bluuebunny/crossref_metadata_2025 huggingface dataset:
Lectin-Like Binding of Four Animal Lactobacilli Considered for their Use in Probiotical Preparations
Authors: I. Štyriak  , I. Štyriaková
Published: April 2016

Four gut lactobacilli (Lactobacillus plantarum L5, Lactobacillus paracasei L81, Lactobacillus fermentum L 670 and Lactobacillus casei subsp. pseudoplantarum L.c.) were examined by particle agglutination assay (PAA) for their lectin-like binding activity after their cultivation on Rogosa agar and in MRS broth. Seven ECM (extracellular matrix) molecules (bovine mucin, porcine mucin, bovine fibronectin, porcine fibronectin, fetuin, bovine lactoferrin and heparin) were selected for this assay. Moreover, haemagglutination tests with pig, cattle, sheep, and hen erythrocytes were performed. However, none of the four Lactobacillus strains examined did react with any of the erythrocytes tested. The differences between individual strains were observed in their binding to immobilised ECM molecules. The best adherent were the Lactobacillus plantarum L5 and Lactobacillus paracasei L81, however, the other two strains showed also good ECM binding of some ECM proteins. With regard to an influence of cultivation medium on lectin-like binding activity, binding of all ECM molecules was expressed in Lactobacillus paracasei L81 to significantly higher degree after cultivation on Rogosa agar than in MRS broth. Similarly, strains Lactobacillus fermentum L670 and Lactobacillus casei subsp. pseudoplantarum L.c. displayed significantly higher binding of fibronectin and mucin after growth on Rogosa agar in comparison with MRS broth cultivation. The influence of cultivation medium on fetuin binding by Lactobacillus fermentum L670 was also not significant while Lactobacillus casei subsp. pseudoplantarumL.c. bound fetuin significantly better after growth on Rogosa agar.Heparin pretreatment increased the binding of the ECM molecules by the Lactobacillus fermentum L 670 strain significantly with the exception of porcine fibronectin when the strain was cultivated in MRS broth. Similar positive effect of heparin was observed also in the other three lactobacilli. This result is important especially in the connection with the observations that heparin decreased ECM binding of enteropathogens as staphylococci or clinical enterococcal isolates. Following up on some earlier strain characteristics, these results confirm that the selected lactobacilli are suitable for probiotic purposes.
Magnetic field-controlled hysteresis loop bias in orthogonal exchange-spring coupling composite magnetic films
Authors: Jiang Jun , Yu Tian , Pan Rui , Zhang Qin-Tong , Liu Pan , Naganuma Hiroshi , Oogane Mikihiko , Ando Yasuo , Han Xiufeng
Published: April 2016

The exchange bias (EB) is an effective fundamental and applicational method to realize magnetic hysteresis loop shifting. However, further manipulation of EB unidirectional anisotropy is difficult after setup using either field deposition or post-annealing. In this work, we experimentally show a new approach to control the magnetic hysteresis loop bias in a [Co(0.2)/Pd(1)]5/CoFeB orthogonal exchange-spring (ES) coupling system, where the direction and strength of unidirectional anisotropy can be easily manipulated by applying an external magnetic field.
Switching local magnetization by electric-field-induced domain wall motion
Authors: Kakizakai Haruka , Ando Fuyuki , Koyama Tomohiro , Yamada Kihiro , Kawaguchi Masashi , Kim Sanghoon , Kim Kab-Jin , Moriyama Takahiro , Chiba Daichi , Ono Teruo
Published: April 2016

Electric field effect on magnetism is an appealing technique for manipulating magnetization at a low energy cost. Here, we show that the local magnetization of an ultrathin Co film can be switched by simply applying a gate electric field without the assistance of any external magnetic field or current flow. The local magnetization switching is explained by nucleation and annihilation of magnetic domains through domain wall motion induced by the electric field. Our results lead to external-field-free and ultralow-energy spintronic applications.
Concentration dependence of Li+/Na+ diffusion in manganese hexacyanoferrates
Authors: Takachi Masamitsu , Fukuzumi Yuya , Moritomo Yutaka
Published: April 2016

Manganese hexacyanoferrates (Mn-HCFs) with a jungle-gym-type structure are promising cathode materials for Li+/Na+ secondary batteries (LIBs/SIBs). Here, we investigated the diffusion constants D
Li/D
Na of Li+/Na+ against the Li+/Na+ concentration x
Na/x
Li and temperature (T) of A
1.32Mn[Fe(CN)6]0.833.6H2O (A = Li and Na). We evaluated the activation energy

of D
Li/D
Na against x
Na/x
Li. We found that

steeply increases with x
Na from 0.41 eV at x
Na = 0.69 to 0.7 eV at 1.1. The increase in

is ascribed to the occupancy effect of the Na+ site. The increase in

is suppressed, probably because the number of Li+ sites is three times that of Na+ sites.
Epitaxial graphene on SiC formed by the surface structure control technique
Authors: Aritsuki Takuya , Nakashima Takeshi , Kobayashi Keisuke , Ohno Yasuhide , Nagase Masao
Published: April 2016

The thermal decomposition of silicon carbide (SiC) is a promising method for producing wafer-scale single-crystal graphene. The optimal growth condition for high-mobility epitaxial graphene fabricated by infrared rapid thermal annealing is discussed in this paper. The surface structures, such as step–terrace and graphene coverage structures, on a non-off-axis SiC(0001) substrate were well controlled by varying the annealing time in a range below 10 min. The mobility of graphene grown at 1620 °C for 5 min in 100 Torr Ar ambient had a maximum value of 2089 cm2 V−1 s−1. We found that the causes of the mobility reduction were low graphene coverage, high sheet carrier density, and nonuniformity of the step structure.
Chemical weathering and the role of sulfuric and nitric acids in carbonate weathering: Isotopes (13C, 15N, 34S, and 18O) and chemical constraints
Authors: Li Cai , Ji Hongbing
Published: April 2016

Multiple isotopes (13C‐DIC, 34S and 18O‐SO42−, 15N and 18O‐NO3−) and water chemistry were used to evaluate weathering rates and associated CO2 consumption by carbonic acid and strong acids (H2SO4 and HNO3) in a typical karst watershed (Wujiang River, Southwest China). The dual sulfate isotopes indicate that sulfate is mainly derived from sulfide oxidation in coal stratum and sulfide‐containing minerals, and dual nitrate isotopes indicate that nitrate is mainly derived from soil N and nitrification. The correlation between isotopic compositions and water chemistry suggests that sulfuric and nitric acids, in addition to carbonic acid, are involved in carbonate weathering. The silicate and carbonate weathering rates are 7.2 t km−2 yr−1 and 76 t km−2 yr−1, respectively. In comparison with carbonate weathering rates (43 t km−2 yr−1) by carbonic acid alone, the subsequent increase in rates indicates significant enhancement of weathering when combined with sulfuric and nitric acids. Therefore, the role of sulfuric and nitric acids in the rock weathering should be considered in the global carbon cycle.
3D Self‐Supporting Porous Magnetic Assemblies for Water Remediation and Beyond
Authors: Du Ran , Zhao Qiuchen , Zheng Zhe , Hu Wenping , Zhang Jin
Published: April 2016

In the past few years, three‐dimensional self‐supporting porous magnetic assemblies (3D‐SPMAs) have emerged as a new research area in materials science because of their combined features of three‐dimensional self‐supporting porous assemblies (3D‐SPAs) and magnetic materials. Due to these attributes, 3D‐SPMAs gain numerous tempting properties such as magnetism‐induced actuating, magnetic shape memory effects, and alternative magnetic field (AMF) induced heat generation, showcasing huge potential in diverse applications stretching over water remediation, actuators, biomedical therapy, etc. Especially, 3D‐SPMAs displayed eminent potential in water remediation for their large processing capacity, remote controllability, and magnetic‐field‐mediated wettability. With the rising interest in 3D‐SPAs, the increasing understanding of magnetic materials, and the flourish of materials preparation technique, an upsurge has appeared in 3D‐SPMAs and thus managing them a class of emerging and promising functional materials. However, currently there are rarely review papers concerning 3D‐SPMAs. In this light, this review aims to express a comprehensive overview of this young field and fuel further innovations for preparation methods and practical applications of 3D‐SPMAs. The focus is placed on the synthetic strategies and applications especially in water remediation. The potential opportunities and challenges are also discussed.
Patients with rosacea have increased risk of dementia
Authors: Egeberg Alexander , Hansen Peter R. , Gislason Gunnar H. , Thyssen Jacob P.
Published: April 2016

Objective

Rosacea is a common chronic inflammatory skin disorder where upregulation of matrix metalloproteinases (MMPs) and antimicrobial peptides (AMPs) is observed. Notably, inflammation, MMPs, and AMPs are also involved in the etiopathogenesis of neurodegenerative disorders including certain forms of dementia such as Alzheimer disease (AD). Based on several clinical observations, we investigated the association between rosacea and dementia, including AD in Danish registers.

Methods

All Danish citizens aged ≥18 years between January 1, 1997 and December 31, 2012 were linked at the individual level through administrative registers. Cox regression was used to calculate unadjusted and adjusted hazard ratios (HRs).

Results

The study comprised a total of 5,591,718 individuals, including 82,439 patients with rosacea. A total of 99,040 individuals developed dementia (any form) in the study period, of whom 29,193 were diagnosed with AD. The adjusted HRs of dementia and AD were 1.07 (95% confidence interval [CI] = 1.01–1.14), and 1.25 (95% CI = 1.14–1.37), respectively, in patients with rosacea. Stratified by sex, the HRs of AD were 1.28 (95% CI = 1.15–1.45) and 1.16 (95% CI = 1.00–1.35) in women and men, respectively. When results were stratified by age at study entry, the risk of AD was only significantly increased in individuals ≥60 years old (adjusted HR = 1.20, 95% CI = 1.08–1.32). When analyses were limited to patients with a hospital dermatologist diagnosis of rosacea only, the adjusted HRs of dementia and AD were 1.42 (95% CI = 1.17–1.72) and 1.92 (95% CI = 1.44–2.58), respectively.

Interpretation

Rosacea is significantly associated with dementia, particularly AD. Increased focus on symptoms of cognitive dysfunction in older patients with rosacea may be relevant. Ann Neurol 2016;79:921–928
A Macrocyclic Fluorophore Dimer with Flexible Linkers: Bright Excimer Emission with a Long Fluorescence Lifetime
Authors: Osaki Hiroshi , Chou Chih‐Ming , Taki Masayasu , Welke Kai , Yokogawa Daisuke , Irle Stephan , Sato Yoshikatsu , Higashiyama Tetsuya , Saito Shohei , Fukazawa Aiko , Yamaguchi Shigehiro
Published: April 2016

Bright fluorescent molecules with long fluorescence lifetimes are important for the development of lifetime‐based fluorescence imaging techniques. Herein, a molecular design is described for simultaneously attaining long fluorescence lifetime (τ) and high brightness (ΦF×ɛ) in a system that features macrocyclic dimerization of fluorescent π‐conjugated skeletons with flexible linkers. An alkylene‐linked macrocyclic dimer of bis(thienylethynyl)anthracene was found to show excimer emission with a long fluorescence lifetime (τ≈19 ns) in solution, while maintaining high brightness. A comparison with various relevant derivatives revealed that the macrocyclic structure and the length of the alkylene chains play crucial roles in attaining these properties. In vitro time‐gated imaging experiments were conducted as a proof‐of‐principle for the superiority of this macrocyclic fluorophore relative to the commercial fluorescent dye Alexa Fluor 488.
Engineered Molecular Chain Ordering in Single‐Walled Carbon Nanotubes/Polyaniline Composite Films for High‐Performance Organic Thermoelectric Materials
Authors: Wang Liming , Yao Qin , Xiao Juanxiu , Zeng Kaiyang , Qu Sanyin , Shi Wei , Wang Qun , Chen Lidong
Published: April 2016

Single‐walled carbon nanotubes (SWNTs)/polyaniline (PANI) composite films with enhanced thermoelectric properties were prepared by combining in situ polymerization and solution processing. Conductive atomic force microscopy and X‐ray diffraction measurements confirmed that solution processing and strong π–π interactions between the PANI and SWNTs induced the PANI molecules to form a highly ordered structure. The improved degree of order of the PANI molecular arrangement increased the carrier mobility and thereby enhanced the electrical transport properties of PANI. The maximum in‐plane electrical conductivity and power factor of the SWNTs/PANI composite films reached 1.44×103 S cm−1 and 217 μW m−1 K−2, respectively, at room temperature. Furthermore, a thermoelectric generator fabricated with the SWNTs/PANI composite films showed good electric generation ability and stability. A high power density of 10.4 μW cm−2 K−1 was obtained, which is superior to most reported results obtained in organic thermoelectric modules.
Bioinspired Total Syntheses of Isospongian‐type Diterpenoids (−)‐Kravanhins A and C
Authors: Zhong Zhuliang , Zhao Gaoyuan , Xu Dengyu , Dong Baobiao , Song Dengpeng , Xie Xingang , She Xuegong
Published: April 2016

The first bioinspired total syntheses of (−) kravanhins A and C were accomplished from a labdane diterpenoid derivative. The key reactions involve a photooxidation and a one‐pot sequential aldol cyclization and lactonization, which provide a new plausible biosynthetic pathway for the kravanhins and other symbiotic members.
Self‐Assembly of Porphyrin–Paclitaxel Conjugates Into Nanomedicines: Enhanced Cytotoxicity due to Endosomal Escape
Authors: Zheng Xiaohua , Li Zhensheng , Chen Li , Xie Zhigang , Jing Xiabin
Published: April 2016

Nanomedicines assembled directly from drug molecules possess several advantages, including precise molecular structure and high content of drugs. Herein, porphyrin–paclitaxel conjugates (Py‐s‐s‐PTX) were synthesized by using a disulfide bond as a linker. The Py‐s‐s‐PTX could self‐assemble into nanoparticles (Py‐s‐s‐PTX NPs) with a size of about 100 nm via disulfide‐induced assembly. Py‐s‐s‐PTX NPs are highly stable under biological conditions and could be destroyed in the presence of reducing agents as revealed by dynamic light scattering. The obtained Py‐s‐s‐PTX NPs could be internalized by cancer cells via endocytosis and disassociated in the reducing cytoplasm, thus releasing PTX in cancer cells. Endosomal escape triggered upon irradiation could enhance the cytotoxicity of paclitaxel, and Py‐s‐s‐PTX NPs possess cytotoxicity comparable to that of free PTX. We believe that this disulfide‐assembled nanomedicine represents a new and important development for chemotherapy in cancer therapy.
Triphenylsilane‐fused Porphyrins
Authors: Kato Kenichi , Kim Jun Oh , Yorimitsu Hideki , Kim Dongho , Osuka Atsuhiro
Published: April 2016

A reaction sequence of 2‐(diphenylsilyl)phenylation by Negishi coupling and intramolecular sila‐Friedel–Crafts reaction has been explored for the synthesis of mono‐triphenylsilane‐fused porphyrins 5 M and 6 M (M= Ni, Zn) and bis‐triphenylsilane‐fused porphyrins 7 M and 8 Ni. A triply linked triphenylsilane‐fused NiII porphyrin, 13 Ni, was synthesized in a stepwise manner involving the above reaction sequence and a final Pd‐catalyzed C−H activating arylative cyclization. The silicon atom in 13 Ni takes a distorted planarized structure with an almost perpendicular Si‐phenyl group, causing an electronic effect due to effective σ*–π* interaction.
Concentration dependence of luminescence efficiency of Dy3+ ions in strontium zinc phosphate glasses mixed with Pb3O4
Authors: Kumar Valluri Ravi , Giridhar G. , Veeraiah N.
Published: April 2016

In this work we synthesized SrO–ZnO–P2O5 glasses mixed with Pb3O4 (heavy metal oxide) and doped with different amounts of Dy2O3 (0.1 to 1.0 mol%). Subsequently their emission and decay characteristics were investigated as a function of Dy2O3 concentration. The emission spectra exhibited three principal emission bands in the visible region corresponding to 4F9/2 → 6H15/2 (482 nm), 6H13/2 (574 nm) and 6H11/2 (663 nm) transitions. With increase in the concentration of Dy2O3 (upto 0.8 mol%) a considerable increase in the intensity of these bands was observed and, for further increase, quenching of photoluminescence (PL) output was observed. Using emission spectra, various radiative parameters were evaluated and all these parameters were found to increase with increase in Dy2O3 concentration. The Y/B integral emission intensity ratio of Dy3+ ions evaluated from these spectra exhibited a decreasing trend with increase in the Dy2O3 concentration up to 0.8 mol%. Quenching of luminescence observed in the case of the glasses doped with 1.0 mol% is attributed to clustering of Dy3+ ions. The quantitative analysis of these results together with infra‐red (IR) spectral studies indicated that 0.8 mol% is the optimum concentration of Dy3+ ions needed to achieve maximum luminescence efficiency. Copyright © 2016 John Wiley & Sons, Ltd.
Elucidating concepts in drug design through taste with natural and artificial sweeteners
Authors: Lipchock James M. , Lipchock Sarah V.
Published: April 2016

Fundamental concepts in biochemistry important for drug design often lack connection to the macroscopic world and can be difficult for students to grasp, particularly those in introductory science courses at the high school and college level. Educational research has shown that multisensory teaching facilitates learning, but teaching at the high school and college level is almost exclusively limited to the visual and auditory senses. This approach neglects the lifetime of experience our students bring to the classroom in the form of taste perception and makes our teaching less supportive of those with sensory impairment. In this article, we outline a novel guided‐inquiry activity that utilizes taste perception for a series of natural and artificial sweetener solutions to introduce the concepts of substrate affinity and selectivity in the context of drug design. The findings from this study demonstrate clear gains in student knowledge, as well as an increase in enthusiasm for the fields of biochemistry and drug design. © 2016 by The International Union of Biochemistry and Molecular Biology, 44(6):550–554, 2016.
Biocatalytic Properties and Structural Analysis of Eugenol Oxidase from Rhodococcus jostii RHA1: A Versatile Oxidative Biocatalyst
Authors: Nguyen Quoc‐Thai , de Gonzalo Gonzalo , Binda Claudia , Rioz‐Martínez Ana , Mattevi Andrea , Fraaije Marco W.
Published: April 2016

Eugenol oxidase (EUGO) from Rhodococcus jostii RHA1 had previously been shown to convert only a limited set of phenolic compounds. In this study, we have explored the biocatalytic potential of this flavoprotein oxidase, resulting in a broadened substrate scope and a deeper insight into its structural properties. In addition to the oxidation of vanillyl alcohol and the hydroxylation of eugenol, EUGO can efficiently catalyze the dehydrogenation of various phenolic ketones and the selective oxidation of a racemic secondary alcohol—4‐(1‐hydroxyethyl)‐2‐methoxyphenol. EUGO was also found to perform the kinetic resolution of a racemic secondary alcohol. Crystal structures of the enzyme in complexes with isoeugenol, coniferyl alcohol, vanillin, and benzoate have been determined. The catalytic center is a remarkable solvent‐inaccessible cavity on the si side of the flavin cofactor. Structural comparison with vanillyl alcohol oxidase from Penicillium simplicissimum highlights a few localized changes that correlate with the selectivity of EUGO for phenolic substrates bearing relatively small p‐substituents while tolerating o‐methoxy substituents.
Assessing the Delivery of Molecules to the Mitochondrial Matrix Using Click Chemistry
Authors: Hoogewijs Kurt , James Andrew M. , Smith Robin A. J. , Gait Michael J. , Murphy Michael P. , Lightowlers Robert N.
Published: April 2016

Mitochondria are central to health and disease, hence there is considerable interest in developing mitochondria‐targeted therapies that require the delivery of peptides or nucleic acid oligomers. However, progress has been impeded by the lack of a measure of mitochondrial import of these molecules. Here, we address this need by quantitatively detecting molecules within the mitochondrial matrix. We used a mitochondria‐ targeted cyclooctyne (MitoOct) that accumulates several‐ hundredfold in the matrix, driven by the membrane potential. There, MitoOct reacts through click chemistry with an azide on the target molecule to form a diagnostic product that can be quantified by mass spectrometry. Because the membrane potential‐dependent MitoOct concentration in the matrix is essential for conjugation, we can now determine definitively whether a putative mitochondrion‐targeted molecule reaches the matrix. This “ClickIn” approach will facilitate development of mitochondria‐targeted therapies.
Aortic root compression during transcatheter pulmonary valve replacement
Authors: Lindsay Ian , Aboulhosn Jamil , Salem Morris , Levi Daniel
Published: April 2016

Objectives

To describe the incidence of aortic root compression (ARC) during transcatheter pulmonary valve replacement (TPVR).

Background

ARC can occur during balloon sizing of the right ventricular outflow tract (RVOT) or during coronary compression testing (BS/CCT) prior to TPVR, causing aortic valve dysfunction and/or root distortion with or without coronary compression. This has limited the use of TPVR in patients with native RVOTs, including those with a transannular patch (TAP). The characteristics of this patient cohort have not previously been described.

Methods

A retrospective review was performed of all patients with congenital heart disease who presented for TPVR at UCLA from 2010 to 2015. ARC characteristics during BS/CCT were noted for all relevant cases.

Results

Inclusion criteria were met by 174 patients. ARC occurred in 16 patients (9%), of whom 14 had Tetralogy of Fallot with a native/TAP RVOT (14/42, 33%, of all native/TAP patients). Five ARC patients also had concomitant coronary artery compression. Isolated coronary compression occurred in six patients. Two patients underwent successful TPVR despite ARC by implanting the valves in the distal RVOT. One patient required surgical PVR and Sapien valve explantation after TPVR caused severe ARC.

Conclusions

The majority of cases of ARC occur in patients with native/TAP RVOTs. ARC during BS/CCT may identify those at risk for ARC following TPVR. While ARC is a real phenomenon, it is unclear if it can be accurately predicted, what its clinical significance will be and how it is best avoided. Further studies are necessary to answer these questions. © 2016 Wiley Periodicals, Inc.
Metal‐Derived Mesoporous Structure of a Carbon Nanofiber Electrocatalyst for Improved Oxygen Evolution Reaction in Alkaline Water Electrolysis
Authors: An Xianghua , Shin Dongyoon , Jeong Jaehoon , Lee Jaeyoung
Published: April 2016

The development of cost‐effective electrocatalysts with sustainable activity for efficient water oxidation has been intensively investigated. Carbon nanofibers (CNFs) with nickel and iron can be synthesized through controlled electrospinning and subsequent pyrolysis processes to investigate the effect of metal content on the oxygen evolution reaction (OER). Following detailed physico‐ and electrochemical characterization, the metal‐derived mesoporous structure of CNF, with pores of 3–9 nm in diameter, seems to provide superior active sites for more favorable OER. This observation suggests a new perspective that can be extended to the preparation of both non‐noble‐metal and metal‐free electrocatalysts for a number of alkaline galvanic and electrolytic energy cells.
Autonomously Propelled Motors for Value‐Added Product Synthesis and Purification
Authors: Srivastava Sarvesh K. , Schmidt Oliver G.
Published: April 2016

A proof‐of‐concept design for autonomous, self‐propelling motors towards value‐added product synthesis and separation is presented. The hybrid motor design consists of two distinct functional blocks. The first, a sodium borohydride (NaBH4) granule, serves both as a reaction prerequisite for the reduction of vanillin and also as a localized solid‐state fuel in the reaction mixture. The second capping functional block consisting of a graphene–polymer composite serves as a hydrophobic matrix to attract the reaction product vanillyl alcohol (VA), resulting in facile separation of this edible value‐added product. These autonomously propelled motors were fabricated at a length scale down to 400 μm, and once introduced in the reaction environment showed rapid bubble‐propulsion followed by high‐purity separation of the reaction product (VA) by the virtue of the graphene–polymer cap acting as a mesoporous sponge. The concept has excellent potential towards the synthesis/isolation of industrially important compounds, affinity‐based product separation, pollutant remediation (such as heavy metal chelation/adsorption), as well as localized fuel‐gradients as an alternative to external fuel dependency.
Employing Core‐Shell Quantum Dots as Triplet Sensitizers for Photon Upconversion
Authors: Okumura Keisuke , Mase Kazuma , Yanai Nobuhiro , Kimizuka Nobuo
Published: April 2016

A new family of surface‐functionalized CdSe/ZnS core‐shell quantum dots (csQD) has been developed, which work as triplet sensitizers for triplet‐triplet annihilation‐based photon upconversion (TTA‐UC). The surface modification of csQD with acceptor molecules plays a key role in the efficient relay of the excited energy of csQD to emitter molecules in the bulk solution, where the generated emitter triplets undergo triplet‐triplet annihilation that leads to photon upconversion. Interestingly, improved UC properties were achieved with the core‐shell QDs compared with core‐only CdSe QDs (cQD). The threshold excitation intensity, which is defined as the necessary irradiance to achieve efficient TTA process, decreases by more than a factor of four. Furthermore, the total UC quantum yield is enhanced more than 50‐fold. These enhancements should be derived from better optical properties of csQD, in which the non‐radiative surface recombination sites are passivated by the shell layer with wider bandgap.
Asymmetric Organocatalytic Stepwise [2+2] Entry to Tetra‐Substituted Heterodimeric and Homochiral Cyclobutanes
Authors: Nielsen Alex J. , Jenkins Hilary A. , McNulty James
Published: April 2016

An asymmetric synthesis of tetra‐substituted cyclobutanes involving an organocatalytic, stepwise [2+2]‐cycloaddition is described. The secondary‐amine‐catalyzed method allows for the hetero‐dimerization of two different cinnamic‐acid‐derived sub‐units, opening a novel one‐step assembly to densely functionalized, head‐to‐tail coupled dimeric cyclobutanes in high enantiomeric excess. A series of selective synthetic interconversions in these sensitive cycloadducts is also described.
ChemInform Abstract: ELECTRON MICROSCOPE STUDIES OF IRON CORROSION PRODUCTS IN WATER AT ROOM TEMPERATURE
Authors: KASSIM J. , BAIRD T. , FRYER J. R.
Published: April 2016

Der Korrosionsprozeß von Fe in Wasser bei 20°C wird anhand elektronenmikroskopischer Beobachtung der Änderungen der Kristallmorphologie, der Kristallgitter sowie der Beugungsmuster der Produkte verfolgt.
ChemInform Abstract: Preparation und Study of the Electrical Properties of n‐Type Boron und Si‐B Alloys with a High Boron Concentration.
Authors: DUSSEAU J. M. , ROBERT J. L. , ARMAS B. , COMBESCURE C.
Published: April 2016

n‐Leitendes Bor sowie B‐Si‐Legierungen lassen sich durch chemische Abscheidung in BBry oder BBr3 + Sißrq‐haltigen Dampfphasen herstellen, wenn zur Dotierung Fe, Co oder Ni als Bromide zugesetzt werden (Beschreibung der CVD‐Appnrutur sowie der Wuchstumsbedingimgen ).
ChemInform Abstract: Reduktionsprozesse von Uranylmolybdat (UO2Mo04), Na‐polymolybdaten (Na2Mo04, Na2Mo207, Na2Mo4013) und von Verbindungen des Systems UO3‐MoO3 ‐Na′O durch H2.
Authors: DION C. , NOEL A.
Published: April 2016

H: reduziert UO3MoO4 in einer ersten Stufe zu einem Gemisch aus U03 und M002 und in einer zweiten Stufe zu U02 und M0 . Bei den Na‐polymolybdaten verläuft die Reduktion komplizierter.
ChemInform Abstract: DIACETYLENE MONOMERS AND POLYMERS WITH CHIRAL SUBSTITUENTS: STRUCTURE, SOLID‐STATE POLYMERIZATION, AND PROPERTIES
Authors: WILSON R. B. , DUESLER E. N. , CURTIN D. Y. , PAUL I. C. , BAUGHMAN R. H. , PREZIOSI A. F.
Published: April 2016

Das rucemische Bisplienyluretlian (I) bildet zwei monomere, kristalline Phasen, deren eine aus orthorhombischen (RG; Pbca, Z=8) und deren andere aus monoklinen Kristallen besteht (RG: P21/c. 7, = 2).
ChemInform Abstract: ASYMMETRIC SYNTHESIS OF (S)‐ AND (R)‐MALIC ACID FROM KETENE AND CHLORAL
Authors: WYNBERG H. , STARING E. G. J.
Published: April 2016

Diastereomere Cinchona‐Alkaloide wie Chinidin, Chinin, Cinchonin, Cinchonidin bewirken eine stereochemisch bevorzugte bis ausschließliche Addition von Chloral (II) an Keten (I) zum β‐Lacton (III).
ChemInform Abstract: PHOTOCHEMICAL REACTION OF 2‐BROMO‐3‐METHOXY‐1,4‐NAPHTHOQUINONE WITH SILYLENOL ETHER ‐ ONE‐POT SYNTHESIS OF POLYCYCLIC AROMATIC COMPOUNDS
Authors: MARUYAMA K. , TAI S. , TOJO M. , OTSUKI T.
Published: April 2016

Das Brommethoxynaphthochinon (I) und die Trialkylsilylenolether (II) ergeben bei Belichtung ein Gemisch der Verbindungen (III)‐(V).
ChemInform Abstract: CATIONIC PRENYLATION OF OLEFINS
Authors: KLEIN H. , ERBE A. , MAYR H.
Published: April 2016

Prenylchlorid (1 b reagiert mit den Olefinen (II) unter Lcwis‐Säure‐Katalyse stets in Markownikow‐Richtung zu den 1 zl‐Addtlkten (III).
ChemInform Abstract: THE VILSMEIER‐HAACK FORMYLATION OF 1,2,3‐TRIMETHYLINDOLE
Authors: BASTIANELLI C. , CIPICIANI A. , CLEMENTI S. , GIULIETTI G.
Published: April 2016

LÄS‐Trimethyl‐indol (I) ergibt mit Tri?tioracetanhydrid über Zwischenstufen wie (II) und (III) das Tri fluoracetylmethyl‐incio1 (IV).
ChemInform Abstract: PREPARATION OF 3‐METHYL‐4‐VINYL‐1,2,5‐OXADIAZOLE AND 3‐METHYL‐4‐VINYL‐1,2,5‐THIADIAZOLE
Authors: BOGER D. L. , BROTHERTON C. E.
Published: April 2016

3.4‐Dimethyl‐l ,LS‐oxa‐ und ‐thiadiazol (Ia) und (Ib) werden lithiiert.
ChemInform Abstract: PREPARATION OF SOME 1,2,3,4‐TETRAZOLES
Authors: COWPER A. J. , ASTIK R. R. , THAKER K. A.
Published: April 2016

Die Umsetzung der Thiosemicarbazide (I) mit salpetriger Säure (II) ergibt die Thiatriazole (III), die unter basischen Bedindungen zu den entsprechenden Tetrazolthiolen (IV) isomerisieren.
ChemInform Abstract: REACTION OF SULFENE WITH HETEROCYCLIC N,N‐DISUBSTITUTED α‐AMINOMETHYLENEKETONES. VII. SYNTHESIS OF 1,2‐OXATHIINO(5,6‐G)BENZOTHIAZOLE DERIVATIVES
Authors: MOSTI L. , MENOZZI G. , SCHENONE P.
Published: April 2016

Die Hydrox‐v‐ methylenierung des Ketons (I) ergibt die Hydroxymethylenverbindung (II), die mit Aminen zu den Aminomethylenverbindungen (III) umgesetzt wird.
ChemInform Abstract: TRANS LENGTHENING OF METAL‐HYDROGEN BONDS AND STERIC MODIFICATION OF METAL‐PHOSPHORUS BOND LENGTHS IN CHLORO‐ AND HYDRIDO‐TRANSITION‐METAL‐PHOSPHINE COMPLEXES
Authors: ROBERTSON G. B. , TUCKER P. A.
Published: April 2016

Anhand von bekannten Metall‐Ligand‐Bindungslängen in den Komplexen (I) bis (IV) wird ihre Abhängigkeit von einer Reihe von Faktoren wie z.B. spezifische Natur des trans‐Liganden.
ChemInform Abstract: TERPENES AND TERPENE DERIVATIVES. XII. SYNTHESIS OF ISOTHEASPIRANE AND VITISPIRANE
Authors: MARSCHALL H. , PENNINGER J. , WEYERSTAHL P.
Published: April 2016

Dehydratisierung des I‐Iydroxylactons (I) mit POCl3 in Pyridin bzw. mit Burgess‐ Reagenz gibt in 85‐ bzw. 87proz. Ausb. das Lacton (II), das S bzw. 1092 des Isomeren (III) enthält.
ChemInform Abstract: PREPARATION OF PROTECTED AMINO ALDEHYDES
Authors: STANFIELD C. F. , PARKER J. E. , KANELLIS P.
Published: April 2016

Die N‐geschützten Aminosäuren (I) werden mit dem Boran‐Komplex (II) zu den Alkoholen (III) reduziert und dann zu den Aminoaldehyden (IV) oxidiert.
ChemInform Abstract: Composition and Structural Changes of Boron Carbides Deposited by Chemical Vapour Deposition Under Various Conditions of Temperature and Supersaturation.
Authors: VANDENBULCKE L. , VUILLARD G.
Published: April 2016

Mit Hilfe der Stauströmungsmethode werden aus BCl3‐CH4‐H2‐Gemischen im Temp.‐ Bereich 1400‐2000 Kdurchgehende homogene B‐carbid‐Schichten abgeschieden.
ChemInform Abstract: LIGHT‐INDUCED REACTIONS OF MORPHINE DERIVATIVES. 3. SECOND ORDER PHOTO‐BECKMANN REARRANGEMENT
Authors: BOES M. + , FLEISCHHACKER W.
Published: April 2016

Die Bestrahlung des Oxims (I) führt zu einer als Beckmann‐Reaktion 2. Art bezeichneten Fragmentierungsreaktion.
ChemInform Abstract: REACTIVITIES OF ALDEHYDES IN HOMOGENEOUS CATALYTIC HYDROGENATION WITH CATIONIC RHODIUM COMPLEXES
Authors: FUJITSU H. , MATSUMURA E. , TAKESHITA K. , MOCHIDA I.
Published: April 2016

Rhodium Complexes.
ChemInform Abstract: PREPARATION AND PROPERTIES OF (2,4,6‐TRI‐TERT‐BUTYLPHENOXY)DIMETHYLSILYL CHLORIDE AND (2,4,6‐TRI‐TERT‐BUTYLPHENOXY)DIMETHYLSILYL ENOL ETHERS
Authors: MANIS P. A. , RATHKE M. W.
Published: April 2016

2,4,6‐Tris‐tert.‐butylphenol (I) liefert mit Dimethyldichlorsilan (II) in Gegenwart von Triethylamin den Chlorsilylether (III), der mit Ketonen (IV) zu Enolethern (V) in hohen Ausbeuten umgesetzt werden kann wie am Beispiel der Ketone (VI)‐(IX) gezeigt wird.
ChemInform Abstract: SILAETHENES. VIII. GAS‐PHASE PYROLYSIS OF SILICON‐HALOGENATED SILACYCLOBUTANES
Authors: AUNER N. , GROBE J.
Published: April 2016

Die Gasphasenpyrolyse der siliciumhalogenierten Silacyclobutane (I) und (II) wird unter verschiedenen Bedingungen untersucht.
ChemInform Abstract: REACTIVITY OF AN (ARYLTHIO)THIOCARBONYL RADICAL. INTRAMOLECULAR ADDITION TO THE AZIDO GROUP
Authors: BENATI L. , MONTEVECCHI P. C.
Published: April 2016

Aus 2‐Azido‐anilin entsteht das Diazoniumsalz (I), das bei Behandlung mit Iodid‐Ionen und Schwefelkohlenstoff in Aceton zu den Reaktionsprodukten (II)‐(IV) führt.
ChemInform Abstract: ION‐RADICAL PERFLUOROALKYLATION. VIII. REACTION OF PERFLUOROALKYL IODIDES WITH β‐DIKETONES IN LIQUID AMMONIA
Authors: YAGUPOL'SKII L. M. , MATYUSHECHEVA G. I. , PAVLENKO N. V. , BOIKO V. N.
Published: April 2016

Die β‐Diketone (I) setzen sich bei UV‐Be‐ Strahlung in flüssigem Ammoniak mit den Perfluoralkyliodiden (II) unter Perfluoralkylierung des Methylenkohlenstoffatoms in (I) und anschließender Ammonolyse der zum Carbanionzentrum α‐ständigen CFz‐Gruppe zu den Perfluoralkylaminovinylketonen (IIIa)‐(IIIc) um.
ChemInform Abstract: CHEMISTRY OF TRIFLUOROMETHYL‐SULFUR‐NITROGEN COMPOUNDS. XII. PREPARATION AND PROPERTIES OF BIS(TRIFLUOROMETHYLTHIO)AMINO‐SUBSTITUTED METHANES
Authors: BOROWSKI H. E. , HAAS A.
Published: April 2016

Aus dem Gleichgewicht zwischen den Komponenten (I), (III), (IV) und (V) können (V) als Trimethylsilyl‐Derivate (VI) abgefangen werden.
ChemInform Abstract: A CONVENIENT SYNTHESIS OF 7‐SUBSTITUTED NORBORNADIENES
Authors: LUH T.‐Y. , LUNG C. L.
Published: April 2016

Das Nickelocen‐Addukt (I) wird mit N‐Halogen‐succinimiden in Gegenwart von Azo‐bis‐isobutyronitril (AIBN) zu den 7‐Halogen‐norbomadienen (II) und (III) gespalten.
ChemInform Abstract: 4‐TRICYCLYLIODONIUM BIS(M‐CHLOROBENZOATE): A STABLE ALIPHATIC TRIVALENT IODINE DIESTER
Authors: MORRIS D. G. , SHEPHERD A. G.
Published: April 2016

Das aus Iodcamphen zugängliche Iodtricyclen (I) reagiert mit m‐Chlorperbenzoesäure (II) im Molverhältnis von ca. 1:3 zur Iodverbindung (III), die bei Raumtemperatur stabil ist und mit Basen in ca. 50%iger Ausbeute unter Bildung von (I) gespalten wird.
ChemInform Abstract: 4‐ACETOXYOXAZOLIUM SALTS
Authors: RYABUKHIN YU. I. , KARPENKO V. D. , DOROFEENKO G. N.
Published: April 2016

Die Mandelsäureamide (I) werden mit Ac2O/HClO4 in die bisher unbekannten Titelverbindungen (IIa) und (IIb) (X′: C103) übergeführt.
ChemInform Abstract: CROWN CATION COMPLEX EFFECTS. 15. PHASE‐TRANSFER SYNTHESIS OF ARENEDIAZOCYANIDES AND SYNTHESIS OF ARENEDIAZOSULFONES FROM ARENEDIAZONIUM CATIONS AND THE FORMATION OF REDUCED PYRIDAZINES BY 2 + 4 CYCLOADDITION REACTIONS
Authors: AHERN M. F. , LEOPOLD A. , BEADLE J. R. , GOKEL G. W.
Published: April 2016

Aus den Diazoniumsalzen (I) lassen sich mit den Reagenzien (II) (nicht katalytische Bedingungen) bzw. (IV) (Zusatz eines Kronenethers notwendig) die Diazosulfone (III) bzw. Diazocyanide (V) gewinnen.
ChemInform Abstract: α‐SUBSTITUTED PHOSPHONATES. 37. DERIVATIVES OF α‐PYRROLOMETHYLPHOSPHONIC ACID AND N‐VINYLPYRROLES
Authors: GROSS H. , BEISERT S. , COSTISELLA B.
Published: April 2016

Das α‐Aminomethanphosphonat (Ia) und seine α‐Aryl‐Derivate (Ib,c) reagieren mit dem THF (II) zu dem α‐Pyrrolomethanphosphonat (IIIa) und den α‐Aryl‐ Derivaten (IIIb,c).
ChemInform Abstract: GERMANIUM‐CONTAINING HETEROCYCLES. IV. 2,2,4,4,6,6‐HEXAPHENYL‐1,3,5‐TRIOXA‐2,4,6‐TRIGERMACYCLOHEXANE, (PH2GEO)3, A MONOPLANAR INTERMEDIATE IN THE PSEUDO‐ROTATION CYCLE FOR THE TWIST‐BOAT CONFORMATION OF A 6‐MEMBERED RING
Authors: ROSS L. , DRAEGER M. +
Published: April 2016

Die Titelverbindung (II) wird durch Hydrolyse von (I) gewonnen.
ChemInform Abstract: SOLID‐PHASE THERMAL CIS‐TRANS ISOMERIZATION OF BIS(DIAMINE)CHROMIUM(III) COMPLEXES CONTAINING D,L‐2,3‐BUTANEDIAMINE, D,L‐1,2‐CYCLOHEXANEDIAMINE, OR D,L‐2,4‐PENTANEDIAMINE
Authors: TSUCHIYA R. , UEHARA A. , YOSHIKUNI T.
Published: April 2016

Die thermische cis‐trans‐Isomerisierung der aus den entsprechenden Difluorokomplexen mit konz. HCl bzw. HBr dargestellten trans‐Komplexe (I) sowie der cis‐Derivate (I) wird sowohl derivatographisch als auch isothermisch in fester Phase untersucht.
ChemInform Abstract: KINETIC DETERMINATION OF TRANSITION METAL‐ALKYL BOND DISSOCIATION ENERGIES: APPLICATION TO ORGANOCOBALT COMPOUNDS RELATED TO B12 COENZYMES
Authors: TSOU T.‐T. , LOOTS M. , HALPERN J.
Published: April 2016

Die thermische Zersetzung von Organocobaltverbindungen (I) wurde bei 62.7°C in Pyridin in Gegenwart von n‐Octylthiol als Radikalfänger untersucht.
ChemInform Abstract: COORDINATION AND REDUCTION OF NITRIC OXIDE ON A COBALT TETRAPHENYLPORPHYRIN IMIDAZOLE COMPLEX
Authors: TSUJI K. , IMAIZUMI M. , OYOSHI A. , MOCHIDA I. , FUJITSU H. , TAKESHITA K.
Published: April 2016

Mittels IR‐ und UV‐Spektroskopie wird die NO‐Adduktbildung mit an Imidazol‐enthaltenden SiO2‐Katalysatoren gebundenem Co‐tetraphenylporphyrin untersucht.
ChemInform Abstract: SYNTHESIS AND SPECTRAL CHARACTERIZATION OF THE MIXED‐LIGAND COMPLEXES (N‐(CARBOXYMETHYL)‐L‐β‐(2‐PYRIDYL)‐α‐ALANINATO)(AMINO ACIDATO)COBALT(III), CO(N‐CM‐L‐PYALA)(AA)
Authors: MEISKE L. A. , ANGELICI R. J.
Published: April 2016

Die Titelkomplexe wurden durch Oxidation von C0504 mit H2O2, PbOg oder K,S2O8 in Gegenwart des vierzähnigen Liganden N‐(Carboxymethyl)‐L‐β‐(2‐pyridyl)‐ α‐alanin und von zweizähnigen Aminosäuren dargestellt.
ChemInform Abstract: LIGAND CONTROL OF THE MECHANISM OF PHOTOSENSITIZATION BY COPPER(I) COMPOUNDS
Authors: BORSUB N. , CHANG S.‐C. , KUTAL C.
Published: April 2016

Untersuchungen zeigen, daß der aus dem Cu(I)‐Komplex (I) und Norbornadien gebildete Grundzustand‐Komplex (II) bei Bestrahlung (3 l 3 nm) das valenzisomere Quadricyclen (III) mit mäßigen Quantenausb.
ChemInform Abstract: HEXAGONAL STRUCTURAL MODIFICATION OF (RH(4,4′‐DIISOCYANOBIPHENYL)2+CL‐)N AND TWO‐DIMENSIONAL (IR(DIISOCYANIDE)2+CL‐)N POLYMERS
Authors: EFRATY A. , FEINSTEIN I. , FROLOW F.
Published: April 2016

Die Bildung der neuen hexagonalen Modifikation des Polymeren (II) erfolgt quantitativ bei Reaktion von 4,4′‐Diisocyanobiphenyl mit dem Dimeren (I) im Molverhältnis 8, während bei niedrigerem′ Reaktantenverhältnis die Bildung der tetragonalen Modifikation begünstigt ist.
ChemInform Abstract: REACTIONS OF BINUCLEAR HYDRIDOPLATINUM COMPLEXES WITH ALKYNES
Authors: PUDDEPHATT R. J. , THOMSON M. A.
Published: April 2016

Die Reaktion des zweikernigen Hydridokomplexes (I) mit Alkinen in Methylenchlorid ergibt die Produkte (III).
ChemInform Abstract: AMINO ACIDS AND PEPTIDES. CLXXVI. 9‐(AMINOACETONE)OXYTOCIN AND 8‐(P‐AMINOBENZAMIDE)‐9‐DEGLYCINAMIDEOXYTOCIN: CHEMICAL SYNTHESIS AND PROPERTIES
Authors: HLAVACEK J. , FRIC I. , BARTH T. , JOST K.
Published: April 2016

Die Analogen (Ib) und (Ic) von Oxytocin (Ia) werden durch Kondensation des entsprechenden N‐ terminalen Hexapeptids mit entsprechenden Peptiden (d.h.
ChemInform Abstract: DIRECT AND EFFICIENT SYNTHESIS OF β‐L‐RHAMNOPYRANOSIDES
Authors: IVERSEN T. , BUNDLE D. R.
Published: April 2016

Methyl‐a‐L‐rhamnopyranosid (I) wird über die Derivate (IIa) und (IIb) mit den Zuckern (III) bzw. (IV) in die Disaccharide (V) übergeführt.
ChemInform Abstract: N‐MOLYBDENUM DISELENIDE PHOTOELECTROCHEMICAL HALOGEN STORAGE CELL
Authors: ANG P. G. P. , SAMMELLS A. F.
Published: April 2016

Einkristalline n‐MoSez ‐Photoanoden werden in einer Reihe von Halogen‐Redoxpaaren untersucht.
ChemInform Abstract: HIGH‐RESOLUTION NMR SPECTROSCOPY OF QUADRUPOLAR NUCLEI IN SOLIDS: SODIUM SALTS
Authors: OLDFIELD E. , SCHRAMM S. , MEADOWS M. D. , SMITH K. A. , KINSEY R. A. , ACKERMAN J.
Published: April 2016

Es wird gezeigt, daß hochaufgelöste Festkörperspektren für 23 Na‐Kerne mit e′ qQ/h‐ Werten bis zu 2‐3 MHz leicht durch selektive Aufzeichnung des (1 /2,‐l /2)‐Spin‐ übergangs unter den Bedingungen schneller Probenrotation zugänglich sind.
ChemInform Abstract: Eigenschaften von Cu‐Pb‐Legierungen im metastabilen und Gleichgewichtszustand.
Authors: SAVITSKY E. M. , JEFIMOV JU. V. , FROLOVA T. M. , OMAROVA G. T. , RAUB CH. J. , KHAN H. R.
Published: April 2016

Gefüge, Härte, Elastizitätsmodul, elektrischer Widerstand, Supraleitung und magnetische Suszeptibilität von bei 20°C metastabilen und stabilen Cu‐Pb‐Legierungen werden bestimmt und der Einfluß einer Wärmebehandlung auf diese Eigenschaften untersucht.
ChemInform Abstract: ABSOLUTE CONFIGURATION OF 1,3‐DI‐TERT‐BUTYLPROPARGYL ALCOHOL. BORDEN‐COREY STEREOCHEMISTRY CONFIRMED
Authors: BUTLER W. M. , TANAKA Y. , KOREEDA M.
Published: April 2016

Aus dem Di‐tert.‐butyl‐propinol (I) erhält man über den Ester mit D‐Campher‐IO‐sulfonsäure (II) durch Lithium‐alanat‐Reduktion das 1,3‐Ditert.‐butyl‐allen (III).
ChemInform Abstract: PALLADIUM‐CATALYZED ALLYLIC OXIDATION OF OLEFINS BY TERT‐BUTYL HYDROPEROXIDE AND TELLURIUM(IV) OXIDE
Authors: UEMURA S. , FUKUZAWA S.‐I. , TOSHIMITSU A. , OKANO M.
Published: April 2016

Verbindungen mit olefinischen Doppelbindungen wie (I), (IV) und (VII) liefern bei der durch PdCl2 katalysierten Behandlung mit Silberacetat, tert.‐Butylhydroperoxid und Tellurdioxid in Essigsäure vorwiegend die entsprechenden Alkylacetate.
ChemInform Abstract: MECHANISM OF SODIUM DITHIONITE REDUCTION OF ALDEHYDES AND KETONES
Authors: CHUNG S.‐K.
Published: April 2016

Die Reduktion der Ketone (I) und (III) mit Natriumdithionit ergibt die Alkohole (II) bzw. (IV).
ChemInform Abstract: SYNTHESIS AND DIELS‐ALDER REACTIONS OF 1‐ACYLATED 1,3‐CYCLOPENTADIENES
Authors: GRUNDKE G. , HOFFMANN H. M. R.
Published: April 2016

Cyclopentadienylthallium (I) und Acyliodide (II) kondensieren zu den Acyl‐cyclopentadienen (III), die mit Acetylendicarbonsäuredimethylester (IV) zu den Diels‐Alder‐Addukten (V) reagieren.
ChemInform Abstract: DEHYDROGENATION OF AMINES. AN APPROACH TO IMINES AND ALDEHYDES
Authors: TROST B. M. , LIU G.
Published: April 2016

Aus den sekundären Aminen (I), deren Herstellung z.Tl. beschrieben ist, erhält man mit den Sulfmylchloriden (II) oder auch aus den Bromiden (IV) und den Sulfinamiden (V) die substituierten Sulfinamide (III), deren Thermolyse zu den Iminen (VI) führt.
ChemInform Abstract: CONVERSION OF 3‐AZIDO‐5‐PHENYL‐1,2,4‐OXADIAZOLE INTO BENZOYL CYANIDE; A NEW THERMAL FRAGMENTATION
Authors: CHOI P. , REES C. W. , SMITH E. H.
Published: April 2016

Aus 3‐Brom‐5‐phenyl‐1,2,4‐oxadiazol (Ia) erhält man das Azid (Ib) ohne Nebenprodukte von Austauschreaktionen nur bei der Verwendung von KN3 in Gegenwart von [18]Krone‐6. Die Pyrolyse von (Ib) führt unter Abspaltung von Stickstoff zu Benzoylcyanid (II).
ChemInform Abstract: PHARMACOMODULATION OF THE BENZOXAZOLINONE MODEL BY ARYL‐PIPERAZINE STRUCTURE
Authors: BERMANN M.‐C. , BONTE J.‐P. , LESIEUR‐DEMARQUILLY I. , DEBAERT M. , LESIEUR D. , LEINOT M. , BENOIT J. , LABRID C.
Published: April 2016

Die Verbindungen (I) (n: 1) wurden durch Mannich‐Reaktionen der entsprechenden N‐Aryl‐piperazine mit Formaldehyd und den entsprechenden Benzoxazolinonen die Verbindungen (I) (n: 2, 3) durch Kondensation der entsprechenden 1‐(2‐Chlorethyl)‐ bzw. 1‐(3‐Chlorpropyl)‐4‐arylpiperazine und Benzoxazolinone dargestellt (Ausb. 35‐96%).
ChemInform Abstract: FUNCTIONAL DERIVATIVES OF TRIMETHYLPHOSPHINE. XIV. TRIS(DIMETHYLTHIOPHOSPHINYL)METHANIDE: A NOVEL, MESOMERIC‐STABILIZED CARBANION
Authors: KARSCH H. H.
Published: April 2016

Tris‐[dimethylthiophosphinyl]‐methan (II) wird durch Lithiierung des Bis‐[thiophosphinyl]‐methans (I) und anschliessende Umsetzung mit Dimethylthiophosphinsäurechlorid erhalten.
ChemInform Abstract: FUNCTIONAL DERIVATIVES OF TRIMETHYLPHOSPHINE. XV. (CHLOROMETHYL)DIMETHYLPHOSPHINE
Authors: KARSCH H. H.
Published: April 2016

Die Titelverbindung (II), die bei Raumtemp. instabil ist, wird durch Umsetzung des Chloro‐Analogen (I) mit Methyl‐Li in mäßigen Ausb. synthetisiert.
ChemInform Abstract: BEHAVIOR OF SOME ORGANOPHOSPHORUS(V) COMPOUNDS IN STRONGLY ACIDIC SOLVENTS. PART 2. DIPHENYLPHOSPHINIC ACID, DIPHENYLPHOSPHINIC CHLORIDE, TRIPHENYLPHOSPHINE OXIDE, TRIPHENYLPHOSPHINE SULFIDE, AND METHYLPHOSPHONIC DICHLORIDE
Authors: DILLON K. B. , NISBET M. P. , WADDINGTON T. C.
Published: April 2016

31P‐NMR‐spektroskopische Untersuchungen der Reaktion der Titelverbindungen mit starken Säuren (100% H2SO4 , HSClO3 , Oleum 25 und 65) bestätigen eine Protonierung am Phosphoryl‐O‐Atom der Phosphorylverbindungen als Initialreaktion (Ph3PS scheint nicht protoniert zu werden).
ChemInform Abstract: SYNTHESIS AND RING‐OPENING REACTIONS OF FUNCTIONALIZED SULTINES. NEW APPROACH TO SPARSOMYCIN
Authors: LISKAMP R. M. F. , ZEEGERS H. J. M. , OTTENHEIJM H. C. J.
Published: April 2016

Die Cystein‐Derivate (IIa) werden nach Reduktion zu den Alkoholen (IIb) durch Umsetzung mit N‐Chlorsuccinimid (NCS) in Essigsäure in die Sultine (III) übergeführt.
ChemInform Abstract: FLUORESCENCE SPECTRA OF LIGHTLY AND HEAVILY DOPED THALLIUM‐ACTIVATED AMMONIUM CHLORIDE
Authors: REDDY B. S. P. , JOSHI R. V. , PRASAD L. H. H. , JOSHI T. R.
Published: April 2016

Die Anregungs‐ und Emissionsspektren von reinem und mit T1 aktiviertem NH4Cl werden bei 20°C untersucht.
ChemInform Abstract: CATALYSIS BY HETEROPOLY COMPOUNDS. III. THE STRUCTURE AND PROPERTIES OF 12‐HETEROPOLYACIDS OF MOLYBDENUM AND TUNGSTEN (H3PMO12‐XWXO40) AND THEIR SALTS PERTINENT TO HETEROGENEOUS CATALYSIS
Authors: MISONO M. , MIZUNO N. , KATAMURA K. , KASAI A. , KONISHI Y. , SAKATA K. , OKUHARA T. , YONEDA Y.
Published: April 2016

Die grundlegenden Eigenschaften von 12‐Heteropolysäuren des Mo und W, wie Struktur, Oberfläche, Acidität und Redoxmechanismus im festen Zustand werden im Hinblick auf die heterogene Katalyse untersucht.
ChemInform Abstract: PREPARATION AND CRYSTAL STRUCTURE OF ARSENIC(III) PHOSPHORUS(V) OXIDE, ASPO4
Authors: BODENSTEIN D. , BREHM A. , JONES P. G. , SCHWARZMANN E. , SHELDRICK G. M.
Published: April 2016

Zur Darstellung der Titelverbindung wird ein 1:1‐Gemisch von kubischem As2O3 und hexagonalem P2O5 im evakuierten Quarzrohr auf 673 Kerhitzt, wobei in Gegenwart von H,O‐Dampf‐Spuren während einiger Tage chemischer Transport stattfindet und bei 623 Kfarblose quaderförmige Kristalle von AsPO4 abgeschieden werden.
ChemInform Abstract: MAGNETIC EXCHANGE IN IMIDAZOLATE‐BRIDGED COPPER(II) COMPLEXES
Authors: KOLKS G. , LIPPARD S. J. , WASZCZAK J. V. , LILIENTHAL H. R.
Published: April 2016

Temp.‐abhängige (4.2‐300 K) magnetische Suszeptibilitätsuntersuchungen werden an einer Reihe imidazolatverbrückter Komplexe (I)‐(IV) durchgeführt.
ChemInform Abstract: THE MICELLE‐CATALYZED HYDROLYSIS OF BENZYLPENICILLIN
Authors: GENSMANTEL N. P. , PAGE M. I.
Published: April 2016

Die Hydrolyse von Benzylpenicillin wird im Bereich geringer Konzentration, 2‐ 10"′ Mmit 0.05 molarer NaOH durch micellares Cetyltrimethylammoniumbromid von O.68‐1O′2 auf 12.44‐ 10 /s bis auf das 50fache beschleunigt.