bluuebunny/crossref_metadata_2025 huggingface dataset:
Sweet potato amylose and amylopectin with narrower distribution of molar mass and chain length obtained by a repeated retrogradation–hydrolysis procedure
Authors: Lian Xijun , Dong Shirui , Gao Kai , Kang Haiqi , Li Lin , Zhao Pei
Published: May 2016

The wide molar mass distribution of native starch creates obstacles in investigating the physicochemical characteristics of starch, such as retrogradation, because samples thought to be the same are actually compounds containing many chains with different molar masses. In this paper, the sweet potato amylose and amylopectin isolated from retrograded starch were treated with the retrogradation–hydrolysis method three times, and their physicochemical changes in this process were determined by absorbance of the starch–iodine complex, light microscopy, and molar mass and chain length distributions. The results showed that repeated retrogradation and hydrolysis caused the molar mass distribution of sweet potato amylose and amylopectin to reduce from 4.2 × 107–205 and 7971–223 to 6.0 × 104–730 and 4533–211 g mol−1, respectively. This retrogradation–hydrolysis cut the chain length distribution of sweet potato amylose from DP 9–35 to DP 3–13, but that of amylopectin remained unchanged. The double helix in sweet potato amylopectin will not form if the percentage of chain length with DP ≥ 4 is less than 25%. Repeated retrogradation and hydrolysis was an appropriate method to obtain amylose or amylopectin with a narrower molar mass distribution. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43849.
Effect of tungsten disulfide nanotubes on the thermomechanical properties of polypropylene‐graft‐maleic anhydride nanocomposites
Authors: Baklavaridis Apostolos , Tsiaoussis Ioannis , Panayiotou Costas , Zuburtikudis Ioannis
Published: May 2016

In this work, the influence of tungsten disulfide nanotubes (INT‐WS2) on the mechanical, thermal, structural, and morphological characteristics of Polypropylene‐graft‐maleic anhydride (PPGMA) nanocomposites is investigated. The addition of 5% INT‐WS2 increases the Young's Modulus by 28.5% and the storage modulus by 196.5% (in the rubbery state). Furthermore, the nanocomposites' thermal stability increases (up to 10 °C) with the addition of INT‐WS2. Transmission electron microscopy observations of the nanocomposites revealed that nanotubes' length is significantly reduced during processing and that nanotubes are well‐dispersed inside the PPGMA matrix. DSC results indicated that INT‐WS2 serve as nucleating agents in PPGMA. Moreover, AFM observations (coupled with DSC results) suggested the formation of fibrillar crystallites in the nanocomposites. This interfacial crystalline structure seems to interpose between the PPGMA and INT‐WS2. Thus, it plays a crucial role in the load transfer from the amorphous part of the polymer to the rather stiff INT‐WS2. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43887.
Magnetic Resonance Imaging–Detected Features of Inflammation and Erosions in Symptom‐Free Persons From the General Population
Authors: Mangnus L. , van Steenbergen H. W. , Reijnierse M. , van der Helm‐van Mil A. H. M.
Published: May 2016

Objective

The use of magnetic resonance imaging (MRI)–detected inflammation and joint damage in the diagnosis of rheumatoid arthritis is recommended by a European League Against Rheumatism imaging task force. This recommendation is based on the sensitivity of MRI and not on specificity. Knowledge of the prevalence of MRI‐detected features in symptom‐free persons, however, is pivotal when considering MRI for diagnostic purposes.

Methods

From November 2013 to December 2014, 196 symptom‐free persons of different ages were recruited from the general population. Inclusion criteria were no history of inflammatory arthritis, no joint symptoms during the previous month, and no clinically detectable arthritis on physical examination. Contrast‐enhanced MRIs of the dominant metacarpophalangeal (MCP), wrist, and metatarsophalangeal (MTP) joints were obtained using a 1.5T scanner and scored by 2 readers for synovitis, bone marrow edema, tenosynovitis, and erosions. For analyses at the joint level, MRI‐detected inflammation was considered present if both readers scored the image as positive.

Results

Of 193 persons scanned (ages 19–89 years), only 28% had no single inflammatory feature and 22% had no erosions. Primarily low‐grade features were observed. All MRI features were positively correlated with age (P < 0.001). Preferential locations for synovitis were MCP2, MCP3, the wrists, and MTP1. Bone marrow edema was frequently present in MCP3, the scaphoid, and MTP1. Tenosynovitis was infrequent, except for in the extensor carpi ulnaris. Preferential locations for erosions were MCP2, MCP3, MCP5, the distal ulna, MTP1, and MTP5. Tables with age‐, location‐, and inflammation type–dependent frequencies were constructed. Simultaneous colocalized presence of synovitis, bone marrow edema, tenosynovitis, or erosions occurred.

Conclusion

MRI‐detected inflammation and erosions are prevalent in symptom‐free persons from the general population, especially at older ages and at preferential locations.
Anti‐GAPDH Autoantibodies as a Pathogenic Determinant and Potential Biomarker of Neuropsychiatric Diseases
Authors: Delunardo Federica , Soldati Denise , Bellisario Veronica , Berry Alessandra , Camerini Serena , Crescenzi Marco , Alessandri Cristiano , Conti Fabrizio , Ceccarelli Fulvia , Francia Ada , Valesini Guido , Cirulli Francesca , Siracusano Alberto , Siracusano Alessandra , Niolu Cinzia , Alex Rubino Ivo , Ortona Elena , Margutti Paola
Published: May 2016

Objective

To investigate the potential role of circulating autoantibodies specific to neuronal cell surface antigens in the pathophysiology of neuropsychiatric disorders.

Methods

Two different kinds of immunoscreening approaches were used to identify autoantigens associated with neuropsychiatric disorders in the serum of patients with schizophrenia. The presence of autoantibodies specific to the identified autoantigens was then tested in patients with various psychiatric disorders and in patients with systemic lupus erythematosus (SLE) and concomitant neuropsychiatric manifestations. Furthermore, the potential pathogenic role of these autoantibodies was assessed both in vitro and in vivo.

Results

GAPDH was identified as a novel autoantigen associated with neuropsychiatric disorders. Serum anti‐GAPDH IgG was detected in the serum of 51% of patients with schizophrenia and 50% of patients with major depression. Moreover, SLE patients with comorbid psychiatric manifestations presented significantly higher serum levels of anti‐GAPDH antibodies than did SLE patients without psychiatric manifestations (P = 0.004 by chi‐square test). Of note, a significant positive correlation (R = 0.48, P = 0.0049, by Spearman's rank correlation test) was found between the levels of serum anti‐GAPDH antibodies and cognitive dysfunction in patients with SLE. In vitro analysis of the effects of purified human anti‐GAPDH autoantibodies on SH‐SY5Y cells showed an immediate neurite retraction. Finally, in vivo administration of anti‐GAPDH autoantibodies in the right cerebral ventricle of C57BL/6J mice resulted in specific behavioral changes associated with a detrimental cognitive and emotional profile.

Conclusion

Overall, these data suggest that anti‐GAPDH autoantibodies play a role in the pathogenesis of neuropsychiatric disorders, thus representing a potentially promising tool for the screening of individual vulnerability to these disabling conditions.
Geotechnik vor 100 Jahren am Beispiel des Baus der neuen Seeschleuse in Emden
Authors: Clasmeier Hans‐Dieter
Published: May 2016

Von 1907–1913 wurde in Emden die derzeit weltweit größte Seeschleuse mit 260 m Länge und 40 m Breite gebaut. Die dort eingesetzten Bautechniken wurden richtungsweisend für weitere Schleusenneubauten an den nordwesteurop äischen Küsten. Bereits die Eindeichung einer 560 ha großen Wattfläche zwischen der Stadt Emden und der Ems, auf der die Schleuse entstehen sollte, stellte eine große Herausforderung an die Hafenplaner dar. Mit den klassischen Möglichkeiten im Erdbau wäre die Herstellung der etwa 4 ha großen Baugrubensohle und ein Aushub von nahezu 1 Mio. m3 Boden sehr aufwändig geworden, neue Techniken waren zu entwickeln. Neben Nass aushub mittels Schwimmbagger und Einsatz eines Senkkas tens zur Herstellung der Schleusensohle wurde auch eine großräumige Vereisung einer Baugrubenumschließung diskutiert. Schließlich entschied sich der Bauleiter Willy Zander zum Aufbau einer Grundwasserabsenkungsanlage, um dann die Baugrube im Trockenen auszuheben und die Sohle und die aufgehenden Wände der Schleuse sicher und sauber herzustellen.

Dank einer guten Dokumentation von Planung, Bauablauf und Baubestand kann heute die Baumaßnahme gut nachvollzogen werden. Der folgende Beitrag schildert die wichtigsten grundbaulichen Schritte zur Entstehung dieses Meisterwerks der Ingenieurkunst. Der Leser wird in den Baualltag am Anfang des 20. Jahrhundert versetzt und kann sich ein Bild über die zur Jahrhundertwende auftretenden technischen und gesellschaftlichen Schwierigkeiten machen.
An attempt for a mathematical foundation and evaluation of MACS, a method for multidimensional automatical cluster detection
Authors: Von Eye A. , Wiesing M.
Published: May 2016

MACS, a method for the Multivariate Automatical Cluster Search, is described. It searches for local density centers by means of cuboids or ellipsoids, the diameters of which are built by the confidence intervals for the standard deviations of all predicting variables. This is done by iterative translation of the center of the neighbourhood U in direction of the centroid of his elements until a distance smaller than the one chosen a priori is reached. After this, U is varied in his diameter. The resulting values for the density and the centroid are utilized for the qualifications of U. MACS is tested by a synthetical data set and a plasmode.
Disulfide–bridging PEGylation during refolding for the more efficient production of modified proteins
Authors: Ginn Claire , Choi Ji‐won , Brocchini Steve
Published: May 2016

Proteins that are modified by chemical conjugation require at least two separate purification processes. First the bulk protein is purified, and then after chemical conjugation, a second purification process is required to obtain the modified protein. In an effort to develop new enabling technologies to integrate bioprocessing and protein modification, we describe the use of disulfide‐bridging conjugation to conduct PEGylation during protein refolding. Preliminary experiments using a PEG‐mono‐sulfone reagent with partially unfolded leptin and unfolded RNAse T1 indicated that the cysteine thiols underwent disulfide‐bridging conjugation to give the PEGylated proteins. Interferon‐β1b (IFN‐β1b) was then expressed in E.coli as inclusion bodies and found to undergo disulfide bridging‐conjugation during refolding. The PEG‐IFN‐β1b was isolated by ion‐exchange chromatography and displayed in vitro biological activity. In the absence of the PEGylation reagent, IFN‐β1b refolding was less efficient and yielded protein aggregates. No PEGylation was observed if the cysteines on IFN‐β1b were first modified with iodoacetamide prior to refolding. Our results demonstrate that the simultaneous refolding and disulfide bridging PEGylation of proteins could be a useful strategy in the development of affordable modified protein therapeutics.
CRISPR‐based genome editing and expression control systems in Clostridium acetobutylicum and Clostridium beijerinckii
Authors: Li Qi , Chen Jun , Minton Nigel P. , Zhang Ying , Wen Zhiqiang , Liu Jinle , Yang Haifeng , Zeng Zhe , Ren Xiaodan , Yang Junjie , Gu Yang , Jiang Weihong , Jiang Yu , Yang Sheng
Published: May 2016

Solventogenic clostridia are important industrial microorganisms that produce various chemicals and fuels. Effective genetic tools would facilitate physiological studies aimed both at improving our understanding of metabolism and optimizing solvent productivity through metabolic engineering. Here we have developed an all‐in‐one, CRISPR‐based genome editing plasmid, pNICKclos, that can be used to achieve successive rounds of gene editing in Clostridium acetobutylicum ATCC 824 and Clostridium beijerinckii NCIMB 8052 with efficiencies varying from 6.7% to 100% and 18.8% to 100%, respectively. The plasmid specifies the requisite target‐specific guide RNA, the gene encoding the Streptococcus pyogenes Cas9 nickase and the genome editing template encompassing the gene‐specific homology arms. It can be used to create single target mutants within three days, with a further two days required for the curing of the pNICKclos plasmid ready for a second round of mutagenesis. A S. pyogenes dCas9‐mediated gene regulation control system, pdCASclos, was also developed and used in a CRISPRi strategy to successfully repress the expression of spo0A in C. acetobutylicum and C. beijerinckii. The combined application of the established high efficiency CRISPR‐Cas9 based genome editing and regulation control systems will greatly accelerate future progress in the understanding and manipulation of metabolism in solventogenic clostridia.
Teaching biochemistry online at Oregon State University
Authors: Ahern Kevin
Published: May 2016

A strategy for growing online biochemistry courses is presented based on successes in ecampus at Oregon State University. Four free drawing cards were key to the effort—YouTube videos, iTunes U online free course content, an Open Educational Resource textbook—Biochemistry Free and Easy, and a fun set of educational songs known as the Metabolic Melodies. © 2016 by The International Union of Biochemistry and Molecular Biology, 45(1):25–30, 2017.
Accumulation of apoptosis‐insensitive human bone marrow‐mesenchymal stromal cells after long‐term expansion
Authors: Jeong Sin‐Gu , Cho Goang‐Won
Published: May 2016

Cells undergo replicative senescence during in vitro expansion, which is induced by the accumulation of cellular damage caused by excessive reactive oxygen species. In this study, we investigated whether long‐term‐cultured human bone marrow mesenchymal stromal cells (MSCs) are insensitive to apoptotic stimulation. To examine this, we established replicative senescent cells from long‐term cultures of human bone marrow MSCs. Senescent cells were identified based on declining population doublings, increased expression of senescence markers p16 and p53 and increased senescence‐associated β‐gal activity. In cell viability assays, replicative senescent MSCs in late passages (i.e. 15–19 passages) resisted damage induced by oxidative stress more than those in early passages did (i.e. 7–10 passages). This resistance occurred via caspase‐9 and caspase‐3 rather than via caspase‐8. The senescent cells are gradually accumulated during long‐term expansion. The oxidative stress‐sensitive proteins ataxia‐telangiectasia mutated and p53 were phosphorylated, and the expression of apoptosis molecules Bax increased, and Bcl‐2 decreased in early passage MSCs; however, the expression of the apoptotic molecules did less change in response to apoptotic stimulation in late‐passage MSCs, suggesting that the intrinsic apoptotic signalling pathway was not induced by oxidative stress in long‐term‐cultured MSCs. Based on these results, we propose that some replicative senescent cells may avoid apoptosis signalling via impairment of signalling molecules and accumulation during long‐term expansion. Copyright © 2016 John Wiley & Sons, Ltd.
Carotid stenting versus endarterectomy for the treatment of carotid artery stenosis: Contemporary results from a large single center study
Authors: Meller Stephanie M. , Salim Al‐Damluji Mohammed , Gutierrez Alejandra , Stilp Erik , Mena‐Hurtado Carlos
Published: May 2016

Objective

To compare the complication rates associated with carotid endarterectomy (CEA) versus carotid artery stenting (CAS).

Background

Carotid stenosis is a well‐known cause of stroke and increased mortality. The safety of carotid revascularization may be related to symptom status, medical comorbidities, use of embolic protection devices, as well as operator experience and these factors may vary across patient populations within a single operating center.

Methods

We retrospectively analyzed patients with carotid artery stenosis admitted to our hospital for carotid revascularization between January 1, 2007 and December 1, 2013. The primary end point was a composite endpoint of periprocedural death, stroke, and myocardial infarction (MI).

Results

Of the 718 patients admitted for carotid revascularization 525 (73.1%) underwent CEA and 193 (26.9%) underwent CAS. Both groups demonstrated similar rates of the composite endpoint, MI, and death; the stenting group demonstrated a higher rate of stroke (4.2% vs. 1.3%; P = 0.020). Adjusting for baseline medical comorbidities and symptom status mitigated this difference (P = 0.091 and 0.113, respectively). When stratified by department performing CAS, there was a significant difference in the occurrence of stroke (P = 0.033), which likewise disappeared in the multivariate regression analysis.

Conclusion

The risk of the composite endpoint did not differ significantly between those undergoing CAS versus CEA. The stenting group demonstrated a higher rate of periprocedural stroke, which was also apparent when patients were stratified by stenting department. These differences were likely driven by variation in baseline medical comorbidities and symptom status. © 2016 Wiley Periodicals, Inc.
Multistage Countercurrent Crystallization for the Separation of Solid Solutions
Authors: Münzberg Stephan , Lorenz Heike , Seidel‐Morgenstern Andreas
Published: May 2016

While one crystallization step can be sufficient to provide pure components in case of eutectic systems, multistage operation is required to resolve solid solutions. A recently published equilibrium stage model was adopted here and generalized to simplify the description of the corresponding solid‐liquid equilibrium (SLE). The equilibria of the system potassium sulfate/ammonium sulfate/water were studied at different temperatures. The existence of a controversially discussed miscibility gap below 25 °C could not be confirmed. Using the equilibrium stage model and the studied specific SLE data, process variants considering different evaporation strategies were simulated.
A Catalyst‐Enabled Diastereodivergent Aza‐Diels–Alder Reaction: Complementarity of N‐Heterocyclic Carbenes and Chiral Amines
Authors: Rong Zi‐Qiang , Wang Min , Chow Chi Hao Eugene , Zhao Yu
Published: May 2016

Highly efficient and diastereodivergent aza‐Diels–Alder reactions have been developed to access either diastereomeric series of benzofuran‐fused δ‐lactams and dihydropyridines in nearly perfect stereoselectivity (d.r. >20:1, >99 % ee for all examples). The complementarity of N‐heterocyclic carbene and chiral amine as the catalyst was demonstrated for the first time, together with an excellent level of catalytic efficiency (1 mol % loading).
Ultrathin Coating of Confined Pt Nanocatalysts by Atomic Layer Deposition for Enhanced Catalytic Performance in Hydrogenation Reactions
Authors: Wang Meihua , Gao Zhe , Zhang Bin , Yang Huimin , Qiao Yan , Chen Shuai , Ge Huibin , Zhang Jiankang , Qin Yong
Published: May 2016

Invited for the cover of this issue is the group of Yong Qin at the Chinese Academy of Sciences. The image depicts the main features of the designed catalyst, which are the Al2O3 nanotubes, confined Pt nanoparticles, and ultrathin Al2O3 coats. Read the full text of the article at 10.1002/chem.201601039.
Efficient Trapping of 1,2‐Cyclohexadienes with 1,3‐Dipoles
Authors: Lofstrand Verner A. , West Frederick G.
Published: May 2016

1,2‐Cyclohexadienes are transient intermediates that undergo rapid dimerization and intermolecular trapping with activated olefins and heteroatomic nucleophiles. Fluoride‐mediated desilylative elimination of readily accessible 6‐silylcyclohexene‐1‐triflates allows the mild, chemoselective, and functional‐group tolerant generation of cyclic allene intermediates, which undergo efficient trapping reactions with stable 1,3‐dipoles. The reactions proceed with high levels of both regio‐ and diastereoselectivity. The reaction of cyclic allenes with azides is accompanied by the facile loss of dinitrogen, resulting in the formation of tetrahydroindoles or polycylic aziridines depending on the azide employed.
ChemInform Abstract: Molten Lithium Carbonate‐Sodium Carbonate‐Potassium Carbonate Eutectic: Electronic Spectroscopy of First‐row Transition Metal Compounds.
Authors: CARTHEY N. A. , KERRIDGE D. H.
Published: May 2016

Despite the strong Lux‐Flood basicity of the title carbonate melt, dilute solutions of the transition metals chromate(VI), cobalt(II), nickel(II), and copper(II) can be formed, stable enough for absorption spectra to be readily obtained.
ChemInform Abstract: Short‐Range Order in Fluorite‐Related Ca1‐xM(IV)xF2+2x (M(IV): U, Zr) Solid Solutions with Excess of Anions.
Authors: LAVAL J. P. , MIKOU A. , FRIT B. , ROULT G. , PAMETIER J.
Published: May 2016

The defect structure of the title solid solutions has been investigated by powder neutron diffraction.
ChemInform Abstract: Electrochemical and Structural Characteristics of Molybdic Acid as a New Cathode Material for Nonaqueous Lithium Batteries.
Authors: KUMAGAI NAOAKI , KUMAGAI NOBUKO , TANNO K.
Published: May 2016

The XRD pattern of the material studied are in agreement with those of the C‐phase of molybdic acid, x((NH4)2O)·MoO3·yH2O (x = 0.075‐0.042, y = 0.400‐0.043).
ChemInform Abstract: Aluminum Deposition and Dissolution in Aluminum Chloride‐n‐Butylpyridinium Chloride Melts
Authors: LAI P. K. , SKYLLAS‐KAZACOS M.
Published: May 2016

(AlCl3:BuPyCl) has been investigated by chronopotentiometry at ambient temp. using glassy carbon and tungsten electrodes.
ChemInform Abstract: ESCA Characterization of Supported Manganese Oxides. Part 2. Effect of Reduction with CO and Reoxidation with Oxygen.
Authors: BALTANAS M. A. , KATZER J. R. , STILES A. B.
Published: May 2016

The XPS results obtained for MnOx supported on Al2O3, TiO2, or CeO2 show that CO and O2 treatments have no influence on the high dispersity of the MnOx overlayers and that the extent of electron withdrawal from Mnn+ ions by the carrier is a unique property of each support, regardless of oxidizing or reducing conditions.
ChemInform Abstract: The Photochemistry in Excited States of van der Waals Complexes
Authors: JOUVET C. , BOIVINEAU M. , DUVAL M. C. , SOEP B.
Published: May 2016

has been studied by laser spectroscopy in a supersonic jet.
ChemInform Abstract: Germanates of Alkali and Rare Earth Elements.
Authors: CHIGAREVA O. G. , GREBENSHCHIKOV R. G. , ROMANOV D. P.
Published: May 2016

The novel title compounds NaMGe2O6 (M: Ho, Er, Tm, Yb, Lu) are prepared from Na2CO3, M2O3 and GeO2.
ChemInform Abstract: In situ IR Spectroelectrochemistry Studies of Ferrocene, (Rh2(dimen)2(dppm)2)(PF6)2, and (mes)Cr(CO)3 (dimen: 1,8‐Diisocyanomenthane; dppm: Bis(diphenylphosphinomethane); mes: Mesitylene). A Useful Technique for the Characterization of Electrochemically Generated Organometallic Species.
Authors: BULLOCK J. P. , BOYD D. C. , MANN K. R.
Published: May 2016

In order to measure the IR spectral changes that result during the electrolysis of the title complexes, the use of an optically transparent thin‐layer electrochemical (OTTLE) cell with a gold minigrid electrode is demonstrated.
ChemInform Abstract: Chiral Induction in Photochemical Reactions. Part 7. Double Stereodifferentiation in the (2 + 2) Photocycloaddition.
Authors: HERZOG H. , KOCH H. , SCHARF H.‐D. , RUNSINK J.
Published: May 2016

The bimolecular photoreactions of the chiral cyclenone carboxylates (I) with the optically active ketene acetal (II) cause in each case a double induction for the resulting cyclobutane derivatives (III) and (IV).
ChemInform Abstract: Carbon‐Carbon Double Bond Cleavage Using Solid‐Supported Potassium Permanganate on Silica Gel.
Authors: FERREIRA J. T. B. , CRUZ W. O. , VIEIRA P. C. , YONASHIRO M.
Published: May 2016

Silica gel‐supported potassium permanganate cleaves the polycyclic alkenes (I), (III), and (V) or the alkene (VII) under very mild conditions to give the carboxylic acids (II), (IV), (VI), and (VIII).
ChemInform Abstract: Methylenecyclopropane Rearrangement as a Probe for Free Radical Substituent Effects. σ‐Values for Commonly Encountered Conjugating and Organometallic Groups.
Authors: CREARY X. , MEHRSHEIKH‐MOHAMMADI M. E. , MCDONALD S.
Published: May 2016

The kinetics of the thermal rearrangement of the dimethylmethylenecyclopropanes (III) are investigated.
ChemInform Abstract: syn‐ and anti‐Dioxasesquinorbornenes. Singlet Oxidation of Exocyclic s‐cis‐1,3‐Butadienes.
Authors: CLENNAN E. L. , MATUSUNO K.
Published: May 2016

Photochemical singlet‐oxygenation of the isodicyclopentadiene derivatives (I) at a low temperature gives the peroxides (II) and (III) via a (4 + 2)‐cycloaddition process.
ChemInform Abstract: Nickel(0)‐Catalyzed Formation of Carbocyclic Amides from α,ω‐Dienes and Phenyl Isocyanate.
Authors: HERNANDEZ E. , HOBERG H.
Published: May 2016

Phenyl isocyanate (II) reacts with 1,5‐hexadiene (I) in the presence of the Ni(0) complex (III) and the phosphine (IV) or with the complex (VII), producing the regioisomeric azanickelacyclopentane complexes (V) and (VI) which are hydrolyzed to form the amides (VIII) and (IX).
ChemInform Abstract: Asteranes. Part 19. Nonacyclo(10.8.0.02,11.04,9.04,19.06,17.07,16.09,14.014,19)icosane, a Double Tetraasterane.
Authors: HOFFMANN V. T. , MUSSO H.
Published: May 2016

The title compound (IIIc) is prepared starting from the anhydride (I).
ChemInform Abstract: Diastereoselective Oxidations of a Thioether Appended with a Neighboring Carboxylic Acid Group.
Authors: GLASS R. S. , PETSOM A. , WILSON G. S.
Published: May 2016

The (methylthio)bicyclo(2.2.1)heptanecarboxylic acid (Ia) and the corresponding methyl carboxylate (Ib) are diastereoselectively oxidized by the bromine complex of 1,4‐diazabicyclo(2.2.2)octane to give the sulfoxides (IIa) and (IIIb) as the main products.
ChemInform Abstract: Reaction of 2‐Aryl‐3‐(N,N‐dimethylamino)‐1‐propenes and Their Corresponding Quaternary Ammonium Salts with Organometallic Species and Reducing Agents.
Authors: GUPTON J. T. , LAYMAN W. J.
Published: May 2016

Reaction of the methoxyphenyldimethylaminopropene (I) with the organometallic compounds (II) gives the styrenes (IIIb) and (IIIc).
ChemInform Abstract: Secondary Mannich Bases via Trimethylsilyl Trifluoromethanesulfonate Promoted Addition of Silyl Enol Ethers of Schiff Bases.
Authors: PILLI R. A. , RUSSOWSKY D.
Published: May 2016

The reaction of the activated azomethines (I) with the silyl enol ethers (II) is promoted by trimethylsilyl trifluoromethanesulfonate to yield the N‐aryl‐β‐amino ketones (III).
ChemInform Abstract: Retro‐Ene Reactions of N‐Substituted Derivatives of 4‐Aza‐2,2‐dimethyl‐ 1‐phenyl‐3‐butenone and Related Compounds.
Authors: ARMESTO D. , HORSPOOL W. M. , PEREZ‐OSSORIO R. , RAMOS A.
Published: May 2016

The imino ketones (I) are cleaved in refluxing methanol (II) to produce methyl benzoate (IV) and the imine (V) via retro‐ene reaction of the intermediate hemiacetal (III).
ChemInform Abstract: Sodium Metal Promoted Condensations of Carbamates.
Authors: CRUMRINE D. S. , DIESCHBOURG T. A. , O'TOOLE J. G. , TASSONE B. A. , VANDEBURG S. C.
Published: May 2016

Treatment of the ethyl carbamates (I) with sodium gives the oxalic diamides (II).
ChemInform Abstract: Asymmetrically Substituted Calix(4)arenes.
Authors: BOEHMER V. + , MERKEL L. , KUNZ U.
Published: May 2016

The bis(methylene)‐bridged triphenol (I) reacts with the bis(bromomethyl)phenols (II) in the presence of titanium tetrachloride to form the calixarenes (IIIa) and (IIIb) respectively.
ChemInform Abstract: An Improved, Simple Synthesis of 3‐Methyl‐2‐(4‐methylphenyl)cyclopenten‐2‐one: An Important Intermediate in Cuparene Synthesis.
Authors: BALLINI R. , PETRINI M. , MAROTTA E.
Published: May 2016

The nitrostyrene (I) is converted to the nitroethyltoluene (II) by boranate reduction.
ChemInform Abstract: Aldehyde and Ketone Epoxidation with Trimethylsulfonium Bromide in a Slightly Hydrated Solid‐Liquid Medium.
Authors: BOUDA H. , BORREDON M. E. , DELMAS M. , GASET A.
Published: May 2016

Trimethylsulfonium bromide (II) is employed in the conversion of the ketones (I) or the aldehydes (IV) into the oxiranes (III) and (V) respectively.
ChemInform Abstract: Concise Asymmetric Synthesis of (5S,6S)‐Aeginetolide and (5S)‐Dihydroactinidiolide.
Authors: CAIN C. M. , SIMPKINS N. S.
Published: May 2016

The dimethylcyclohexanone (I) is allowed to react with a chiral lithium amide and chlorotrimethylsilane (II) to form the silyl enol ether (III) which is oxidatively cleaved, yielding the hydroxycyclohexanone (IV).
ChemInform Abstract: A New Synthesis of 2‐Substituted Benzofurans and Benzothiophenes: Novel Fragmentation Reactions of Simple Alkyl Groups.
Authors: AITKEN R. A. , BURNS G.
Published: May 2016

2‐Methoxy and 2‐methylthiobenzoyl chloride (I) are coupled with the phosphoranes (II) to form the β‐oxo ylides (III) which are thermolyzed to give the acetylenes (IV) as the primary products.
ChemInform Abstract: Heterocyclic Systems Containing Bridgehead Nitrogen Atom: Part 59. Reaction of 4,6‐Dichloro‐2‐mercaptobenzimidazole with Chloroacetic Acid and 1,2‐Dibromoethane.
Authors: BINDAL V. , PUJARI H. K.
Published: May 2016

The title compound (III) is obtained starting from the nitroaniline (I) which, in turn, can be prepared from 2,4‐dichloroaniline.
ChemInform Abstract: Heterocyclic Systems Containing Bridgehead Nitrogen Atom: Part 57. Syntheses of 2,5‐Disubstituted Thiazolo(3,2‐b)‐s‐triazoles and 3,5‐Disubstituted Thiazolo(2,3‐c)‐s‐triazoles.
Authors: BINDAL V. , SHARMA B. R. , NARAYAN S. , HANDA R. N. , PUJARI H. K.
Published: May 2016

Starting from the thiosemicarbazides (I) the ketones (IV) are prepared via the triazoles (II).
ChemInform Abstract: Oxidative Dimerization of 2,4‐Diarylcyclohexa(b)thiopyrylium Salts.
Authors: KLIMENKO S. K. , IVANOVA N. N. , SOROKIN N. N.
Published: May 2016

The reaction of the tetrafluoroborates (I) with potassium hexacyanoferrate‐III in the presence of a base is studied for the first time.
ChemInform Abstract: Antifibrinolytic Activity of the Reaction Products of Nicotinic Acid with 6‐Aminohexanoic‐, p‐Aminomethylbenzoic‐, and trans‐4‐Aminomethylcyclohexanecarboxylic Acid.
Authors: ZABELIN N. N. , MOISEENOK A. G. , BULANOVA L. N. , KOPELEVICH V. M. , GUNAR V. I.
Published: May 2016

Condensation reaction of nicotinoyl chloride (I) with the aminocarboxylic acids (II) yields the nicotinoylaminocarboxylic acids (III).
ChemInform Abstract: Periselectivity in Cycloadditions to Vinyl Methyl Ketene and Structurally Related Vinyl Ketene Imines.
Authors: BARBARO G. , BATTAGLIA A. , GIORGIANNI P.
Published: May 2016

The vinylic ketenes or ketene imines (I) react with strongly electrophilic agents such as tetracyanoethylene (II) or phenyltriazolinedione (IV) to yield the 1,4‐cycloadducts (III) or (V).
ChemInform Abstract: Diastereoselective 1,2‐Addition of Lithiated N‐(Trialkylsilyl)methylphenylsulfoximines to Aldehydes: Preparation of 1,4,3‐Oxathiazin‐2(6H)one 4‐Oxides as Novel Cyclic Sulfoximines.
Authors: HWANG K.‐J. , LOGUSCH E. W. , BRANNIGAN L. H. , THOMPSON M. R.
Published: May 2016

The N‐(trimethylsilyl)sulfoxime (I) is lithiated with BuLi and then allowed to react with the aldehydes or ketones (II), forming the alcohols (III).
ChemInform Abstract: Indolo(3,2‐d) (2,3)benzodiazepine Derivatives.
Authors: HIREMATH S. P. , BADAMI P. S. , HIREMATH D. M. , PUROHIT M. G.
Published: May 2016

The title compounds (V), which represent a hitherto unknown ring system, can be prepared starting from the indoles (I) via the hydrazides (III).
ChemInform Abstract: The Reaction of (Trifluoromethyl)dialkylaminoboranes with HF, HCl, and HBr. X‐Ray Structure Investigation of the Aminoboranes (CF3)2B(X)NHMe2, X = F and OH.
Authors: BRAUER D. J. , BUERGER H. + , PAWELKE G. , WEUTER W. , WILKE J.
Published: May 2016

Condensing dry hydrogen chloride or hydrogen bromide into a ethereal solution of (I) yields the boronium salts (II).
ChemInform Abstract: Boron‐Nitrogen Compounds. Part 114. Hydrazine Complexes of B‐Triorganylboroxins.
Authors: DAS M. K. , MARIATEGUI J. F. , NIEDENZU K.
Published: May 2016

The B‐triethyl‐ and ‐triphenylboroxins form the 1:1 molar complexes (I) with the hydrazine derivatives.
ChemInform Abstract: Formation of 2,5‐Dihydroselenophenes and 1,3‐Dienes from Diketo Selenides by Reduction with Low‐Valent Titanium Reagents.
Authors: NAKAYAMA J. , IKUINA Y. , MURAI F. , HOSHINO M.
Published: May 2016

Reduction of the diketo selenides (I) with TiCl4/Zn‐powder in refluxing THF leads to the formation of the 2,5‐dihydroselenophenes (II) and the 1,3‐dienes (III).
ChemInform Abstract: Polylithiumorganic Compounds. Part 6. cis‐ and trans‐1,2‐Dilithioethylene.
Authors: MAERCKER A. , GRAULE T. , DEMUTH W.
Published: May 2016

The lithiation of (Ia) or (Ib) to give (Va) or (Vb) can be carried out by means of a metal exchange in order to avoid steric hindrance at a fivefold coordinated Sn.
ChemInform Abstract: From Germaphosphene to Germaphosphetene.
Authors: ANDRIANARISON M. , COURET C. , DECLERCQ J.‐P. , DUBOURG A. , ESCUDIE J. , SATGE J.
Published: May 2016

The triarylgermaphosphene (I) is subjected to thermolysis, yielding the benzogermaphosphetene (II).
ChemInform Abstract: Synthesis and Characterization of Ethylphenylstannylene Derivatives of Ethylene Glycol, Cytidine, and 3,5‐Diiodosalicylic Acid.
Authors: GIELEN M. , MANCILLA T. , RAMHARTER J. , WILLEM R.
Published: May 2016

Ethyltriphenyltin (I) is brominated to yield ethylphenyltin dibromide (II) which is hydrolyzed forming ethylphenyltin oxide (III).
ChemInform Abstract: Formation of Reduced Species from Dichlorobis(pentamethylcyclopentadienyl)uranium(IV), Dichlorobis(pentamethylcyclopentadienyl)thorium(IV), Chloro(pentamethylcyclopentadienyl)magnesium(II), and Chloroisopropylmagnesium(II) by Pulse Radiolysis of Their Solutions in Tetrahydrofuran.
Authors: KOULKES‐PUJO A. M. , LE MARECHAL J. F. , DORMOND A. , FOLCHER G.
Published: May 2016

By use of pulse radiolysis technique, the compounds (η5‐C5Me5)2MCl2 (M: Th, U), (η5‐C5Me5)MgCl, iPr‐MgCl, and ZnCl2 are reduced to M(III), Mg(I), and Zn(I) species by the solvated electrons (e‐ THF) created in THF solution.
ChemInform Abstract: α‐Alkylation of Carbonyl Compounds Using 1‐Acetoxy‐1‐ferrocenylethane.
Authors: REETZ M. T. , SAUERWALD M.
Published: May 2016

Acetylferrocene (I) is reduced to form the alcohol (II) which is converted to the acetate (IV) or the chloride (V).
ChemInform Abstract: Reaction of (Ni(H2O)2(N,N′‐Me2‐en)2)2+ with Carbohydrates. Synthesis and Characterization of a Novel μ‐Mannofuranoside Binuclear Nickel(II) Complex Containing N‐Glycosides.
Authors: TANASE T. , KURIHARA K. , YANO S. , KOBAYASHI K. , SAKURAI T. , YOSHIKAWA S. , HIDAI M.
Published: May 2016

The unprecedented binuclear Ni(II) complex (I) containing two types of N‐glycosides formed from N,N'‐dimethylethylenediamine (Me2‐en) and D‐mannose is synthesized by 1:3 molar reaction from (Ni(OH2)2(Me2‐en)2)X2 with D‐mannose in MeOH at 65 °C. The structure of the dichloride (Ia)·2 MeOH·H2O (space group P212121, Z=4) is determined by X‐ray analysis.
ChemInform Abstract: Pentacyanoruthenate(II)‐Pentaammineruthenium(II/III) Binuclear Complexes Bridged by Cyanogen, Cyanide, and 4,4′‐Bipyridine.
Authors: SIDDIQUI S. , HENDERSON W. W. , SHEPHERD R. E.
Published: May 2016

The title complexes (III), (VI) or (VII) are prepared and characterized by spectroscopic and differential‐pulse voltammetric methods.
ChemInform Abstract: Asymmetric Catalysis. Part 33. New Optically Active Phospholanes Derived from Tartaric Acid.
Authors: BRUNNER H. , SIEVI R.
Published: May 2016

Reaction of the 1,4‐ditosylates (I) with NaPH2 (II) or dilithium phenylphosphide (IV) gives the cyclic phosphines (III) or (V).
ChemInform Abstract: Steroids and Related Natural Products. Part 104. Bufadienolides. Part 36. Synthesis of Bufalitoxin (Ia) and Bufotoxin (Ib).
Authors: PETTIT G. R. , KAMANO Y. , DRASAR P. , INOUE M. , KNIGHT J. C.
Published: May 2016

(CHI); CH ‐NH‐ co ‐ (CHI); CO‐O Steroids and Related Natural Products.
ChemInform Abstract: Phenacyl‐Directed Alkylation of Imidazoles: A New Regiospecific Synthesis of 3‐Substituted L‐Histidines.
Authors: CHIVIKAS C. J. , HODGES J. C.
Published: May 2016

L‐Histidine methyl ester dihydrochloride (I) is cyclized and then N‐alkylated with phenacyl bromide (III) to give the imidazopyrimidinium bromide (IV).
ChemInform Abstract: Phosphorus Oxychloride‐Catalyzed Synthesis of Glucosides.
Authors: BHAT V. S. , SINHA B. , BOSE J. L.
Published: May 2016

POCl3(anhydrous substance as well as moist samples containing 1% and 5% water) is found to be a useful catalyst for the synthesis of both the α‐ and β‐anomer of acetylated aryl, alkyl and arylalkyl D‐glucosides from the corresponding alcohols and fully acetylated sugars.
ChemInform Abstract: The Pyranoside Ring as a Nucleophile in Aldol Condensations.
Authors: HANDA S. , TSANG R. , MCPHAIL A. T. , FRASER‐REID B.
Published: May 2016

The enolates (II), derived from the deoxyketohexopyranoside (I), react with the aldehydes (III), forming the adducts (IV).
ChemInform Abstract: Synthesis of Apocynin, a Choleretic Constituent of Picrorhiza kurroa and Its Homologues.
Authors: SURI O. P. , BINDRA R. S. , SATTI N. K. , KHAJURIA R. K.
Published: May 2016

Grignard reaction of vanillin acetate (I) with the halides (II) and dehydration of the carbinols thus obtained yields the title compound apocynin (IIIa) (found also to be a constituent of Apocyanum species) together with its derivatives (IIIb)‐(IIIf) (no yields given).
ChemInform Abstract: New Indium‐based Fluoride Glasses.
Authors: BOUAGGAD A. , FONTENEAU G. , LUCAS J.
Published: May 2016

Three‐component fluoride glasses are obtained by fast quenching in the systems InF3‐BaF2 associated with YbF3, ThF4, or ZnF2.
ChemInform Abstract: IR Spectra of the NH3‐F2 and NH2F‐HF Complexes in Solid Argon.
Authors: ANDREWS L. , LASCOLA R.
Published: May 2016

New IR absorptions observed on cocondensation, photolysis, and annealing of Ar/NH3 and Ar/F2 samples at 12 K are assigned to a weak NH3‐F2 precursor complex and several photochemical products (after mercury arc radiation) with different structural arrangements.
ChemInform Abstract: IR Study of Physical Adsorption. Part 2. NO on Silica Aerosil Surfaces.
Authors: GHIOTTI G. , GARRONE E. , BOCCUZZI F.
Published: May 2016

At temp. slightly higher than 77 K nitric oxide is only adsorbed as cis dimers.
ChemInform Abstract: Structure of Catalytic Sites on Hydrogen‐Treated Copper‐Containing Spinel Catalysts.
Authors: JALOWIECKI L. , WROBEL G. , DAAGE M. , BONNELLE J. P.
Published: May 2016

The catalytic properties of Cu2Cr2Ox, CuCr2Ox, and CuAl2O4 have been investigated and compared with emphasis on the structure of the catalytic sites.
ChemInform Abstract: Preparation and Characterization of KAlH4.
Authors: BASTIDE J.‐P. , CLAUDY P. , LETOFFE J.‐M. , EL HAJRI J.
Published: May 2016

The solvent‐free title compound is obtained for the first time without the use of diglyme by the reaction shown in the scheme.
ChemInform Abstract: High Pressure Synthesis and Crystal Structure of Neodymium(III) Oxide Peroxide, Nd2O2(O2).
Authors: RANGE K.‐J. , STADLER M. , RAU F. , KLEMENT U.
Published: May 2016

The title compound has been obtained in pure form by reaction of Nd2O3 and KO2 at 1500 °C and 40 kbar (30 min, slow cooling to 1000 °C, extraction with H2O, no yield given).
ChemInform Abstract: Magnesium Cation‐perturbed Charge‐transfer Interactions.
Authors: CIGNITTI M. , SOCCORSI L.
Published: May 2016

The direct complexation between bases and metal cations of Group IA and IIA as process polarizing electron‐acceptors or ‐donors having n‐binding sites is studied by electron absorption spectroscopy.
ChemInform Abstract: The Carbonyl 13C Chemical Shift Tensors of Five Peptides Determined from 15N Dipole‐Coupled Chemical Shift Powder Patterns.
Authors: OAS T. G. , HARTZELL C. J. , MCMAHON T. J. , DROBNY G. P. , DAHLQUIST F. W.
Published: May 2016

The 13C chemical shift tensors are determined for the glycine carbonyl carbon in a homologous series of peptides of the general form: N‐Ac(1‐13C)gly‐X‐amide, where X is (15N)gly, DL‐(15N)tyr, L‐(15N)phe, and DL‐(15N)ala.
ChemInform Abstract: Photochemistry of Titanacyclobutanes. Evidence for a Metal‐Centered 1,4‐Biradical Intermediate.
Authors: TUMAS W. , WHEELER D. R. , GRUBBS R. H.
Published: May 2016

Photochemical activation of bis(cyclopentadienyl)titanacyclobutanes such as (I) results in clean elimination to form corresponding cyclopropanes (III) and titanocene which can be trapped by a number of added reagents e.g. acetylenes (II), PMe3, or ethylene giving (IV), (V), and (VI), respectively.
ChemInform Abstract: Reaction of Unsymmetrical Orthoformates with Organo‐Aluminum Compounds.
Authors: VOLKOV A. A. , ZLOTSKII S. S. , KRAVETS E. KH. , RAKHMANKULOV D. L.
Published: May 2016

The orthoformates (I), (V), (VIII), and (IX) are reduced by diisobutylaluminum hydride (II) or triethylaluminum (XI) to give the symmetric and unsymmetric acetals (III), (IV), (VI), (VII), and (X), or (XII).
ChemInform Abstract: Some Deoxygenation and Reduction Reactions with Samarium Diiodide.
Authors: ZHANG Y. , LIN R.
Published: May 2016

Samarium diiodide proves to be a versatile reagent for the deoxygenation of various oxides such as (I), (III), and (V) and for numerous reduction processes, e.g. the conversion of p‐benzoquinone (VII) to hydroquinone (VIII), of azobenzene (IX) to hydrazobenzene (X) and of the nitroarenes (XI) to the anilines (XII).
ChemInform Abstract: Reactions of Polyfluoroalkenes with Enolate Anions of Aldehydes.
Authors: PLENKIEWICZ H.
Published: May 2016

Reaction of the aldehydes (I) with the fluorinated olefines (II) or (IV) in two‐phase systems yields exclusively the O‐alkylated products (III) or (V) and (VI).
ChemInform Abstract: α‐Phenylation of Ketones. Reaction of Bromo Enamines with Phenylcopper Reagents.
Authors: RATHKE M. W. , VOGIAZOGLOU D.
Published: May 2016

The enamines (I) are brominated to give the corresponding α‐aminoallyl bromides which are allowed to react directly with the arylcuprates (II) to form the α‐aryl ketones (III).
ChemInform Abstract: Lewis Acid‐Induced Nucleophilic Substitution Reactions of α‐Nitro Sulfides.
Authors: ONO N. , JUN T. X. , HASHIMOTO T. , KAJI A.
Published: May 2016

The α‐nitroalkyl sulfides (I) react with the allylsilane (IIa) in the presence of tin tetrachloride, forming the allylated sulfides (III).
ChemInform Abstract: Selective Formation of 1,3,4‐Trisubstituted and 3,4‐Disubstituted trans‐β‐Lactams from Zinc Enolates and Imines.
Authors: JASTRZEBSKI J. T. B. H. , VAN DER STEEN F. H. , VAN KOTEN G.
Published: May 2016

A new route for the high yield synthesis of trans‐β‐lactams such as (IV), (VI), (VIII) is presented, involving the 1:1 reaction of an α‐amino acid ester zinc enolate such as (III) (accessible from (I)) with an appropriate imine (II) or (V).
ChemInform Abstract: A Synthetic Approach to 4‐Oxo and 4‐Thioxoazetidinones from Heterocumulenes and Ester Enolates. A Novel Synthesis of 4‐Thioacetoxyazetidin‐2‐ones.
Authors: CAINELLI G. , GIACOMINI D. , PANUNZIO M. , MARTELLI G. , SPUNTA G.
Published: May 2016

The esters (I) are converted to the enolates (II) and then allowed to react with the iso(thio)cyanates (III), producing the (thio)amides (IV).
ChemInform Abstract: A Practical Conversion of 4‐Phenyl‐2‐isoxazoline 2‐Oxides into 3,3a,8,8a‐Tetrahydro‐2‐oxo‐2H‐furo(2,3‐b)indoles via 1‐Oxido‐3H‐indole‐ 3‐acetate as a Key Intermediate.
Authors: KAJI E. , TAKAHASHI K. , KITAZAWA M. , ZEN S.
Published: May 2016

The phenylisoxazoline N‐oxides (I) are treated with TiCl4 to yield the indoline N‐oxides (II) which are converted into the tricyclic tosylates (IV).
ChemInform Abstract: Indoles. Part 4. 9‐Substituted 4,9‐Dihydropyrano(3,4‐b)indol‐1(3H)‐ ones. Synthesis and Conversion into 2,3,4,9‐Tetrahydro‐1H‐pyrido‐(3,4‐b)indoles.
Authors: EL‐GENDY A. A. , LEHMANN J.
Published: May 2016

Acidic treatment of the γ‐lactones (I) produces 5‐hydroxy‐2‐oxocarboxylic acids which react with the hydrazine hydrochlorides (II) to yield the indololactones (III).
ChemInform Abstract: A Convenient Synthesis of Pyrrolo(1,2‐a)quinoline‐1,5‐diones and Acridine‐1,9‐diones.
Authors: DEADY L. W. , WERDEN D. M.
Published: May 2016

The anilines (I) are allowed to react with the oxoalkanedicarboxylates (II) to form the enamino diesters (III).
ChemInform Abstract: Synthesis and Pharmacological Activities of 3‐Phenyl‐2‐(1‐piperazinyl)quinolines and Related Compounds.
Authors: HINO K. , NAGAI Y. , UNO H.
Published: May 2016

Starting with the methylindanone (I) or the nitrodiphenylacrylic acid (III), the dihydroquinolinones (II) are synthesized.
ChemInform Abstract: Synthesis of 2‐Phenylthiazolidine Derivatives as Cardiotonic Agents. Part 4. Modification of the Phenylpiperazino Moiety of 2‐(Phenylpiperazinoalkoxyphenyl)thiazolidine‐3‐carbothioamides and the Corresponding Carboxamides.
Authors: NATE H. , WATANABE A. , MATSUKI K. , INOUE I. , OHTSUKA H. , SESINE Y. , ODA K. , HONMA Y. , ISHIDA A. , KANNO T. , KONDA M. , NAKAI H. , WADA H. , TAKEDA M. , YABANA H. , NAGAO T.
Published: May 2016

Substituted aminoalkoxybenzaldehydes such as (I), prepared by different multistep syntheses, react with the aminoethyl mercaptan (II) and methyl iso(thio)cyanate (III), forming carbamoylthiazolidines such as (IV).
ChemInform Abstract: Propellanes of the Glycoluril Series and Bridged Tetrazocines.
Authors: GOMPPER R. , NOETH H. + , RATTAY W. , SCHWARZENSTEINER M.‐L. , SPES P. , WAGNER H.‐U.
Published: May 2016

Oxidations of the bis‐imidates (V) (obtained via the glycolurils (III)) by 4 ways (with (VIII)/(X) e.g.) in each case lead to tetrazocines (VI) but not to the desired tetraazasemibullvalenes.
ChemInform Abstract: Pyrido(4,3‐e)‐1,4‐diazepines and Pyrido(4,3‐b)‐1,5‐benzodiazepines: Synthesis of Affinity to Brain Benzodiazepine Receptors.
Authors: RADINOV R. , HAIMOVA M. , SIMOVA E. , TYUTYULKOVA N. , GORANTCHEVA J.
Published: May 2016

The 3‐aroyl‐4‐chloropyridines (I) undergo cyclocondensation with the diamines (II) or (IV), yielding the title compounds (III) and (V).
ChemInform Abstract: Isomerization of α‐Phosphoniomethylvinyl Phosphates into β‐Phosphoniovinylphosphates.
Authors: GOLOLOBOV YU. G. , OGANESYAN A. S.
Published: May 2016

Ethyl chloride is eliminated from the phosphonium salts (I) on heating to produce the betaines (II).
ChemInform Abstract: Bis(2,4,6‐tri‐t‐butylphenyl)bicyclotetraphosphane.
Authors: FLUCK E. , RIEDEL R. , HAUSEN H.‐D. , HECKMANN G.
Published: May 2016

According to the scheme the title compound (IV) is obtained in low yield along with the known diphosphene (V).
ChemInform Abstract: Synthesis of Mo2X4(PMe3)4 (Mo4‐Mo) (X: Cl, Br, I) Compounds by Decarbonylation of Mo2X4(CO)8 and by Comproportionation of Mo(CO)6 and MoX3(PMe3)3. X‐Ray Crystal Structure of Mo2I4(PMe3)4·2THF.
Authors: COTTON F. A. , POLI R.
Published: May 2016

IR spectroscopic studies confirm that the synthesis of the iodo title compound (IVa) from the octacarbonyl (I) and PMe3 (II) according to the scheme occurs via the intermediate (III).
ChemInform Abstract: Uranyl Nitrate Complexes of Some Schiff Bases of 4‐Aminoantipyrine and Certain Carbonyl Compounds.
Authors: DEVI G. S. , INDRASENAN P.
Published: May 2016

Uranyl nitrate and the Schiff base ligands react in a molar ratio of 1:2 in MeOH, acetone, or EtOH under reflux to give the title complexes (I) (yields not given).
ChemInform Abstract: Base‐Induced Conversion of Macrocyclic Tetradentate to Bidentate Salicylamide Complexes. Structure of the Picoline Adduct to a Co(II)(1,2‐bis(o‐hydroxybenzoyl)ethylenediamine).
Authors: KOOLA J. D. , KOCHI J. K.
Published: May 2016

Treatment of (III) with picoline yields the base adduct (V) showing an unusual octadedral coordination of Co(II) to only a single salicyl group and four picoline bases.