen gebildeten) Allenen (I) mit Carbonylverbindungen (II), (IV), (VII), (X) zu den Produkten (III), (V) + (VI), (VIII)+(IX) bzw. (XI) + (XII) wird gefunden, daß die höchste Diastereoselektivität [‐+′Z‐Isomere (V), (VIII)] erzielt wird, wenn (I) die tert.‐Butyldimethylsilylgruppe und‐MgBr enthält [d.h.
ChemInform Abstract: SYNTHESIS AND STRUCTURE OF THE DISTORTED TETRAHEDRAL CLUSTER ((η5‐C5H5)4CR4O4), THE THIRD MEMBER OF THE ((η5‐C5H5)MMMON) SERIES WHERE N AND M SATISFY EULER′S THEOREM
Authors: BOTTOMLEY F. , PAEZ D. E. , WHITE P. S.
Published: April 2016

Chromocen bildet bei Behandlung mit einem Äquivalent N2O in Toluol den Titelcluster (I), der nach Sublimation (275‐300°C) und Umkristallisieren aus Hexan als luft‐ und wasserempfindliche kristalline Verbindung isoliert wird.
ChemInform Abstract: TRANSITION‐METAL‐MEDIATED HYDROGENATION OF CARBON MONOXIDE TO OLEFINS: INTERMEDIACY OF COORDINATED CARBENES
Authors: MARSELLA J. A. , FOLTING K. , HUFFMAN J. C. , CAULTON K. G.
Published: April 2016

Der bimetallische Komplex (III), gebildet bei der Umsetzung des Dimethyl‐Zr(IV)‐Komplexes (I) mit dem W‐dihydrid‐Komplex (II) und CO oder aus Methyl‐n2‐acetyl‐bis‐[cyclopentadienyl]‐Zr und (II), lagert sich in Lösung langsam zu den NMR‐spektroskopisch charakterisierten Produkten, dem Zr‐Komplex (IV) und dem Ethylen‐W‐Komplex (V) um.
ChemInform Abstract: REDUCTION OF BIS(CYCLOOCTATETRAENE)URANIUM
Authors: BILLIAU F. , FOLCHER G. , MARQUET‐ELLIS H. , RIGNY P. , SAITO E.
Published: April 2016

Die TiteluranGW‐Verbindung läßt sich unter Verwendung kontrollierter Mengen Lithiumnaphthalid in THF zu einer Cyclooctatetraenyluran(III)‐Verbindung reduzieren.
ChemInform Abstract: ALLYLIC REARRANGEMENTS IN THE THERMAL DECARBONYLATION OF (2‐CYCLOPROPENE‐1‐CARBONYL)RHENIUM COMPOUNDS; NONFLUXIONAL η1‐CYCLOPROPENYLRHENIUM COMPOUNDS
Authors: DESROSIERS P. J. , HUGHES R. P.
Published: April 2016

Die n′‐ Cyclopropenyl‐Re‐carbonyle (III) und (VI) entstehen quantitativ bei der thermischen Decarbonylierung der aus den Acylchloriden (I) bzw. (IV) und Pentacarbonyl‐Re‐Anionen gebildeten Re‐Acyl‐Verbindungen (II) oder (V) unter Allylwanderung.
ChemInform Abstract: SYNTHESIS OF Γ‐OXYPROTOPORPHYRIN IX AND PTEROBILINE (BILIVERDIN IXΓ)
Authors: JACKSON A. H. , JENKINS R. M. , JONES D. M. , MATLIN S. A.
Published: April 2016

Aus den Pyrrolen (I) und (II) entsteht das Oxophlorin (III), das über das Benzoat (IVa) in das Porphyrin (IVb) umgewandelt wird.
ChemInform Abstract: DESIGN AND SYNTHESIS OF A MULTIDETACHABLE BENZHYDRYLAMINE RESIN FOR SOLID PHASE PEPTIDE SYNTHESIS
Authors: TAM J. P. , DIMARCHI R. D. , MERRIFIELD R. B.
Published: April 2016

4‐Hydroxy‐benzophenon (I) wird mit Ameisensäure/Formamid in die Benzhydrylamine (II) übergeführt.
ChemInform Abstract: SYNTHESIS AND CHEMISTRY OF A STABILIZED DEHYDROSECODINE MODEL SYSTEM
Authors: WILSON R. M. , FARR R. A. , BURLETT D. J.
Published: April 2016

Umwandlungsreaktionen von Tryptophyl‐pyridinium‐Verbindungen wie (I) z.B. zu Dehydrosecodin (II) mit Dihydropyridin‐Struktur werden untersucht und entsprechenden Naturstoffen zugeordnet.
ChemInform Abstract: PALLADIUM(0) CATALYZED REACTION OF 1,4‐EPIPEROXIDES. CONVERSION OF A PROSTAGLANDIN ENDOPEROXIDE TO PRIMARY PROSTAGLANDINS
Authors: SUZUKI M. , NOYORI R. , HAMANAKA N.
Published: April 2016

Bei der Titelreaktion gehen die 1,4‐ Epiperoxide (I), (V) bzw. (IX) in die 4‐Hydroxyketone (II), (VI) bzw. (X) und 1,4‐ Diole (III), (VII) bzw. (XI) über; aus (I) bzw. (V) entstehen zusätzlich die Diketone (IV) bzw. (VIII).
ChemInform Abstract: SYNTHESIS OF NUCLEOSIDE ANALOGS BY THE FORMATION OF HETEROCYCLIC BASES. (REVIEW)
Authors: OGURA KH.
Published: April 2016

Review: Es wird zusammenfassend über die Arbeiten des Autors auf dem Gebiet der Herstellung von Nucleosidanaloga durch Cyclisierung von Monosaccharid‐Derivaten, Schiffschen Basen, Hydrazonen, Thioharnstoffen, Thiosemicarbaziden, Thiobiurethanen und Ketoisothiocyanaten berichtet.
ChemInform Abstract: SEMICONDUCTOR ELECTRODES. XXXIX. TECHNIQUES FOR STABILIZATION OF N‐SILICON ELECTRODES IN AQUEOUS SOLUTION PHOTOELECTROCHEMICAL CELLS
Authors: FAN F.‐R. F. , WHEELER B. L. , BARD A. J. , NOUFI R. N.
Published: April 2016

Elektroplattieren von n‐ Si‐Photoelektroden mit Au und anschließendes photoelektrochemisches Beschichten des Au mit Polypyrrol führt zu einer beträchtlichen Verbesserung der Stabilität der Elektrode gegen Photozers.
ChemInform Abstract: USE OF OSMATE(VI) ESTER TRANS‐N,N,N′,N′‐TETRAMETHYL‐1,2‐CYCLOHEXANEDIAMINE COMPLEXES FOR DETERMINATION OF GLYCOL STEREOCHEMISTRY
Authors: RESCH J. F. , MEINWALD J.
Published: April 2016

Zur Identifizierung von Enantiomeren wird das optisch aktive trans‐Tetramethyl‐1,Zcyclohexandiamin (III) verwendet.
ChemInform Abstract: RING‐OPENING REACTIONS. 3. MECHANISTIC PATH VS. RING‐STRAIN CONTROL IN ELIMINATION AND SUBSTITUTION REACTIONS OF 1,1‐DIMETHYL CYCLIC AMMONIUM IONS AND THEIR α,α′‐DIMETHYL‐SUBSTITUTED DERIVATIVES
Authors: COSPITO G. , ILLUMINATI G. , LILLOCCI C. , PETRIDE H.
Published: April 2016

Aus den cyclischen Ammoniumsalzen (I) erhält man bei Eliminierungsreaktionen mit Methylat die Folgeprodukte (II)‐(IV) in den angegebenen Ausbeuten.
ChemInform Abstract: ALKYLATED STEROIDS. PART 4. AN UNUSUAL FAVORSKII REARRANGEMENT
Authors: LOGAN R. T. , ROY R. G. , WOODS G. F.
Published: April 2016

Die Favorskii‐ Umlagerung des aus dem Pregnadienon (I) über das Grignard‐Addukt mit Me‐MgCl als 9: 1‐Isomerengemisch erhältlichen (Literaturhinweis) Bromderivats (II), Hydrolyse der Acetat‐Gruppe und Veresterung mit Diazomethan führen zu einem Produktgemisch, das nach der Behandlung mit KOH/Methanol durch Destillation in eine nicht hydrolysierte neutrale und eine saure Fraktion aufgetrennt wird.
ChemInform Abstract: PHOTOISOMERIZATION OF DICHLOROCARBENE ADDUCTS OF 2,4‐CYCLOHEXADIENONES
Authors: HART H. , WEINER M.
Published: April 2016

Bei der Photolyse des 2,4‐Cyclohexadienon‐Dichlorcarben‐Adduktes (I) entsteht über ein Einschiebungsprodukt (II) unter HCl‐Abspaltung ein Gemisch der beiden Polyene (III) und (IV) oder ein Gemisch der beiden Bicyclen (V) und (VI).
ChemInform Abstract: INTERMOLECULAR TRAPPING OF SULFENYLNITRENES BY ALKENES
Authors: ATKINSON R. S. , JUDKINS B. D.
Published: April 2016

Das bei der Oxidation des Sulfenamids (II) mit Pb‐tetraacetat entstehende Nitren (III) läßt sich mit Ole?‐ nen abfangen: Bildung der Aziridine (V) aus (II) und (IV).
ChemInform Abstract: 15,16‐DIOXO‐SYN‐1,6:8,13‐BISMETHANO(14)ANNULENE
Authors: BALCI M. , SCHALENBACH R. , VOGEL E.
Published: April 2016

Ausgehend von dem Hexahydroanthracen (I) erhält man in fünfstufiger Reaktionsfolge das Diazoketon (II), das über die Quecksilber‐Verbindung (III) in das Bromdiazoketon (IV) übergeführt wird; nach Entfernung von THF aus dem Reaktionsgemisch wird (IV) der Thermolyse in Hexan unterworfen, wobei das Dibromketon (V) entsteht.
ChemInform Abstract: INTRAMOLECULAR INTERACTION BETWEEN A TROPYLIUM ION AND A NONDIRECTLY NEIGHBORING CYCLOPROPANE RING
Authors: NAKAZAWA T. , KUBO K. , OKIMOTO A. , SEGAWA J. , MURATA I.
Published: April 2016

Das Tropyliumtetrafluoroborat (III), das aus dem Benzotricyclononen (I) durch Ringerweiterung mit CH2N2 zum Cycloheptatrien (II) und seinem Isomer (Gemischausb.
ChemInform Abstract: PHOTOCHEMICAL AROMATIC CYANOMETHYLATION
Authors: LAPIN S. , KURZ M. E.
Published: April 2016

Durch Photolyse von Chloracetonitril (II) werden die aromatischen Verbindungen (I) zu den Phenylacetonitrilen (III) cyanomethyliert.
ChemInform Abstract: ISOTOPE EFFECTS AND RELATIVE REACTIVITIES IN THE RADICAL‐CHAIN ADDITION OF BENZENETHIOL TO SUBSTITUTED ALLENES
Authors: PASTO D. J. , WARREN S. E.
Published: April 2016

Dimethylallen (I) reagiert mit dem Thiophenol‐Radi‐ kal (II) zum Addukt (III).
ChemInform Abstract: SYNTHESIS OF NEW 1H‐INDAZOLE DERIVATIVES
Authors: AL‐HAJJAR F. H. , HAMOUD H. S.
Published: April 2016

Aus den Chalkonen (I) erhält man mit Phenylessigsäureethylester (II) in Gegenwart von Ethylat die Cyclisierungsprodukte (III), die mit Hydrazin zu (IV) kondensiert werden.
ChemInform Abstract: SYNTHESIS, STEREOCHEMISTRY, AND ISOMERIC TRANSFORMATIONS OF CIS‐ AND TRANS‐1,2‐DIMETHYL‐4‐ARYL‐IMIDAZOLINES
Authors: TISHCHENKO I. G. , BUBEL' O. N. , KONOVALOV V. A.
Published: April 2016

Die isomeren Aroylaziridin‐Bortrifluorid‐Komplexe (I) und (V) reagieren mit Acetonitril beim Erhitzen unter Bildung von cis‐ und transisomeren Aroyl‐imidazolin‐Komplexen (III) und (VI).
ChemInform Abstract: UNSYMMETRICALLY SUBSTITUTED FUROXANS. PART 6. 3‐NITRO‐4‐PHENYLFUROXAN: REACTION WITH SODIUM METHOXIDE AND X‐RAY STRUCTURAL ANALYSIS
Authors: CALVINO R. , GASCO A. , SERAFINO A. , VITERBO D.
Published: April 2016

Bei der Reaktion der Furoxane (I) und (III) (erhältlich durch Oxidation der entsprechenden 3‐Amino‐furoxane mit H2O2/TFA) mit Na‐methoxid entstehen die Methoxyfuroxane (II) bzw. (IV) (in siedendem Benzol wird (IV) quantitativ zu (II) isomerisiert).
ChemInform Abstract: METABOLITES FROM THE PURPLE HEARTWOODS OF THE MIMOSOIDEAE. PART 4. ACACIA FASCICULIFERA F. MUELL EX. BENTH: FASCICULIFERIN, FASCICULIFEROL, AND THE SYNTHESIS OF 7‐ARYL‐ AND 7‐FLAVANYLPELTOGYNOIDS
Authors: VAN HEERDEN F. R. , BRANDT E. V. , FERREIRA D. , ROUX D. G.
Published: April 2016

Neben bekannten Flavonoiden, Peltogynoiden und Biflavonoiden wurden in dem Kemholz von Acacia fasciculifera die neuen Metaboliten Fasciculiferin (I) und Fasciculiferol (II) identifiziert.
ChemInform Abstract: SYNTHETIC APPLICATIONS OF N‐N LINKED HETEROCYCLES. PART 14. THE PREPARATION OF α‐(4‐PYRIDYL)ESTERS AND α‐(4‐PYRIDYL)NITRILES BY REGIOSPECIFIC ATTACK OF ESTER AND NITRILE ANIONS ON PYRIDINIUM SALTS
Authors: SAMMES M. P. , LEE C. M. , KATRITZKY A. R.
Published: April 2016

Reaktion der Pyridiniumsalze (I) mit den aus den Estern oder Lactonen (II) mit LiN(iPr)2 (LDA) oder Li‐isopropyl‐cyclohexylamid (LICA) erzeugten Li‐Derivaten liefert die Dihydropyridine (III), die ohne Isolierung zu den Pyridinen (IV) zersetzt werden.
ChemInform Abstract: A SIMPLE SYNTHESIS OF SOME 1,10‐PHENANTHROLINES
Authors: BUTT G. , TOPSOM R. D.
Published: April 2016

o‐Phenylendiamin kondensiert mit gib‐ungesättigten Oxo‐Verbindungen in literaturbekannter Weise zu den 1,10‐ Phenanthrolinen (II).
ChemInform Abstract: NOVEL HETEROCYCLES. 8. FUSED ISOQUINOLINES DERIVED FROM THE REACTION OF HOMOPHTHALIC ANHYDRIDE WITH CYCLIC IMINO ETHERS
Authors: COPPOLA G. M.
Published: April 2016

Homophthalsäureanhydrid (I) reagiert mit den Lactimethern (II) in siedendem Toluol zu den Kondensaten (III).
ChemInform Abstract: FACILE DEACYLATION OF N‐ACYL‐2,3‐DIHYDROBENZO‐1,4‐THIAZINE 1‐OXIDE AND 1,1‐DIOXIDE
Authors: FLORIO S. , LENG J. L. , STIRLING C. J. M.
Published: April 2016

Aus den N‐Acetyl‐2,3‐dihydrobenzo‐1,4‐thiazinen (I) entstehen mit Persäure oder Wasserstoffperoxid die Sulfone (II) und die Sulfoxide (IV), die mit Methylat leicht zu (III) bzw. (V) desacetyliert werden.
ChemInform Abstract: SYNTHESIS AND MOLECULAR STRUCTURE OF BIS(2,6‐DIMETHYLPYRIDINE)BIS(TRIFLUOROACETATO)CHROMIUM(II) WITH AN UNUSUAL SQUARE PLANAR ENVIRONMENT OF THE CHROMIUM ATOM
Authors: EREMENKO I. L. , PASYNSKII A. A. , KALINNIKOV V. T. , ALEKSANDROV G. G. , STRUCHKOV YU. T.
Published: April 2016

Ausgehend von CrCl3 wird bei Reaktion mit NaBH4 in THF der Komplex THF ‐ Cr(BH4), gebildet, der mit Trifluoressigsäure und dem Pyridin den monomeren, luftempfindlichen Titelkomplex (I) liefert.
ChemInform Abstract: PHOTOPHYSICAL STUDIES OF URANYL COMPLEXES. 3. PHOTODECOMPOSITION OF THE URANYL COMPLEXES OF ETHYLENEDIAMINETETRAACETIC ACID AND DIETHYLENETRIAMINEPENTAACETIC ACID
Authors: BRITTAIN H. G. , KONTEATIS Z. , JANUSZ S. , PERRY D. L.
Published: April 2016

Bei der Photozersetzung der 1:1‐Titelkomplexe wird in beiden Fällen eine einzelne Decarboxylierung der Liganden unter Bildung von U(IV)‐Produk‐ ten beobachtet, die durch IR‐ und sichtbare Elektronenspektren nachgewiesen und als polymeres Material isoliert werden können.
ChemInform Abstract: PREPARATION AND PROPERTIES OF AND REACTIONS WITH METAL‐CONTAINING HETEROCYCLICS. PART 14. THIAPHOSPHAMETALLACYCLOPENTADIENE AS INTERMEDIATES IN N THE CYCLOTRIMERIZATION OF ALKYNES TO THEIR PHOSPHORUS‐SULFUR ANALOGS
Authors: LINDNER E. , RAU A. , HOEHNE S.
Published: April 2016

Durch Abfangen der sich mit den Verbindungen (I) im Gleichgewicht befindenden, instabilen Thiophosphametallacyclopropane (II) mit elektronenarmen . Alkinen gelingt erstmalig die Gewinnung der P = S‐analogen, thermisch stabilen Zwischenprodukte (III).
ChemInform Abstract: THE PREPARATION, PROPERTIES AND SOME SIMPLE REACTIONS OF (FE(TPP))+SBF6‐
Authors: BALDWIN J. E. , HARALDSSON G. G. , JONES J. G.
Published: April 2016

Die Titelverbindung (I) wird durch Behandlung von Chloro‐ oder Bromo‐tetraphenylporphyrinato‐Fe(III) mit Ag‐hexafluoroantimonat in Methylenchlorid dargestellt.
ChemInform Abstract: A TRIPLE BRIDGED DICOBALT COMPLEX WITH ODD NUMBER OF ELECTRONS (CO21+)
Authors: KARSCH H. H. , MILEWSKI‐MAHRLA B.
Published: April 2016

Die Co(I)‐Verbindung (I) disproportioniert langsam bei Raumtemperatur, schnell oberhalb 40°C zur Co(II)‐Verbindung (II) und zum paramagnetischen, mäßig luftempfindlichen Komplex (III).
ChemInform Abstract: METAL COMPLEXES OF THE 2‐HYDROXY DERIVATIVE OF PYRIDINE N‐OXIDE
Authors: LANDERS A. E. , PHILLIPS D. J.
Published: April 2016

Das 2‐Hydroxyderivat von Pyridin‐N‐oxid existiert nur in der tautomeren Form (I).
ChemInform Abstract: CHIRODICHROISMUS VERSCHIEDENER ENANTIOMERENZUSAMMENSETZUNGEN EINES PLANAREN D(8)‐METALLKOMPLEXES
Authors: SCHURIG V.
Published: April 2016

Metallkomplexes.
ChemInform Abstract: BASISCHE METALLE. 32. MITT. SYNTHESE VON HYDRIDO(PHENYL)‐OSMIUM(II)‐ AUS BENZOL‐OSMIUM(0)‐KOMPLEXEN: INTRAMOLEKULARE INSERTION EINES LEWIS‐BASISCHEN METALLATOMS IN EINE SP(2)‐C‐H‐BINDUNG
Authors: WERNER R. , WERNER H.
Published: April 2016

Beim Versuch, die stabilen Aren‐Alken‐Komplexe (I) durch Austausch des koordinierten Alkens gegen Me3P in die als starke Lewisbasen fungierenden Bis‐(trimethylphosphin)‐Komplexe zu überführen, erhielt man beim Erwärmen der Lösung auf 70°C für (Ia) nach 20 h und für (Ib) nach 5 h nahezu quantitativ die Verbindung (II).
ChemInform Abstract: COMPLEXES OF THE TYPE TRANS‐(PTCL2(PR3)(CNR′)) AND THE CARBENE COMPLEX TRANS‐(PTCL2(PR3)(C(NHC6H4ME‐4)2))
Authors: BRIGGS J. R. , CROCKER C. , SHAW B. L.
Published: April 2016

Die Behandlung der Chlorid‐verbrückten Phosphin‐Pt(II)‐Komplexe (I) mit äquimolaren Mengen der Isocyanide bei tiefen Temp. führt zu den monomeren, isolierbaren trans‐Komplexenn?l).
ChemInform Abstract: NEW CLERODANE DITERPENOID FROM TEUCRIUM POLIUM SUBSPECIES AUREUM. X‐RAY STRUCTURE DETERMINATION
Authors: EGUREN L. , PERALES A. , FAYOS J. , SAVONA G. , PATERNOSTRO M. , PIOZZI F. , RODRIGUEZ B.
Published: April 2016

Die Struktur der Diterpenoide (I) wird aufgeklärt.