bluuebunny/crossref_metadata_2025 huggingface dataset:
Solution‐Processed Two‐Dimensional Metal Dichalcogenide‐Based Nanomaterials for Energy Storage and Conversion
Authors: Cao Xiehong , Tan Chaoliang , Zhang Xiao , Zhao Wei , Zhang Hua
Published: April 2016

The development of renewable energy storage and conversion devices is one of the most promising ways to address the current energy crisis, along with the global environmental concern. The exploration of suitable active materials is the key factor for the construction of highly efficient, highly stable, low‐cost and environmentally friendly energy storage and conversion devices. The ability to prepare two‐dimensional (2D) metal dichalcogenide (MDC) nanosheets and their functional composites in high yield and large scale via various solution‐based methods in recent years has inspired great research interests in their utilization for renewable energy storage and conversion applications. Here, we will summarize the recent advances of solution‐processed 2D MDCs and their hybrid nanomaterials for energy storage and conversion applications, including rechargeable batteries, supercapacitors, electrocatalytic hydrogen generation and solar cells. Moreover, based on the current progress, we will also give some personal insights on the existing challenges and future research directions in this promising field.
Ligand‐Assisted Palladium(II)/(IV) Oxidation for sp3 CH Fluorination
Authors: Sun Huan , Zhang Yi , Chen Ping , Wu Yun‐Dong , Zhang Xinhao , Huang Yong
Published: April 2016

The direct functionalization of inert sp3 CH bonds is limited to a few bond types. Although the activation of sp3 CH bonds can be accomplished under mild conditions using palladium catalysts, the subsequent functionalization is not trivial due to the high energy required to convert palladium(II) to palladium(IV). We have systematically studied the palladium oxidation using computation‐guided experiments for reactions involving strong chelation control. We find that a mild external ligand could significantly accelerate the oxidation of palladium(II) to palladium(IV) for strong bidentate directing groups. The acceleration is believed to be a result of ligand stabilization of both the palladium(II) and palladium(IV) intermediates.

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Stereoselective Monoamine Oxidase‐Catalyzed Oxidative Aza‐Friedel–Crafts Reactions of meso‐Pyrrolidines in Aqueous Buffer
Authors: de Graaff Corien , Oppelaar Barry , Péruch Olivier , Vande Velde Christophe M. L. , Bechi Beatrice , Turner Nicholas J. , Ruijter Eelco , Orru Romano V. A.
Published: April 2016

We disclose the highly diastereoselective combination of monoamine oxidase‐catalyzed oxidation of meso‐pyrrolidines and aza‐Friedel–Crafts reactions in aqueous buffer to give valuable enantioenriched 2‐substituted pyrrolidines in a formal double CH activation process. A range of secondary as well as tertiary amines were shown to be suitable substrates for the biocatalytic oxidation and subsequent addition of a variety of C‐nucleophiles.

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Poly(vinylferrocene)–Reduced Graphene Oxide as a High Power/High Capacity Cathodic Battery Material
Authors: Beladi‐Mousavi Seyyed Mohsen , Sadaf Shamaila , Walder Lorenz , Gallei Markus , Rüttiger Christian , Eigler Siegfried , Halbig Christian E.
Published: April 2016

The preparation and performance of a new cathodic battery material consisting of a composite of poly(vinylferrocene) (PVFc) and reduced graphene oxide (rGO) is described. It shows the highest charge/discharge efficiency (at a rate of 100 A g−1) ever reported for ferrocene–polymer materials. The composite allows for specific capacities up to 0.21 mAh cm−2 (770 mC cm−2, 29 μm film thickness) at a specific capacity density of 114 mAh g−1 and less than 5% performance decay over 300 cycles. The composite material is binder free and the charge storing PVFc accounts for 88% of the total weight of the cathodic material. The superb performance is based on (i) perfect self‐assembling of oxidized PVFc on graphene oxide (GO) leading to PVFc@GO, (ii) its stepwise (n steps) transfer onto a current collector (CC) (PVFc@GO)n@CC (n = drop casting steps), and (iii) the efficient electrochemical transformation of GO into rGO in the composite using viologen as homogeneous electrocatalyst. The self‐assembling step is analyzed by zeta potential and atomic force microscopy (AFM) studies, demonstrating heavy ferrocene loading on GO and a mesoporous composite structure, respectively. Complete GO/rGO transition and quantitative ClO4
− ion breathing of the composite are found by electrochemical quartz crystal microbalance and by electrochemical AFM.
Increased plasma nicotinamide phosphoribosyltransferase is associated with a hyperproliferative phenotype and restrains disease progression in MPN‐associated myelofibrosis
Authors: Rosti Vittorio , Campanelli Rita , Massa Margherita , Viarengo Gianluca , Villani Laura , Poletto Valentina , Bonetti Elisa , Catarsi Paolo , Magrini Umberto , Grolla Ambra A. , Travelli Cristina , Genazzani Armando A. , Barosi Giovanni
Published: April 2016

Myeloproliferative neoplasm (MPN)‐associated myelofibrosis is a clonal, neoplastic disorder of the hematopoietic stem cells, in which inflammation and immune dysregulation play an important role. Extracellular nicotinamide phosphoribosyltransferase (eNAMPT), also known as visfatin, is a cytokine implicated in a number of inflammatory and neoplastic diseases. Here plasma levels of eNAMPT in patients with MPN‐associated myelofibrosis and their effects on disease phenotype and outcomes were examined. The concordance of eNAMPT levels with the marker of general inflammation high‐sensitivity C‐reactive protein (hs‐CRP) was also studied. A total of 333 MPN‐associated myelofibrosis patients (187 males and 146 females) and 31 age‐ and gender‐matched normal‐weight healthy subjects were enrolled in the study main body. Levels of eNAMPT and hs‐CRP were simultaneously assayed in 209 MPN‐associated myelofibrosis patients. Twenty‐four polycythemia vera or essential thrombocythemia patients were used as controls. eNAMPT was over expressed in MPN‐associated myelofibrosis, and eNAMPT expression was correlated with higher white blood cell count, higher hemoglobin, and higher platelet count, suggesting that eNAMPT is an indispensable permissive agent for myeloproliferation of MPN‐associated myelofibrosis. The lack of correlation between eNAMPT and hs‐CRP revealed that eNAMPT in MPN‐associated myelofibrosis does not behave as a canonical inflammatory cytokine. In addition, higher levels of eNAMPT predicted longer time to blast transformation, and protected against progression toward thrombocytopenia and large splenomegaly. In conclusion, in MPN‐associated myelofibrosis high levels of eNAMPT mark the myeloproliferative potential and, at variance with a high number of cancers, are protective against disease progression. Am. J. Hematol. 91:709–713, 2016. © 2016 Wiley Periodicals, Inc.
Superfluorinated Ionic Liquid Crystals Based on Supramolecular, Halogen‐Bonded Anions
Authors: Cavallo Gabriella , Terraneo Giancarlo , Monfredini Alessandro , Saccone Marco , Priimagi Arri , Pilati Tullio , Resnati Giuseppe , Metrangolo Pierangelo , Bruce Duncan W.
Published: April 2016

Unconventional ionic liquid crystals in which the liquid crystallinity is enabled by halogen‐bonded supramolecular anions [CnF2 n+1‐I⋅⋅⋅I⋅⋅⋅I‐CnF2 n+1]− are reported. The material system is unique in many ways, demonstrating for the first time 1) ionic, halogen‐bonded liquid crystals, and 2) imidazolium‐based ionic liquid crystals in which the occurrence of liquid crystallinity is not driven by the alkyl chains of the cation.
Changes in the Enantiomeric Composition of Chiral Mixtures Upon Adsorption on a Non‐Chiral Surface
Authors: Karakalos Stavros , Hong Junghyun , Zaera Francisco
Published: April 2016

The adsorption of propylene oxide, a chiral molecule, on a Pt(111) single‐crystal surface was studied as a function of enantiomeric composition by temperature programmed desorption (TPD) and molecular beams. Two opposing trends were observed leading to variations in the enantiomeric excess (ee) of the chemisorbed layers with respect to the composition of the gas‐phase mixtures: a kinetic effect dominant during the initial uptake, with a preference toward the formation of enantiopure layers, and a steady‐state effect seen after approximately monolayer half‐saturation, at which point the preference is toward racemization. These effects may account for important phenomena such as the bias toward one chirality in biological systems and the selective crystallization of some chiral compounds, and may also be used in practical applications for chemical separations and catalysis.
Isolierung labiler NSO‐Pseudohalogen‐Spezies
Authors: Labbow René , Michalik Dirk , Reiß Fabian , Schulz Axel , Villinger Alexander
Published: April 2016

Mithilfe eines neuen Syntheseweges gelang es, das labile Thionylimid, H‐NSO, zu generieren und mit der sterisch anspruchsvollen Lewis‐Säure B(C6F5)3 abzufangen und vollständig zu charakterisieren. Zum Vergleich wurde eine Reihe von Me3Si‐NSO‐Addukten untersucht. Die Reaktion von Me3Si‐NSO mit dem Silyliumion [Me3Si]+ führte zum bis dato unbekannten Iminosulfoniumion [Me3Si‐N=S‐O‐SiMe3]+, das in Form von Salzen schwach koordinierender Carborationen isoliert und vollständig charakterisiert werden konnte.
Exceedingly Fast Oxygen Atom Transfer to Olefins via a Catalytically Competent Nonheme Iron Species
Authors: Serrano‐Plana Joan , Aguinaco Almudena , Belda Raquel , García‐España Enrique , Basallote Manuel G. , Company Anna , Costas Miquel
Published: April 2016

The reaction of [Fe(CF3SO3)2(PyNMe3)] with excess peracetic acid at −40 °C leads to the accumulation of a metastable compound that exists as a pair of electromeric species, [FeIII(OOAc)(PyNMe3)]2+ and [FeV(O)(OAc)(PyNMe3)]2+, in fast equilibrium. Stopped‐flow UV/Vis analysis confirmed that oxygen atom transfer (OAT) from these electromeric species to olefinic substrates is exceedingly fast, forming epoxides with stereoretention. The impact of the electronic and steric properties of the substrate on the reaction rate could be elucidated, and the relative reactivities determined for the catalytic oxidations could be reproduced by kinetic studies. The observed fast reaction rates and high selectivities demonstrate that this metastable compound is a truly competent OAT intermediate of relevance for nonheme iron catalyzed epoxidations.
Atomistic Conversion Reaction Mechanism of WO3 in Secondary Ion Batteries of Li, Na, and Ca
Authors: He Yang , Gu Meng , Xiao Haiyan , Luo Langli , Shao Yuyan , Gao Fei , Du Yingge , Mao Scott X. , Wang Chongmin
Published: April 2016

Intercalation and conversion are two fundamental chemical processes for battery materials in response to ion insertion. The interplay between these two chemical processes has never been directly seen and understood at atomic scale. Here, using in situ HRTEM, we captured the atomistic conversion reaction processes during Li, Na, Ca insertion into a WO3 single crystal model electrode. An intercalation step prior to conversion is explicitly revealed at atomic scale for the first time for Li, Na, Ca. Nanoscale diffraction and ab initio molecular dynamic simulations revealed that after intercalation, the inserted ion–oxygen bond formation destabilizes the transition‐metal framework which gradually shrinks, distorts and finally collapses to an amorphous W and MxO (M=Li, Na, Ca) composite structure. This study provides a full atomistic picture of the transition from intercalation to conversion, which is of essential importance for both secondary ion batteries and electrochromic devices.
Production pathways for renewable jet fuel: a review of commercialization status and future prospects
Authors: Mawhood Rebecca , Gazis Evangelos , de Jong Sierk , Hoefnagels Ric , Slade Raphael
Published: April 2016

Aviation is responsible for an increasing share of anthropogenic CO2 emissions. Decarbonization to 2050 is expected to rely on renewable jet fuel (RJF) derived from biomass, but this represents a radical departure from the existing regime of petroleum‐based fuels. Increased market deployment will require significant cost reductions, alongside adaptation of existing supply chains and infrastructure. This paper maps development and manufacturing efforts for six RJF production pathways expected to reach commercialization in the next 5–10 years. A Rapid Evidence Assessment was conducted to evaluate the technological and commercial maturity of each pathway and progress toward international certification, using the Commercial Aviation Alternative Fuels Initiative's Fuel Readiness Level (FRL) framework. Planned and operational facilities have been cataloged alongside partnerships with the aviation industry. Policy and economic factors likely to affect future development and deployment are considered. Hydroprocessed Esters and Fatty Acids (FRL 9) is the most developed pathway. It is ASTM certified, has fuelled the majority of RJF flights to date, and is produced at three commercial‐scale facilities. Fischer‐Tropsch derived fuels are moving toward the start‐up of first commercial facilities (FRL 7 and 8), although widespread deployment seems unlikely under current market conditions. The Direct Sugars to Hydrocarbons conversion pathway (FRL 5–7) is being championed by Amyris and Total in Brazil, but has yet to be demonstrated at scale. Other pathways are in the demonstration and pilot phases (FRL 4–6). Despite growing interest in RJF, demand and production volumes remain negligible. Development of supportive policy is likely to be critical to future deployment. © 2016 Society of Chemical Industry and John Wiley & Sons, Ltd
Synthesis and luminescence characterization of a new yellowish‐orange phosphor: Ba2B10O17:Sm3+
Authors: Li Jiangong , Yan Huifang , Yan Fengmei
Published: April 2016

A new yellowish‐orange emitting phosphor, Ba2B10O17:Sm3+ for use as a white light‐emitting diode (W‐LED) was synthesized by a solid‐state reaction method. The X‐ray diffraction results indicated that a pure Ba2B10O17 material was obtained. As a potential yellowish‐orange luminescent material for W‐LEDs, the Ba2B10O17:Sm3+ phosphor could be excited effectively by near‐ultraviolet (n‐UV) light and exhibited yellowish‐orange emission centered at 560 nm corresponding to the 4G5/2 → 6H5/2 transition of Sm3+ ions. The optimum concentration of Sm3+ ions in Ba2B10O17, critical transfer distance (Ra) and concentration quenching mechanism of the presented phosphor were investigated. Moreover, CIE chromaticity coordinates and color purity performance of the Ba2B10O17:Sm3+ phosphor were also discussed. The present work suggests that the Ba2B10O17:Sm3+ phosphor has potential as a type of yellowish‐orange emitting phosphor. Copyright © 2016 John Wiley & Sons, Ltd.
Ethanol Sensing Properties of Au‐functionalized NiO Nanoparticles
Authors: Park Sunghoon , Kheel Hyejoon , Sun Gun‐Joo , Hyun Soong Keun , Park Sang Eon , Lee Chongmu
Published: April 2016

Pristine and Au‐functionalized nickel oxide (NiO) nanoparticles were synthesized via a simple solvothermal route and the ethanol sensing properties of multiple‐networked Au‐doped and undoped NiO nanoparticle sensors were examined. The pristine and Au‐functionalized NiO nanoparticle sensor showed responses of 442 and 273%, respectively, to 1000 ppm of ethanol at 325 °C. The Au‐functionalized NiO nanoparticle sensor showed faster response than the pristine NiO counterpart, whereas the recovery time of the former was similar to that of the latter. The optimal operating temperature of the pristine and Au‐functionalized NiO nanoparticles was 325 and 350 °C, respectively, by Au‐doping. Both the pristine and Au‐functionalized NiO nanoparticle sensors showed selectivity for ethanol gas over methanol, acetone, benzene, and toluene gases. The underlying mechanism of the enhanced sensing performance of the Au‐functionalized NiO nanoparticles toward ethanol might be due to modulation of the depletion layer formed around Au particles and the Schottky barriers formed at the Au–NiO junction accompanying ethanol adsorption and desorption, the spill‐over effect and high catalytic activity of Au nanoparticles and the smaller diameter of the particles in the Au‐functionalized NiO sensor.
Ethanol production from rice hull using Pichia stipitis and optimization of acid pretreatment and detoxification processes
Authors: Germec Mustafa , Kartal Fatma Kubra , Bilgic Merve , Ilgin Merve , Ilhan Eda , Güldali Hazal , Isci Aslı , Turhan Irfan
Published: April 2016

The goal of this study was to produce ethanol from rice hull hydrolysates (RHHs) using Pichia stipitis strains and to optimize dilute acid hydrolysis and detoxification processes by response surface methodology (RSM). The optimized conditions were found as 127.14°C, solid:liquid ratio of 1:10.44 (w/v), acid ratio of 2.52% (w/v), and hydrolysis time of 22.01 min. At these conditions, the fermentable sugar concentration was 21.87 g/L. Additionally, the nondetoxified RHH at optimized conditions contained 865.2 mg/L phenolics, 24.06 g/L fermentable sugar, no hydroxymethylfurfural (HMF), 1.62 g/L acetate, 0.36 g/L lactate, 1.89 g/L glucose, and 13.49 g/L fructose + xylose. Furthermore, RHH was detoxified with various methods and the best procedures were found to be neutralization with CaO or charcoal treatment in terms of the reduction of inhibitory compounds as compared to nondetoxified RHH. After detoxification procedures, the content of hydrolysates consisted of 557.2 and 203.1 mg/L phenolics, 19.7 and 21.60 g/L fermentable sugar, no HMF, 0.98 and 1.39 g/L acetate, 0 and 0.04 g/L lactate, 1.13 and 1.03 g/L glucose, and 8.46 and 12.09 g/L fructose + xylose, respectively. Moreover, the base‐line mediums (control), and nondetoxified and detoxified hydrolysates were used to produce ethanol by using P. stipitis strains. The highest yields except that of base‐line mediums were achieved using neutralization (35.69 and 38.33% by P. stipitis ATCC 58784 and ATCC 58785, respectively) and charcoal (37.55% by P. stipitis ATCC 58785) detoxification methods. Results showed that the rice hull can be utilized as a good feedstock for ethanol production using P. stipitis. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:872–882, 2016
The impact of gross anatomy laboratory on first year medical students’ interest in a surgical career
Authors: Pulcrano Marisa E. , Malekzadeh Sonya , Kumar Anagha
Published: April 2016

This study sought to determine the impact of gross anatomy laboratory (GA) on first year medical students’ (M1) interest in a surgical career. Secondary objectives included identifying other influences in M1s’ career decision making.

This prospective study included surveys before and after GA. All M1s enrolled in GA were invited to participate. Sixty students completed both the pre‐ and post‐test surveys. A 5‐point Likert‐type scale surveyed participants’ interests, specific personality traits, experience during the course of GA, and likelihood of pursuing a surgical career. Statistical analysis included Wilcoxon Signed Rank Test and (Polychotomous) Ordinal Logistic Regression Model. Students’ desire to work with their hands increased (50 vs. 33.3%) and enjoyment working with instruments and tools similarly increased (50 vs. 41.7%). Likelihood of pursuing a surgical career after gross anatomy increased in 31.7% of students, decreased in 16.7%, and was unchanged in 51.7%. Over 75% of students with a prior interest in surgery and 21% of those who previously felt neutral agreed that they were likely to pursue a career in surgery at the conclusion of the laboratory. Students with a surgeon family member were 0.1976 times as likely to exhibit a positive change in interest (P values 0.024). Gross anatomy may influence up to a third of the class to consider a surgical career, especially those with a prior interest in surgery and those previously feeling ambivalent. Students with a surgeon family member became less likely to enter a surgical career after gross anatomy. Clin. Anat. 29:691–695, 2016. © 2016 Wiley Periodicals, Inc.
Giant diverticulum‐ A rare complication of a common surgical condition
Authors: Cubas Vanessa , Ward Stephen T. , Dmitrewski Jan
Published: April 2016

Key Clinical Message

A gentleman presented with abdominal distension and pain. CT confirmed a 20 cm sigmoid diverticulum. A giant diverticulum, typified by diverticula greater than 4 cm, often requires colonic resection. Fewer than 200 cases have been reported, most measuring 7–15 cm. I present a rare complication of a common surgical condition with images.
Doctor, I am sweating on just one side of my body: unilateral hyperhidrosis associated with mesothelioma
Authors: Waran Eswaran
Published: April 2016

Key Clinical Message

Unilateral hyperhidrosis is rare and should prompt a thorough review for potentially serious underlying etiologies. Available treatments for unilateral hyperhidrosis secondary to mesothelioma are limited and its presence as a symptom usually signifies advanced disease and a poor prognosis.
Specific Electrostatic Molecular Recognition in Water
Authors: Li Ming , Hoeck Casper , Schoffelen Sanne , Gotfredsen Charlotte H. , Meldal Morten
Published: April 2016

The identification of pairs of small peptides that recognize each other in water exclusively through electrostatic interactions is reported. The target peptide and a structure‐biased combinatorial ligand library consisting of ≈78 125 compounds were synthesized on different sized beads. Peptide–peptide interactions could conveniently be observed by clustering of the small, fluorescently labeled target beads on the surface of larger ligand‐containing beads. Sequences of isolated hits were determined by MS/MS. The interactions of the complex showing the highest affinity were investigated by a novel single‐bead binding assay and by 2D NMR spectroscopy. Molecular dynamics (MD) studies revealed a putative mode of interaction for this unusual electrostatic binding event. High binding specificity occurred through a combination of topological matching and electrostatic and hydrogen‐bond complementarities. From MD simulations binding also seemed to involve three tightly bound water molecules in the interface between the binding partners. Binding constants in the submicromolar range, useful for biomolecular adhesion and in nanostructure design, were measured.
Accessible Mannitol‐Based Amphiphiles (MNAs) for Membrane Protein Solubilisation and Stabilisation
Authors: Hussain Hazrat , Du Yang , Scull Nicola J. , Mortensen Jonas S. , Tarrasch Jeffrey , Bae Hyoung Eun , Loland Claus J. , Byrne Bernadette , Kobilka Brian K. , Chae Pil Seok
Published: April 2016

Integral membrane proteins are amphipathic molecules crucial for all cellular life. The structural study of these macromolecules starts with protein extraction from the native membranes, followed by purification and crystallisation. Detergents are essential tools for these processes, but detergent‐solubilised membrane proteins often denature and aggregate, resulting in loss of both structure and function. In this study, a novel class of agents, designated mannitol‐based amphiphiles (MNAs), were prepared and characterised for their ability to solubilise and stabilise membrane proteins. Some of MNAs conferred enhanced stability to four membrane proteins including a G protein‐coupled receptor (GPCR), the β2 adrenergic receptor (β2AR), compared to both n‐dodecyl‐d‐maltoside (DDM) and the other MNAs. These agents were also better than DDM for electron microscopy analysis of the β2AR. The ease of preparation together with the enhanced membrane protein stabilisation efficacy demonstrates the value of these agents for future membrane protein research.
Mesoporous Trimetallic PtPdRu Spheres as Superior Electrocatalysts
Authors: Jiang Bo , Ataee‐Esfahani Hamed , Li Cuiling , Alshehri Saad M. , Ahamad Tansir , Henzie Joel , Yamauchi Yusuke
Published: April 2016

Mesoporous Trimetallic PtPdRu Spheres with well‐defined spherical morphology and uniformly sized pores were synthesized in an aqueous solution using ascorbic acid as the reducing agent and triblock copolymer F127 as the pore directing agent. These mesoporous PtPdRu spheres exhibited enhanced electrocatalytic activity compared to commercial Pt black, resulting in a ∼4.9 times improvement in mass activity for the methanol oxidation reaction. The excellent electrocatalytic activity and stability are due to the unique mesoporous architecture and electronic landscape between different elements.
ChemInform Abstract: TRANSPORT NUMBERS AND EXTERNAL MOBILITIES IN THE BINARY MOLTEN MIXTURE (SILVER, CESIUM) BROMIDE
Authors: POILLERAT G. , BRENET J.
Published: April 2016

Die Überführungszahlen in AgBr/CsBr‐Schmelzen (650°C) werden mit einer Hittorf‐Methode bestimmt und die Ionenbeweglichkeiten (Ag+, Cs+, Br‐) berechnet.
ChemInform Abstract: SULFUR TETRANITRIDE AND ITS DERIVATIVES: STRUCTURE OF THE REACTION PRODUCT FROM NI(HN2S2)2, FORMALDEHYDE, AND METHANOL
Authors: THEWALT U.
Published: April 2016

Eine Röntgenstrukturanalyse ergibt, daß der Ni(II)‐ Komplex, der bei der Umsetzung von (I) mit Formaldehyd in Methanol entsteht, die Struktur (II) besitzt.
ChemInform Abstract: Reactions of Molybdenum Oxo‐complexes with Substituted Hydrazines. Part 1. The Preparation of Molybdenum Alkyl‐ and Aryl‐imido‐complexes; the Crystal and Molecular Structure of (N‐Benzoyl‐N′‐p‐tolyldiazene‐N′O)dichloro(dimethylphenyl‐phosphine) (p‐tolylimido)molybdenum.
Authors: BISHOP M. W. , CHATT J. , DILWORTH J. R. , HURSTHOUSE M. B. , JAYAWEERA S. A. A. , QUICK A.
Published: April 2016

Die Oxo‐Mo(IV)‐Komplexe (I) reagieren mit substituierten Hydrazinen (II) unter Rückfluß in MeOH zu den Imido‐Komplexen (III), für die in den meisten Fällen keine Ausb. angegeben ist.
ChemInform Abstract: REACTIONS OF MOLYBDENUM OX
Authors: BUTCHER A. V. , CHATT J. , DILWORTH J. R. , LEIGH G. J. , HOURSTHOUSE M. B. , JAYAWEERA S. A. A. , QUICK A.
Published: April 2016

Die Reaktion der Oxo‐Mo(IV)‐ Komplexe (I) mit den Aroylhydrazinen (II) in MeOH unter Rückfluß liefert die Diazenidokomplexe (III).
ChemInform Abstract: LABORATORY EXPLOSION
Authors: COCHRAN J.
Published: April 2016

Diethylaminoschwefeltrifluorid (I) zersetzt sich bei Temperaturen oberhalb 95°C explosionsartig.
ChemInform Abstract: THE REACTION OF VICINAL DINITRO COMPOUNDS WITH TIN(II) CHLORIDE
Authors: FUKUNAGA K. , KIMURA M.
Published: April 2016

Die Diaryldinitro‐Verbindungen (Ia) bis (Ic) reagieren mit SnCl2 unter Bildung der Olefine (II).
ChemInform Abstract: THERMOLABILE HYDROCARBONS. VIII. THERMOLYSES OF 1,2‐DIALKYL‐1,2‐DIPHENYLETHANES
Authors: HELLMANN G. , BECKHAUS H.‐D. , RUECHARDT C.
Published: April 2016

Für die durch Dimerisierung dargestellten Titelverbindungen (Alkyl z.B. C1‐C5‐Alkyl, 1‐Adamantyl) wird die Konformation bestimmt Die Konstanten des fast ausschließlich unter Spaltung der zentralen C‐C‐Bindung erfolgenden thermischen Zerfalls (0.121 ‐ 22.5· l0‐4 /s) korrelieren mit den Spannungsenthalpien.
ChemInform Abstract: THE REACTIVITY‐SELECTIVITY PRINCIPLE. 4. SELECTIVITY OF ALKYL RADICALS IN THE E COMPETITION SYSTEM BROMOTRICHLOROMETHANE/TETRACHLOROMETHANE
Authors: GIESE B. , KELLER K.
Published: April 2016

Aus der genau entgegengesetzten Selektivitätsreihenfolge der Radikale (I)‐(IV) bei 273 und 403 K wird als isoselektive Temperatur ca.340 K ermittelt.
ChemInform Abstract: REACTION OF AMIDES OF DERIVATIVES OF 3‐IMIDAZOLINE AND 3‐IMIDAZOLINE 3‐OXIDE WITH SODIUM HYPOBROMITE
Authors: SHCHUKIN G. I. , VOLODARSKII L. B.
Published: April 2016

Während das Amid (I) mit Natriumhypobromit zu dem Amin (II) reagiert, entsteht aus dem Amid (III) nicht das entsprechende Amin (IV), sondern das Ketoimidazol‐oxyl(V).
ChemInform Abstract: ELECTROPHILIC AROMATIC SUBSTITUTIONS. PART 18. CHLORINE OXIDE (CL2O)/TRIFLUOROMETHANESULFONIC ANHYDRIDE ‐ A HIGHLY REACTIVE CHLORINATING AGENT
Authors: EFFENBERGER F. , KUSSMAUL U. , HUTHMACHER K.
Published: April 2016

Ein Gemisch aus Dichlormonoxid (I) und Trifluormethansulfonsäureanhydrid (II) trennt sich bei ‐78°C in die beiden flüssigen Phasen Trichlortrifluormethansulfonat (IV) und Chlor‐tris(trifluormethansulfonat (V), mit denen es über Chlortrifluormethansulfonat (III) in einem temperaturabhängigen Gleichgewicht steht.
ChemInform Abstract: THE CROSS‐ALDOL REACTION OF 3‐ALKOXY‐2‐CYCLOHEXEN‐1‐ONES WITH α,β‐ENALS. A SYNTHESIS OF 4‐(TRANS‐2‐BUTENYLIDENE)‐3,5,5‐TRIMETHYL‐2‐CYCLOHEXEN‐1‐ONES
Authors: TORII S. , INOKUCHI T. , OGAWA H.
Published: April 2016

Die Titelreaktion entsprechender Verbindungen (I) (bzw. ihrer Enolatanionen) und (II) liefert die Produkte (III) (threo/erythro‐Gemische; die Zahlenangaben in Klammern bezeichnen das jeweilige threo/erythro‐Verhältnis).
ChemInform Abstract: SYNTHESIS OF NEW CHIRAL HYDROCARBONS
Authors: BIEBER W. , VOEGTLE F.
Published: April 2016

Als Beispiel für die Synthese von chiralen Kohlenwasserstoffen durch unsymm überbrücken achiraler aromatischer Systeme wird aus dem Naphthalin (I) (aus Bis‐(3‐methylphenyl)‐Li‐cuprat und l‐Iod‐8‐(4‐methylphenyl)‐naphthalin in 34proz. Ausb. erhältlich) über sein Dibrom‐Derivat (II) das hinreichend starre Molekül (III) dargestellt.
ChemInform Abstract: SYNTHESES AND REACTION BEHAVIOR OF NEW TRI‐ AND TETRACYCLIC SULFUR ANALOGS OF INDOLE, I
Authors: NEIDLEIN R. , KOLB N.
Published: April 2016

Benzothiophen ergibt den Ketocarbonsäureester (I), der nach Reduktion und Verseifung zum Bromid (III) halogeniert wird.
ChemInform Abstract: REACTIONS WITH INDOLE DERIVATIVES. XXXVII. STEREOSELECTIVE SYNTHESIS OF POLYCYCLIC CYCLOPROPANE DERIVATIVES IN THE INDOLOQUINOLIZINE SERIES
Authors: BECKER R. , BENZ G. , ROESNER M. , ROSENTRETER U. , WINTERFELDT E.
Published: April 2016

Kondensation der ungesättigten Aldehyde (I) mit dem Bromdiester (II) ergibt die Cyclopropane (III); neben (IIIb) entsteht das Acetallacton (IV).
ChemInform Abstract: SYNTHESIS OF 5‐METHYL‐1,3,2‐BENZODITHIAZOLES
Authors: CHEN C. H. , DONATELLI B. A.
Published: April 2016

Aus dem Dimercaptan erhält man bei der Chlorierung das Bis‐sulfeny1chlorid (I), das mit den Aminen (II) zu den Benzodithiazolen (III) führt.
ChemInform Abstract: SYNTHESIS AND SPECTROSCOPIC STUDIES OF SOME HETEROCYCLIC COMPOUNDS. REACTION OF 3‐ARYL‐1‐PHENYL‐2‐PROPEN‐1‐ONES WITH ETHYL PHENYLACETATE
Authors: AL‐FARKH Y. A. , AL‐HAJJAR F. H. , HAMOUD H. S.
Published: April 2016

Phenylessigester (I) reagiert mit den Benzalketonen (II) bei niederen Temperaturen zu den Addukten (III), die zu den Carbonsäuren (IV) hydrolysiert oder unter Rückfluß zu (V) cyclisiert werden können.
ChemInform Abstract: ANTIMYCOTIC AGENTS. VIII. SYNTHESIS OF DEHYDRO‐N‐MANNICH BASES WITH THE PIPERIDINE AND PIPERAZINE RING
Authors: KREUTZBERGER A. , KREUTZBERGER E.
Published: April 2016

Cyanamid (I) und Triazin (II) reagieren über Zwischenstufen (III) und (IV) in Gegenwart der Amine (V) zu den Dehydro‐N‐Mannichbasen (VI), die zum Teil antimykotische Wirkung zeigen.
ChemInform Abstract: SYNTHESIS OF 2‐AMINO‐3‐METHOXYPYRAZINE
Authors: BOTTA M. , DE ANGELIS F. , NICOLETTI R.
Published: April 2016

Malonester (I) kann durch aufeinanderfolgende Behandlung mit Ammoniak, salpetriger Säure, Ammoniak und Wasserstoff in Amino‐malondiamid (II) übergeführt werden, aus dem mit Glyoxal das Pyrazin (IVa) erhalten wird.
ChemInform Abstract: SYNTHESIS AND STRUCTURE OF 1,4‐DIBORYLCYCLOPENTADIENES
Authors: JUTZI P. , SEUFERT A.
Published: April 2016

Bis‐trimethylsilyl‐cyclo‐pentadien (I) reagiert mit Borhalogeniden im Molverhältnis 1:2 zu Diborylcyclopentadienen (II).
ChemInform Abstract: REACTIONS OF METAL AND METALLOID COMPOUNDS WITH POLYFUNCTIONAL MOLECULES. XX. EACTIONS OF N‐(TRIMETHYLSILYL)CARBOXAMIDES WITH DIHALOORGANYLBORANES A D TRIHALOBORANES
Authors: MARINGGELE W. , MELLER A.
Published: April 2016

Die Trihalogen‐N‐silylacetamide (I) reagieren mit Trichlor‐,Tribromboran oder Dihalogenorganylboranen (II) zu den entsprechenden Derivaten des Ringsystems (III).
ChemInform Abstract: AMINOLYSIS REACTIONS OF 1‐DICHLOROPHOSPHINYL‐2,2,2‐TRICHLOROPHOSPHAZENE, CL2P(O).N:PCL3
Authors: BULLOCH G. , KEAT R.
Published: April 2016

Die Reaktion der Titelverbindung (II) mit den prim. Aminen (III) führt bei der 1:2‐molaren Umsetzung zu den monosubstituierten acyclischen Produkten (Ia) (n: 1) und (Ib), letzte‐res kann auch als Tautomeres (IV) vorliegen.
ChemInform Abstract: A CONVENIENT SYNTHESIS FOR (O‐METHOXYPHENYL)DIMETHYLPHOSPHINE
Authors: LEVASON W. , SMITH K. G.
Published: April 2016

Das aus Dimethylphenylphosphin (I) durch Umsetzung mit Lithium hergestellte Lithiumdimethylphosphid (II) reagiert mit o‐Bromanisol (III) zu dem 0‐Methoxyphenyl‐dimethylphosphin (IV).
ChemInform Abstract: SYNTHESIS AND PHOSPHORUS‐31 NMR STUDY OF DIHYDRONAPHTHALENO AND NAPHTHALENO DERIVATIVES OF PHOSPHOLENE OXIDES
Authors: ORTON W. L. , MESCH K. A. , QUIN L. D.
Published: April 2016

Die Diene (I) reagieren mit den Phosphinen (II) nach dem Schema einer Diels‐Alder‐Reaktion, wobei nach Hydrolyse die Phosphinoxide (III) isoliert werden.
ChemInform Abstract: NOVEL ROUTE TO CATIONIC NITROSYL COMPLEXES. DISPLACEMENT OF CARBON DISULFIDE COORDINATED TO IRON
Authors: TOUCHARD D. , LE BOZEC H. , DIXNEUF P.
Published: April 2016

Die äquimolare Umsetzung der oktaedrischen Komplexe (I) mit Nitrosylhexafluorophosphat liefert die fünffach‐koordinierten, kationischen Nitrosyl‐Fe‐Komplexe (II).
ChemInform Abstract: REACTIONS OF COORDINATED LIGANDS. PART 19. INSERTION REACTIONS OF ACETYLENES, , METHYLENECYCLOPROPANE, AND BUTA‐1,3‐DIENE WITH TRICARBONYL(η5‐INDENYL)METHYLMOLYBDENUM AND DICARBONYL(η5‐INDENYL)METHYLIRON
Authors: BOTTRILL M. , GREEN M.
Published: April 2016

Untersucht werden Insertionsreaktionen mit Mo‐Me‐ und Fe‐Me‐σ‐Bindungen, wobei Verbindungen verwendet werden mit dem stärker reaktiven Indenylsystem.
ChemInform Abstract: METAL COMPLEXES OF CYCLOPHANES. I. PREPARATION AND CHARACTERIZATION OF μ‐(1,3‐PROPANEDITHIOLATO(2‐)‐S,S′:S,S′)‐BIS(TRICARBONYLIRON)(FE‐FE), A DYNAMIC ORGANOMETALLIC TRICYCLIC COMPOUND
Authors: KORAY A. R. , ZIEGLER M. L.
Published: April 2016

Das Tetrathia‐paracyclophan (I) reagiert mit Eisenpentacarbonyl (II) zu einem Zweikernkomplex (III) in 30%iger Ausbeute.
ChemInform Abstract: INTERACTION OF NICKEL Σ‐ETHYL DERIVATIVES WITH DIETHYLALUMINUM HALIDES. INFLUENCE OF STERIC FACTORS
Authors: NESMEYANOV A. N. , ISAEVA L. S. , MOROZOVA L. N.
Published: April 2016

Die Reaktion des Ni‐Komplexes (I) mit Diethylaluminiumhalogeniden liefert in Gegenwart von Tricyclohexylphosphin im Überschuß die Hydridkomplexe (II).
ChemInform Abstract: HYDROPHOBIC INTERACTIONS IN TERNARY ZINC(II) AND COPPER(II) COMPLEXES CONTAINING 1,10‐PHENANTHROLINE OR 2,2′‐BIPYRIDYL AND AN ALKANE CARBOXYLATE OR SULFONATE
Authors: MITCHELL P. R.
Published: April 2016

NMR‐Untersuchungen zeigen, daß die Methylresonanzen von 3‐Trimethylsilylpropionat bzw. 3‐Trimethylsilylpropan‐1‐sulfonat durch die Komplexkationen Bipyridyl‐ und Phenanthrolinzink(II) in ein höheres Feld verschoben werden, während Zn2+‐Ionen gar keine Verschiebung und die Heterocyclen allein nur wesentlich kleinere Verschiebungen verursachen.
ChemInform Abstract: THE PREPARATION OF SOLUBLE MIXED LIGAND RHODIUM HYDROGENATION CATALYSTS BY REDUCTION OF DIOXYGENRHODIUM COMPLEXES
Authors: AUGUSTINE R. L. , PELLET R. J.
Published: April 2016

Die Reduktion des Disauerstoffkomplexes (I) mit Ethanol in Gegenwart von 1 Äquivalent eines Phosphinliganden L, einem anderen als Triphenylphosphin, ergibt eine katalytisch aktive Mischung, die ein PPh3 :L‐Verhältnis von 3:1 besitzt.
ChemInform Abstract: NITRILE‐IRIDIUM(I) COMPLEXES, 1‐(IR(CO)(RNC)(PPH3))‐7‐C6H5‐1,7‐(Σ‐B10C2H10): LIGAND SUBSTITUTION AND MOLECULAR HYDROGEN OXIDATIVE ADDITION REACTIONS
Authors: LONGATO B. , BRESADOLA S.
Published: April 2016

Die Titelkomplexe (II) entstehen bei der Behandlung der trans‐Diphosphin‐Analogen (I) mit Acetonitril oder Benzonitril.
ChemInform Abstract: PREPARATION AND CHARACTERIZATION OF A NEW MESO‐SUBSTITUTED TETRAPYRROLE MACROCYCLE: MESO‐TETRA(2‐(3‐CARBOXYETHYL)FURYL)PORPHINE, (TFCO2ETP)
Authors: MOMENTEAU M. , LOOCK B. , BISAGNI E.
Published: April 2016

Pyrrol (I) und 2‐Formyl‐furan‐3‐carbonester (II) kondensieren zu einem meso‐substituierten Tetrapyrrol‐Derivat (IIIa), das zu (IIIb) verseift wird.
ChemInform Abstract: THE IONIC CONDUCTIVITY OF FLUORITE‐STRUCTURED SOLID SOLUTIONS OF COMPOSITION: MF2:UF4:CEF3 (M = CALCIUM, STRONTIUM, BARIUM)
Authors: WAPENAAR K. E. D. , SCHOONMAN J.
Published: April 2016

Die Ionenleitfähigkeit (σ) fester Lösungen der Zusammensetzung M1‐x‐yUxCeyF2+2x+y (0.027 < 2x+y < 0.265; x > y) ist eine lineare Funktion der Konzentration der Dotierungselemente und nimmt mit steigender Temperatur in der Form einer log(σT)/(1/T)‐Geraden zu (Untersuchungsbereich 300‐550 K).
ChemInform Abstract: THE PIEZOELECTRIC DETECTION OF ELECTRODE SURFACE PROCESSES
Authors: MALPAS R. E. , FREDLEIN R. A. , BARD A. J.
Published: April 2016

Oberflächenprozesse (Adsorption, Filmbildung) auf einer Metallscheibenelektrode sind mit elastischen Verformungen verbunden, die sich durch Verkitten der Elektrode mit einem piezoelektrischen Keramikplättcheniauf dieses übertragen und als piezoelektrische Signale erkennbar machen lassen.
ChemInform Abstract: BENZYLIC ORGANOLITHIUM CARBANION REACTIVITY. 3. KINETIC STUDIES WITH NEOPENTYL HALIDES AND BENZYL FLUORIDE
Authors: ZIEGER H. E. , MATHISEN D.
Published: April 2016

Die Li‐Verbindungen (I) ergeben mit den Halogeniden (II) in einer Reaktion 2. Ordnung die Alkane (III).
ChemInform Abstract: PHOTO‐REACTION OF β‐KETOVINYL SULFUR COMPOUNDS
Authors: TAMURA Y. , KIYOKAWA H. , KITA Y.
Published: April 2016

Die aus den Chlor‐cyclohexenonen (I) zugänglichen Sulfone (II) bzw. (V) ergeben bei der Photolyse unter Schwefeldioxid‐Eliminierung das β‐Phenyl‐cyclohexenon (III) bzw. die Bis‐cyclohexenone (VI), von denen (VIa) auch durch eine analoge Eliminierung des Sulfoxids (IX) zugänglich ist.
ChemInform Abstract: REDUCTIONS OF HETEROCYCLIC SYSTEMS; I. THE SELECTIVE REDUCTION OF 4‐SUBSTITUTED PYRIDINIUM SALTS WITH CYANOBOROHYDRIDE
Authors: HUTCHINS R. O. , NATALE N. R.
Published: April 2016

In 4‐Position durch Akzeptoren aktivierte Pyridiniumsalze (I) werden mit Natriumcyanborhydrid selektiv zu 1,2‐Dihydropyridinen (II) reduziert, die sauer zu 2,5‐Dihydropyridiniumsalzen (III) isomerisieren und zu 1,2,5,6‐Tetrahydropyridinen (IV) reduziert werden.
ChemInform Abstract: SYNTHESIS OF CYCLOPROPANE DERIVATIVES FROM OLEFINS BY THE REACTION WITH ORGANIC GEM‐DIHALIDES AND COPPER
Authors: KAWABATA N. , KAMEMURA I. , NAKA M.
Published: April 2016

Umsetzung von Olefinen wie z.B. (I) und (IV) mit Methyleniodid (II) und Cu‐Staub in aromatischen Kohlenwasserstoffen liefert in elektrophiler und stereospezifischer Reaktion die Cyclopropane (III) bzw.′ (V) (Diskussion des Mechanismus).
ChemInform Abstract: SYNTHETIC METHODS AND REACTIONS; 65. MILD CLEAVAGE OF ETHYLENE DITHIOACETALS WITH NITROSONIUM AND NITRONIUM SALTS
Authors: OLAH G. A. , NARANG S. C. , SALEM G. F. , GUPTA B. G. B.
Published: April 2016

Dithioacetale vom Typ (I) werden mit Nitrosiumhydrogensulfat oder Natriumnitrit/Trifluoressigsäure bei Raumtemperatur, mit Nitroniumtetrafluoroborat bei ‐l 5°C und mit Natriumnitrat/Trifluoressigsäure bei 60°C in guten Ausbeuten in die entsprechenden Carbonylverbindungen (II) gespalten.
ChemInform Abstract: AN IMPROVED SYNTHESIS OF 2‐HYDROXY‐1,4‐NAPHTHOQUINONESULFONIC ACIDS
Authors: BAMFIELD P.
Published: April 2016

Die Oxidation der β‐Naphthol‐sulfonsäuren (I) in Gegenwart von Morpholin (II) liefert die Enamino‐chinone (III), aus denen mit Säuren die im Titel genannten Verbindungen (IV) freigesetzt werden.
ChemInform Abstract: A STUDY OF THE SYNTHESIS AND PROPERTIES OF (2.2.2.2)(1,2,4,5)CYCLOPHANE
Authors: GRAY R. , BOEKELHEIDE V.
Published: April 2016

Das aus dem Bismercaptomethylbenzol (I) und dem Dibrommethyldiester (II) zugängliche Dithiaparacyclophan (III) liefert bei der Photolyse das Paracyclophan (IV), aus dem über die Derivate (V)‐(VII) das Titelcyclophan (VIII) gewonnen wird.
ChemInform Abstract: REACTIONS WITH AZIRIDINES. XIX. IMPROVED SYNTHESIS OF 1,3‐DIACYL‐2‐PYRROLIDINONES
Authors: STAMM H. , BUDNY J.
Published: April 2016

Nach den bisher beschriebenen Methoden wurde die im Formelschema skizzierte Reaktion in Ethanol durchgeführt.
ChemInform Abstract: SYNTHESIS OF 4‐AMINO‐3‐ARYL‐1,2,4‐TRIAZOL‐5‐ONES
Authors: MILCENT R. , REDEUILH C.
Published: April 2016

Aus den Aryliminoether‐hydrochloriden (I) und Carbohydrazid (II) entstehen die Triazolone (III).
ChemInform Abstract: STUDIES ON THE SYNTHESIS OF 1,4‐OXAZINES, 2. EFFECT OF NITROGEN SUBSTITUENTS IN THE SYNTHESIS OF 3‐METHYL‐1,4‐BENZOXAZINES
Authors: BARTSCH H. , KROPP W. , PAILER M.
Published: April 2016

Ausgehend vom o‐Nitrophenoxyaceton (Ia) wird über die Dioxolane (IIa) und (IIb) das Azomethin (III) gebildet, während bei der katalytischen Hydrierung der Acetonderivate (Ib) bzw. (IVa) nicht das ungesättigte Cyclisierungsprodukt erhalten wurde.
ChemInform Abstract: REACTION OF SULFENE WITH N,N‐DISUBSTITUTED α‐(AMINOMETHYLENE) KETONES. VI. SYNTHESIS OF N,N‐DISUBSTITUTED 4‐AMINO‐3,4‐DIHYDRO‐6‐PHENYL‐1,2‐OXATHIIN 2,2‐DIOXIDES AND OF 4‐(METHYLPHENYLAMINO)‐3,4‐DIHYDRO‐5,6‐POLYMETHYLENE‐1,2‐OXATHIIN 2,2‐DIOXIDES
Authors: EVANGELISTI F. , SCHENONE P. , BARGAGNA A.
Published: April 2016

Während das Enaminoketon (I) nicht mit dem aus Methansulfochlorid erhaltenen Sulfen (III) reagiert, erhält man aus den Ketonen (II) die Addukte (IV) In gleicher Weise werden aus (V) die Addukte (VI) hergestellt, und die Abhängigkeit zur Ringgröße wird diskutiert.
ChemInform Abstract: POLYCONDENSED NITROGEN HETEROCYCLES. VII. 5,6‐DIHYDRO‐7H‐PYRROLO(1,2‐D)(1,4)BENZODIAZEPIN‐6‐ONES. A NOVEL SERIES OF ANNELATED 1,4‐BENZODIAZEPINES
Authors: AIELLO E. , DATTOLO G. , CIRRINCIONE G. , PLESCIA S. , DAIDONE G.
Published: April 2016

Die in bekannter Weise zugänglichen o‐Nitrophenyl‐diketone (I) reagieren mit Ammonacetat zu den Pyrrolen (II), die zu Aminen (III) reduziert und dann mit Brom‐acetyl‐ bromid (IV) zu (V) cyclokondensiert werden.
ChemInform Abstract: 2‐(AMINOMETHYL)PHTHALIMIDE. A NEW REAGENT FOR THE SYNTHESIS OF 2,4‐BENZODIAZEPINES
Authors: LAUER R. F. , ZENCHOFF G.
Published: April 2016

Aus Halogenmethyl‐phthalimid (I) entsteht mit Ammoniak das Substitutionsprodukt (II).
ChemInform Abstract: UNUSUAL LITHIUM TRANSFER REACTIONS IN LITHIUM‐SUBSTITUTED ORGANOSILICON COMPOUNDS. REINVESTIGATION OF THE REACTION OF 1,8‐DILITHIONAPHTHALENE WITH TRIMETHYLCHLOROSILANE
Authors: WROCZYNSKI R. J. , BAUM M. W. , KOST D. , MISLOW K. , VICK S. C. , SEYFERTH D.
Published: April 2016

Das Dilithionaphthalin (I) reagiert mit Trimethylchlorsilan (II) über die vermuteten Zwischenstufen (III) und (IV) zu einem Naphthyl‐trimethyldisilapentan (V).
ChemInform Abstract: SOME REACTIONS OF TRIS(α,α,Ω‐TRIHYDROPERFLUOROALKYL)PHOSPHITES
Authors: FOKIN A. V. , KOLOMIETS A. F. , KOMAROV K. A. , RAPKIN A. I. , PASEVINA K. I. , VERENIKIN O. V.
Published: April 2016

Die Phosphite (I) reagieren mit Methyliodid (II) erst beim Erhitzen auf 230‐240°C zum Teil unter Arbuzov‐Umlagerung zu den Verbindungen (III) und (IV).
ChemInform Abstract: 1,3,2‐OXAZA‐4‐PHOSPHOLINES WITH PHOSPHORUS(III)
Authors: BALITSKII YU. V. , KASUKHIN L. F. , PONOMARCHUK M. P. , GOLOLOBOV YU. G.
Published: April 2016

Das Brompinakolin (I) gibt mit primären Aminen (II) die α‐(N‐Alkyl)‐amino‐pinakolin‐chlorhydrate (IIIa) und (IIIb).
ChemInform Abstract: TRIBENZOCYCLOOCTATRIENYNE ‐ A DEHYDROCYCLOOCTATETRAENE SYSTEM
Authors: GUGEL H. , MEIER H.
Published: April 2016

Das Selendiazol (I) reagiert mit dem Pyranon (II) zum Tribenzocycloocten (III).
ChemInform Abstract: METAL ALKYLS AS PRECURSORS FOR POLYLITHIUM ORGANIC COMPOUNDS. A HIGH YIELD SYNTHESIS FOR “C2LI6”
Authors: SHIMP L. A. , LAGOW R. J.
Published: April 2016

Die Reaktion von Diethylquecksilber mit Li in der Dampfphase liefert nach 25 min die Titelverbindung in 99%iger Ausb. Zur Untersuchung des Reaktionsablaufs wurden eine Reihe anderer Alkylmetallverbindungen wie z.B. SnEt4 und PbEt4 mit Li‐Dampf umgesetzt, bei denen anhand der deuterierten Hydrolyseprodukte neben C2 Liö in nur 9 bis 10% Ausb. auch noch Dilithio‐ und Tetralithioethan sowie vorherrschend Ethyllithium nachgewiesen wurden.
ChemInform Abstract: COMPLEX FORMATION WITH 1,2‐BIS(O‐AMINOBENZYLIDENAMINO)ETHANE AS A NEUTRAL LIGAND
Authors: BREZINA F.
Published: April 2016

Die durch Kondensation von o‐Aminobenzaldehyd mit Ethylendiamin dargestellte Schiffsche Base reagiert in THF oder Dioxan mit Co‐Salzen zu den Komplexen (I).
ChemInform Abstract: A PAIR‐SPECIFIC OSMIUM REAGENT FOR POLYNUCLEOTIDES
Authors: FORD H. , CHANG C.‐H. , BEHRMAN E. J.
Published: April 2016

Os(VIII)‐Reagenzien zeigen kinetische Spezifität für Thyminreste in Polynucleotiden.
ChemInform Abstract: CHEMICAL CONVERSION OF URIDINE TO 8,5′‐O‐CYCLO‐3‐DEAZAGUANOSINE
Authors: TANAKA H. , UEDA T.
Published: April 2016

Aus der Ribofuranosyl‐imidazolincarbonsäure (Ia) erhält man mit Formaldehyd das Carbinol (Ib), das nach Acetylierung zu (IIa) zum Nitril (IIb) substituiert wird.
ChemInform Abstract: CHLORO COMPLEXES IN MOLTEN SALTS. 6. POTENTIOMETRIC AND VAPOR PRESSURE STUDY OF THE SYSTEM POTASSIUM CHLORIDE‐ALUMINUM CHLORIDE IN THE TEMPERATURE RANGE 275‐350°C
Authors: BREKKE P. B. , VON BARNER J. H. , BJERRUM N. J.
Published: April 2016

Lösungsenthalpie und ‐entropie für KCl in KAlCh‐Schmelzen werden aus potentiometrischen Bestimmungen in Verbindung mit Dampfdruckmessungen im Temp.‐Bereich 275‐350°C abgeleitet.
ChemInform Abstract: SYNTHESIS AND CHARACTERIZATION OF HOMOGENEOUS INTERMETALLIC IRON‐ZINC COMPOUNDS. PART II. THE Ξ PHASE
Authors: GELLINGS P. J. , DE BREE E. W. , GIERMAN G.
Published: April 2016

Mit Hilfe der liquidus‐hot‐pressing‐Methode (siehe vorst.
ChemInform Abstract: ANHYDROUS URANYL CROWN‐ETHER COMPLEXES. PROTON NUCLEAR MAGNETIC RESONANCE AND X‐RAY STUDY
Authors: FOLCHER G. , CHARPIN P. , COSTES R.‐M. , KELLER N. , DE VILLARDI G. C.
Published: April 2016

Uranylperchlorat reagiert in MeCN mit stöchiometrischen Mengen der Liganden 18‐Crown‐6 bzw. Dicyclohexyl‐18‐crown‐6 zu 1:1‐Komplexen, in denen das Uranylkation direkt an die O‐Atome des cyclischen Ethers gebunden ist.
ChemInform Abstract: A STUDY OF THE ELECTRONIC PROPERTIES OF M(CO)4DAB (M = CR, MO, W; DAB = DIAZABUTADIENE). II. CONFORMATIONAL CHANGE BELOW 200 K AS EVIDENCED FROM ABSORPTION AND RESONANCE RAMAN SPECTRA
Authors: STAAL L. H. , TERPSTRA A. , STUFKENS D. J.
Published: April 2016

Die Resonanzraman‐ und Elektronenabsorptions‐Spektren der Komplexe (I) in Alkanlösung oder in Gläsern bei Temp. unter 200 K zeigen die Existenz eines zweiten Isomeren, in dem die M(CO)4‐Einheit eine pseudo‐Cw‐Symmetrie besitzt.
ChemInform Abstract: OXIDATION OF AZIDE AND CYANIDE IONS IN ACETONITRILE AND ANODIC SUBSTITUTION OF ORGANIC COMPOUNDS BY AZIDE AND CYANIDE GROUPS
Authors: CAUQUIS G. , SERVE D.
Published: April 2016

Die elektrochemische Oxidation von Azid‐ und Cyanidionen und die Reduktion von Dicyan in Acetonitril wurden mit Hilfe von Voltammetrie, cyclischer Voltammetrie, potentia1‐ kontrollierter Coulometrie und UV‐Spektroskopie untersucht.
ChemInform Abstract: ELECTROCHEMICAL FORMATION OF BINUCLEOPHILES: SYNTHESIS OF OXA AND OXA‐AZA MACROCYCLIC HETEROCYCLES
Authors: BOUJLEL K. , SIMONET J.
Published: April 2016

Aus den 1,2‐Diketonen bzw. den entsprechenden Iminen (I) entstehen elektrochemisch die Dianionen (II), die in situ mit den Bistosylaten (III) unter Eliminierung des Tosyloxy‐Restes zu den Makrocyclen (IV) umgesetzt werden können.
ChemInform Abstract: NEIGHBORING ORTHO CARBOXYL GROUP PARTICIPATION AND α‐DEUTERIUM ISOTOPE EFFECTS IN THE HYDROLYSIS OF BENZYL BROMIDES
Authors: VITULLO V. P. , SRIDHARAN S. , JOHNSON L. P.
Published: April 2016

Die relativen Reaktivitäten von Benzyl‐, o‐ und p‐Carboxy‐benzylbromid in 50proz. wäßrigem Dioxan betragen 1, 3.8 und 0.3; der α‐D‐Isotopeneffekt der Hydrolyse von o‐Carboxy‐benzylbromid beträgt sowohl für die Carbonsäure als auch für deren Anion etwa 1.04, obwohl das Anion etwa 15 000mal reaktiver als die Säure ist.
ChemInform Abstract: RING CLEAVAGE OF CYCLIC AZO COMPOUNDS. 8. PHOTOCHEMICALLY INDUCED (4 + 2)‐ VERSUS (3 + 2)‐CYCLOREVERSION REACTION OF HEXASUBSTITUTED 2,3‐DIAZABICYCLO(3.1.0)HEX‐2‐ENES
Authors: EGE G. , GILBERT K. , HAHN B.
Published: April 2016

Bei der Photolyse der Diazabicyclohexene (I) entstehen über diskutierte Zwischenstufen die 2,3‐Diaza‐hexatriene (II) sowie zusätzlich die Verbindun‐ . gen (III), die auch aus ähnlichen Ausgangsverbindungen der Art (I) gebildet werden, ohne daß Vertreter der Art (II) entstehen.