bluuebunny/crossref_metadata_2025 huggingface dataset:
Active Steerable Catalytic Supraparticles Shuttling on Preprogrammed Vertical Trajectories
Authors: Sperling Marcel , Kim Hyung‐Ju , Velev Orlin D. , Gradzielski Michael
Published: May 2016

This study presents a novel type of mm‐sized colloidal supraparticle performing self‐propelled oscillating motion that can be programmed on a controlled 3D trajectory. These supraparticles are self‐assembled inside drying aqueous colloidal suspension droplets on a superhydrophobic surface. The droplets contain silica microspheres as main colloidal building block and Pt‐covered Fe3O4 nanoparticles as catalyst. The supraparticles are rendered patchy by attracting the magnetic catalyst nanoparticles to one side of the droplet during the assembly. Catalytic decomposition of H2O2 leads to vertical motion by buoyancy of formed bubbles. This study comprehensively analyzes this motion in terms of the vertical oscillation frequency that depends on H2O2 “fuel” concentration as well as on the supraparticles density. It is demonstrated that the magnetic functionality can be used to manipulate the particle's trajectory to access nearly any place within the vessel. Furthermore, after binding of α‐amylase to the particle surface it is shown that their motion leads to rapid catalytic decomposition of a blue starch–iodine complex within the whole medium. Thus, these functional supraparticles can find versatile applications in a new generation of highly efficient catalysts, microstirrers and self‐motile microshuttles that can perform designed tasks while being able to access every point in the liquid in controlled trajectories.
Protein‐losing enteropathy with intestinal lymphangiectasia in skeletal dysplasia with Lys650Met mutation
Authors: Yang Chen , Dehner Louis P.
Published: May 2016

Protein‐losing enteropathy is a primary or secondary manifestation of a group of conditions, and etiologies which are broadly divisible into those with mucosal injury on the basis of inflammatory and ulcerative conditions, mucosal injury without erosions or ulcerations, and lymphatic abnormalities. We describe the first case of protein‐losing enteropathy in a pediatric patient, with severe skeletal dysplasia consistent with thanatophoric dysplasia type I and DNA analysis that revealed a c.1949A>T (p.Lys650Met) in exon 15 of the FGFR3 gene. She presented with protein‐losing enteropathy in her 6th month. Post‐mortem examination revealed lymphangiectasia in the small intestine. To our knowledge, this is the first report of intestinal lymphangiectasia as a complication of skeletal dysplasia resulting in severe protein‐losing enteropathy. © 2016 Wiley Periodicals, Inc.
Effect of the exposure time on the structure and performance of hydrophobic polydimethylsiloxane–poly(vinylidene fluoride) membranes via a non‐solvent‐induced phase separation process in a clean room
Authors: Zhang Heiyan , Li Bingbing , Sun De , Li Dayong , Li Jing , Shao Xiaofeng
Published: May 2016

The objective of this study was to investigate the effects of the exposure time on the properties and permeability of polydimethylsiloxane (PDMS)–poly(vinylidene fluoride) (PVDF) blend hydrophobic microporous membranes, which were fabricated via a non‐solvent‐induced phase separation process at 25 °C and 60% relative humidity in a clean‐room circumstance. For the prepared PDMS–PVDF membranes, the membrane morphologies were observed by scanning electron microscopy. Crystalline structures were observed by X‐ray diffraction. Pore structures were analyzed by membrane porosity and mean pore size. Hydrophobicity was measured by contact angle measurement, and the mechanical properties were characterized by tensile strength testing. Our study results show that with increasing exposure time from 10 to 110 s, all of the membranes showed a similar pore structure: a spongelike substrate layer with a thin realm of fingerlike structures under the top surface. Phase separation between PDMS and PVDF occurred. The membrane porosity and mean pore radius decreased, and the membrane thickness increased. The membrane hydrophobicity decreased, and the mechanical properties first increased and then decreased. In addition, vacuum membrane distillation experiments were conducted. With the increase in the exposure time from 10 to 110 s, the membrane permeate flux decreased from 16.54 to 6.65 kg m−2·h−1, and the salt rejection was higher than 99.9%. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43842.
Poly1‐hexene: New impact modifier in HIPS technology
Authors: Hanifpour Ahad , Bahri‐Laleh Naeimeh , Nekoomanesh‐Haghighi Mehdi , Mirmohammadi Seyed Amin
Published: May 2016

Poly1‐hexene was prepared using a conventional heterogeneous Ziegler–Natta catalyst and its stereoregularity was characterized using 13C‐NMR analysis. New kind of high impact polystyrene (HIPS) was prepared by radical polymerization of styrene in the presence of different amounts of synthesized poly1‐hexene (PH) as impact modifier (HIPS/PH) and compared with conventional high impact polystyrene with polybutadiene (HIPS/PB) as rubber phase. Scanning electron microscopy (SEM) revealed that the dispersion of poly1‐hexene in polystyrene matrix was more uniform compared with it in HIPS/PB. The impact strength of HIPS/PH was 29–79% and 80–289% higher than that in HIPS/PB and neat polystyrene, respectively. FTIR was used to confirm more durability of HIPS/PH samples toward ozonation. To study the effect of rubber type and amount on the Tgs of polystyrene, differential scanning calorimetry was employed. Results obtained from TGA demonstrated higher thermal stability of HIPS/PH sample in comparison with conventional HIPS/PB one. Our obtained results suggest new high impact polystyrene that in all studied aspects has better performance than the conventional HIPS. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43882.
On the treatment of binary data by means of ranks
Authors: Bennett B. M.
Published: May 2016

The justification of the use of mid‐ranks in proposing test statistics for hypotheses involving binary data is discussed and illustrated for several situations, including the ‘index of dispersion’ in 2 × k contingency tables (e.g. Fisher, 1954), the Mantel‐Haenszel (1959) hypothesis of equality of relative risk in a series of 2 × 2 contingency tables, and finally the problem of quantal assays (e.g. Finney, 1964).
Some aspects of distribution theories in quantitative genetics I. Some general results
Authors: Tan W. Y.
Published: May 2016

This paper derives the probability distributions of quantitative genetics for more general quantitative genetic models. Under the assumption of normal environmental disturbances, it is shown that the probability distributions of phenotypic values in segregating populations are in general mixtures of normals. The mixing proportion in the population is then derived for various mating systems. As an extension of the results, the joint distribution of two linked quantitative characters is also derived as mixtures of bivariate normals.
Combined metabolomics and proteomics reveals hypoxia as a cause of lower productivity on scale‐up to a 5000‐liter CHO bioprocess
Authors: Gao Yuanwei , Ray Somak , Dai Shujia , Ivanov Alexander R. , Abu‐Absi Nicholas R. , Lewis Amanda M. , Huang Zhuangrong , Xing Zizhuo , Borys Michael C. , Li Zheng Jian , Karger Barry L.
Published: May 2016

Large‐scale bioprocessing is key to the successful manufacturing of a biopharmaceutical. However, cell viability and productivity are often lower in the scale‐up from laboratory to production. In this study, we analyzed CHO cells, which showed lower percent viabilities and productivity in a 5‐KL production scale bioreactor compared to a 20‐L bench‐top scale under seemingly identical process parameters. An increase in copper concentration in the media from 0.02 µM to 0.4 µM led to a doubling of percent viability in the production scale albeit still at a lower level than the bench‐top scale. Combined metabolomics and proteomics revealed the increased copper reduced the presence of reactive oxygen species (ROS) in the 5‐KL scale process. The reduction in oxidative stress was supported by the increased level of glutathione peroxidase in the lower copper level condition. The excess ROS was shown to be due to hypoxia (intermittent), as evidenced by the reduction in fibronectin with increased copper. The 20‐L scale showed much less hypoxia and thus less excess ROS generation, resulting in little to no impact to productivity with the increased copper in the media. The study illustrates the power of 'Omics in aiding in the understanding of biological processes in biopharmaceutical production.
One American Perspective on the Rights of Accused: An Initial Survey of Miranda Rights in a Broader Context
Authors: Rogers Richard , Sharf Allyson J. , Clark John W. , Drogin Eric Y. , Winningham Darby B. , Williams Margot M.
Published: May 2016

In the wake of countless police dramas, commonly held misperceptions endure that the American public knows both Miranda warnings and concomitant rights. Past research has tested public knowledge of Miranda per se, without evaluating additional misconceptions. The current investigation utilizes the European Union's much more all‐encompassing safeguards, as delineated in the EU's 2012 Directive and Letter of Rights. Besides knowledge of Miranda, the advisability of these enhanced rights and protections was also assessed. In order to obtain a cross‐section of the community, 619 participants were recruited from actual jury pools. Interestingly, they believed that Miranda afforded arrestees many more protections than it actually does. In general, nearly all (>90%) agreed that the accused should be given accurate information (e.g., charges and alleged criminal acts) coupled with an absence of police deception. The potential implications of these findings are discussed as they relate to police practices and due process. Copyright © 2016 John Wiley & Sons, Ltd.
Outcome of paravalvular leak repair after transcatheter aortic valve replacement with a balloon‐expandable prosthesis
Authors: Dhoble Abhijeet , Chakravarty Tarun , Nakamura Mamoo , Abramowitz Yigal , Tank Rikin , Mihara Hirotsugu , Mangat Geeteshwar , Jilaihawi Hasan , Shiota Takahiro , Makkar Raj
Published: May 2016

Background

Significant paravalvular leak (PVL) occurs in up to 13% of patients after transcatheter aortic valve replacement (TAVR) with a balloon‐expandable bioprosthesis. Transcatheter PVL repair has emerged as a less invasive alternative for this problem.

Objectives

The aim of this study was to evaluate the safety, feasibility, and clinical outcomes of transcatheter PVL repair after TAVR with balloon‐expandable valve.

Methods

We retrospectively identified 15 patients who underwent 16 PVL repair procedures after the TAVR at our center. Procedural characteristics, results, and clinical outcomes were analyzed. The association of PVL repairs with subsequent hospitalizations and mortality was assessed and compared to 57 patients who did not undergo repair for at least moderate PVL after TAVR.

Results

The PVL repair was successful in 13 (87%) patients, without significant procedure or device related complications. In patients with successful PVL repair, there was an improvement in symptom status, subsequent hospitalizations, and B‐type natriuretic peptide levels. There was 1 (out of 13, 8%) death in the group of patients who successfully underwent PVL repair whereas 24 (out of 57, 42%) patients died during follow up in the group that did not undergo repair of their PVL. Similarly, there was significant reduction in the subsequent heart failure related hospitalization after the PVL repair, compared with the patients who did not undergo PVL repair (P = 0.03).

Conclusion

Transcatheter repair of PVL after TAVR can be safely and effectively accomplished in carefully selected patients, and may lead to reduction in hospitalizations, improvement in symptoms, and long‐term survival. © 2016 Wiley Periodicals, Inc.
Relationship of mitral valve annulus plane and circumflex‐right coronary artery plane: Implications for transcatheter mitral valve implantation
Authors: Kapadia Samir R. , Mentias Amgad , Barakat Amr F. , Raza Mohammad Q. , Lal Poddar Kanhaiya , Baeza Cristian , Maluenda Gabriel , Navia Jose , Schoenhagen Paul , Murat Tuzcu E.
Published: May 2016

Aim

Transcatheter mitral valve implantation (TMVI) is a novel technology for patients with severe mitral valve disease but at high surgical risk. Imaging guidance during the procedure is critical for successful device deployment. Identification of the mitral annular plane (MAP) with fluoroscopy during the procedure is limited by lack of clearly defined landmarks. We hypothesized that a plane defined by left circumflex‐right coronary arteries (LCX‐RCA) would have a consistent relationship to MAP.

Methods and results

We studied 25 patients with gated cardiac computed tomography. We identified the MAP and the LCX‐RCA plane in mid systole and diastole. The distance between the two planes in prespecified four points (anterior, posterior, medial, and lateral) in the apical 2 and 3‐chamber views. Alignment of the planes was described by cranial/caudal angulation for both planes in RAO 30° and LAO 90° (lateral) angulation. Mean age was 81 ± 9 years, 56% of patients had ≥2+ mitral regurgitation. In mid systole, the distances between the LCX‐RCA plane and the MAP in the four points were < 5 mm in 92% of patients. In mid diastole, distances were < 5 mm in 100% of patients. In mid systole, the correlation between the caudal/cranial orientations of the 2 planes was 0.85 and 0.80 in the LAO 90° and RAO 30°, respectively (P = <0.001). In mid diastole, this was 0.92 and 0.92 in the LAO 90° and RAO 30°, respectively (P = <0.001).

Conclusion

LCX‐RCA plane has a close and consistent relationship to the MAP and can be useful to guide TMVI.

Accurate imaging of mitral valve annular plane during TMVI procedure is challenging. MAP guided by fluoroscopy might be crucial to guide successful prosthesis deployment. A plane defined by the left circumflex‐ right coronary arteries in the atrioventricular grove has a consistent relationship with MAP; this can be used aided by pre‐procedural MDCT to guide TMVI procedure. © 2016 Wiley Periodicals, Inc.
Novel, Highly Conductive Pt/TiO2 Thin‐Film Model Catalyst Electrodes: The Role of Metal–Support Interactions
Authors: Gebauer Christian , Hoffmann Doris , Jusys Zenonas , Behm R. Jürgen
Published: May 2016

Toward the aim of better understanding of metal–support interactions in oxide‐supported Pt electrocatalysts, planar Pt/TiO2 model catalyst electrodes that combine high conductivity and direct Pt–TiO2 interactions are prepared and characterized. These consist of thin TiO2 films decorated with Pt nanoparticles on a glassy carbon substrate. TiO2 films are deposited by using a potential‐induced sol–gel process and subsequently functionalized with Pt nanoparticles, by electrochemical Pt deposition, deposition of pre‐formed Pt nanoparticles or by photo‐assisted local reduction of Pt ions. Scanning electron microscopy, transmission electron microscopy and X‐ray photoelectron spectroscopy are used for structural and electronic characterization of the model catalyst electrodes, as are cyclic voltammetry, electrooxidation of pre‐adsorbed CO and O2 reduction for evaluating their electrochemical/electrocatalytic properties. The impact of the Pt deposition method, of particle size effects and of metal–support interactions on the electrochemical properties and the catalytic activity/selectivity of these systems is discussed.
ChemInform Abstract: Optical Spectra, X‐Ray Photoelectron Spectra and XANES of Divalent Nickel in Mixed Spinels NiFe2‐xCrxO4
Authors: LENGLET M. , D'HUYSSER A. , JOERGENSEN C. K.
Published: May 2016

(0 ≤ x ≤ 2) have been measured at room temperature.
ChemInform Abstract: Anionic Rearrangements of syn‐ and anti‐7‐Cyclopentenyl‐7‐hydroxynorbornenes. The Case for Sequential Ring Cleavage and Intramolecular Michael Addition.
Authors: PAQUETTE L. A. , PIERRE F. , COTTRELL C. E.
Published: May 2016

The mechanistic processes which act in the reactions of several syn‐ and anti‐norbornenols such as (III)‐(VI) with iodine‐pretreated KH in THF are investigated and discussed in detail.
ChemInform Abstract: Wittig‐Horner Reaction and Transformations of Aldehydes and Ketones into Higher Amines. Part 1. A New Rearrangement: Iminophosphonates‐ Phosphoramidates. Evidence and Investigation.
Authors: HEYMES A. , CHEKROUN I.
Published: May 2016

The iminophosphonate (Ia), prepared from the corresponding aminomethylphosphonate and o‐chlorobenzaldehyde, undergoes Wittig‐Horner reaction with the thiophenecarbaldehyde (II).
ChemInform Abstract: Photochemistry of (η5‐idenyl)2Fe2(CO)4 in the Presence of 2e‐ Donor Ligands: Reversible Formation of the Radicals (indenyl)Fe(CO)2L.
Authors: WUU Y.‐M. , ZOU C. , WRIGHTON M. S.
Published: May 2016

Irradiation of the dimeric title complex (I) in the presence of CCl4 or Mn2(CO)10 gives the mononuclear compounds (II) or (IV).
ChemInform Abstract: Selective Oxidations with Activated Carbon: Application to Substrates Containing Acidic Methine and Methylene Groups.
Authors: ANANDA G. D. S. , CREMINS P. J. , STOODLEY R. J.
Published: May 2016

Activated charcoal is employed as a mediator in the oxidation of several unsaturated compounds: the cephem dioxide (I) and the enone (IIIa) are converted to the allylic alcohols (II) and (IIIb) respectively.
ChemInform Abstract: A New Synthesis and the Crystal Structure Analysis of “Croconate Blue”, 1,2,4‐Tris(dicyanomethylene)croconate.
Authors: AUCH J. , BAUM G. , MASSA W. , SEITZ G.
Published: May 2016

In the condensation product (III) the two dimethylamino groups can be replaced by the anion of (II).
ChemInform Abstract: Amberlyst‐A21 as a New and Efficient Surface Catalyst for the Conjugate Addition of Nitroalkanes to Methyl Acrylate: An Improved Synthesis of Methyl 4‐Nitro‐ and 4‐Oxoalkanoates.
Authors: BALLINI R. , PETRINI M. , ROSINI G.
Published: May 2016

Michael addition of the nitroalkanes (I) to methyl acrylate (II) gives the 4‐nitroalkanoic esters (III) which are converted to the 4‐oxoalkanoic esters (IV) by a Nef reaction using potassium permanganate as the oxidant.
ChemInform Abstract: Reactions on Heterocycles Containing the 2‐Acyl‐2‐propenone Structure. Part 5. (1)Benzopyrano(4,3‐b)pyridine‐2,5(2H,5H)‐diones by Cyclization of 3‐Substituted 4‐Aminocoumarins.
Authors: HEBER D.
Published: May 2016

The 4‐chlorocoumarin‐3‐carbaldehyde (I) undergoes Wittig reaction with the methoxycarbonylmethylidenephosphorane (II), producing the benzopyranylacrylates (III).
ChemInform Abstract: Reactivity of 5‐Hydroxymethylpyridazin‐3(2H)‐ones Toward Organomagnesium Halides.
Authors: SHAMS N. A. , SOLIMAN E. A. , HAMED A. A. , DONIA S. A.
Published: May 2016

The arylhydroxymethylpyridazinones (I) react with the Grignard compounds (II) to produce a mixture of the pyridazine (III) and (IV).
ChemInform Abstract: Reactions with 2‐Aminobenzimidazole: Synthesis of Several New Pyrimido‐(1,2‐a)benzimidazole Derivatives.
Authors: ABDELHAMID A. O. , RIAD B. Y. , AZIZ S. I.
Published: May 2016

The α‐(het)arylmethylidene nitriles (I), which are prepared from the corresponding aldehydes and 2‐substituted acrylonitriles, react with 2‐aminobenzimidazole (II) to yield the pyrimidobenzimidazole derivatives (III), (IV), or (VI).
ChemInform Abstract: Dithia‐diaza(n.2)paracyclophane‐enes.
Authors: FUNKE U. , GRUETZMACHER H.‐F. +
Published: May 2016

The title compounds (VIII) are synthesized as shown in the scheme using the high dilution technique in the step leading to (VII).
ChemInform Abstract: Transition‐Metal‐Promoted Reactions of Boron Hydrides. Part 10. Rhodium‐Catalyzed Syntheses of B‐Alkenylborazines.
Authors: LYNCH A. T. , SNEDDON L. G.
Published: May 2016

Rh catalysis promotes the one‐step reaction of borazine (I) with the alkynes (II) to give the products (III) and (IV) which can be converted to polymeric B‐N materials.
ChemInform Abstract: Synthesis, Reactions, and Stereochemical Correlations of an Optically Active Tervalent Phosphorus Thio Ester.
Authors: SZAFRANIEC L. J. , SZAFRANIEC L. L. , AARON H. S.
Published: May 2016

The optically pure phosphinate (Ia) is converted to the tervalent phosphorus derivative (III) which shows loss of enantiomeric purity due to partial racemization.
ChemInform Abstract: Phosphine‐Substituted Chelate Ligands. Part 22. α‐Phosphorus‐Substituted N‐Methyl Carboxylic Acid (Thio)Amides.
Authors: KUNZE U. , KRUPPA V.
Published: May 2016

The α‐diphenylphosphanocarboxylic thioamide (IIIc) is prepared from diphenylbenzylphosphane (Ic) and methyl isothiocyanate (II) in the presence of butyllithium.
ChemInform Abstract: Reaction of Bulky Monosubstituted Phosphorus(III) Halides with Disodium Pentacarbonylchromate. Steric and Electronic Factors in the Synthesis of Cr(CO)5 Complexes of Diphosphenes, Phosphinidenes, Phosphanes, Diphosphanes, and Cyclopolyphosphanes.
Authors: BARTLETT R. A. , DIAS H. V. R. , FLYNN K. M. , HOPE H. , MURRAY B. D. , OLMSTEAD M. M. , POWER P. P.
Published: May 2016

The title reactions lead to at least nine different types of products (depending on the size and electronic properties of the substituent on P) as to be seen from the scheme.
ChemInform Abstract: Dynamic Behavior of Dicobalt Hexacarbonyl Propargyl Cations and Their Reactions with Chiral Nucleophiles.
Authors: SCHREIBER S. L. , KLIMAS M. T. , SAMMAKIA T.
Published: May 2016

The dynamic behavior of several dicobalt hexacarbonyl propargyl cations is investigated by variable temp. 1H and 13C NMR methods.
ChemInform Abstract: O‐Glycosyl Imidates. Part 29. Reaction of O‐(Glucopyranosyl) Imidates with Electron‐Rich Heterocycles. Synthesis of C‐Glucosides.
Authors: SCHMIDT R. R. , EFFENBERGER G.
Published: May 2016

Reaction of the glucosylimidates (Ia) or (Ib) with furans (II) yields the derivatives (III) from which various sequential products such as (V) (VII), (IX) are obtained.
ChemInform Abstract: New Aspects of β‐Lactam Chemistry: β‐Lactams as Chiral Building Blocks
Authors: OJIMA I. , SHIMIZU N. , QIU X. , CHEN H.‐J. C. , NAKAHASHI K.
Published: May 2016

Review: (44 refs.
ChemInform Abstract: Crystal Structures of Acid Hydrates and Oxonium Salts. Part 28. On the Highest Hydrates of Sulfuric Acid: Formation and Structure of H2SO4·6.5 H2O and H2SO4·8 H2O.
Authors: MOOTZ D. , MERSCHENZ‐QUACK A.
Published: May 2016

A reinvestigation of the phase diagram of the H2SO4‐H2O systems in the range 80‐100 mol% H2O (DTA, XRD) confirms the existence of the title hydrates.
ChemInform Abstract: A Non‐Stereospecific Diels‐Alder Reaction.
Authors: MEIER H. , ECKES H.‐L. , NIEDERMANN H.‐P. , KOLSHORN H.
Published: May 2016

In the Diels‐Alder reaction of (II) the E olefin (IIIa) is added strictly stereospecifically, while the configuration of (IIIb) is inverted totally.
ChemInform Abstract: DABCO‐Catalyzed Coupling of Aldehydes with Activated Double Bonds. Part 7. Stereoselective Synthesis of (E)‐3‐Methylene‐4‐alken‐2‐ones from Aldehydes and Methyl Vinyl Ketone and Their Spontaneous Dimerization.
Authors: HOFFMANN H. M. R. , EGGERT U. , POLY W.
Published: May 2016

The reaction of the aldehydes (I) with the ketone (II) yields the products (III) (no yields given).
ChemInform Abstract: Synthesis of 2‐Amino‐3‐aryl‐1,4‐naphthoquinones from 2‐Arylidenindan‐1,3‐diones.
Authors: KRYSIN M. YU. , ANOKHINA I. K. , ZALUKAEV L. P.
Published: May 2016

The 2‐arylidenindandiones (I) react with NaN3 to yield the title compounds (III), which are probably formed via 1,2,3‐triazole intermediates.
ChemInform Abstract: Phosphorus Compounds of Unusual Coordination. Part 23. Mono‐ and Diphosphatricyclo(3.2.1.02,7)oct‐3‐enes: Synthesis from 1,3‐ and 1,4‐ Dienes and a Stable Phosphaalkyne.
Authors: FUCHS E. P. O. , ROESCH W. + , REGITZ M.
Published: May 2016

The title compounds (IV) and (VI) are obtained via Diels‐Alder reaction of the phosphaalkyne (II) with the dienes (I) and (V) followed by ene‐reaction with a second mol of (II) and subsequent intramolecular (4+2) cycloaddition.
ChemInform Abstract: Phosphinecarboxylate Ligands Formed by the Insertion of Carbon Dioxide into Metal‐Phosphido Bonds. Preparation and Structural Characterization of Tetrakis(di‐tert‐butylphosphinecarboxylato)dimolybdenum.
Authors: BUHRO W. E. , CHISHOLM M. H. , FOLTING K. , HUFFMAN J. C.
Published: May 2016

The phosphido‐amido complex (I) and excess CO2 (II) react to give the mixed‐ligand complex (III) with a Mo‐Mo triply bond.
ChemInform Abstract: Conversion of a .mu±eta.2‐Acetylide to a .mu±eta.2‐||‐Acetylene via Successive Nucleophilic Additions. X‐Ray Structure of Os2(CO)6(.mu±eta.2‐C(C(NH‐t‐Bu)(S‐n‐Bu))‐CPh)(μ‐PPh2).
Authors: CHERKAS A. A. , CARTY A. J. , SAPPA E. , PELLINGHELLI M. A. , TIRIPICCHIO A.
Published: May 2016

The diosmium acetylide complex (I) is converted in two stages to the parallel acetylene derivative (V) according to the scheme.
ChemInform Abstract: Reductive Desorption of Iodine from Platinum Electrodes. A Comparison in Protic and Aprotic Solvents.
Authors: BRAVO B. G. , RODRIGUEZ J. F. , MEBRAHTU T. , SORIAGA M. P.
Published: May 2016

Experimental measurements based on thin‐layer electrochemical techniques in water, mixed water‐MeCN, and anhydrous MeCN, show the cathodic stripping of chemisorbed iodine to be coupled with hydrogen chemisorption which results in a net two‐electron, reversible and pH‐dependent process.
ChemInform Abstract: Chiral Molecular Recognition in Small Bimolecular Systems: A Spectroscopic Investigation into the Nature of Diastereomeric Complexes.
Authors: PIRKLE W. H. , POCHAPSKY T. C.
Published: May 2016

Solution 1H NMR measurements of chemical shift changes as a function of concentration and temp., UV‐VIS studies of CT bands associated with the formation of the diastereomeric complexes, and T1 and intra‐ and intermolecular NOE studies are performed on solutions of each enantiomer of (II) and the (S)‐(I).
ChemInform Abstract: Cyclobutene Photochemistry. Nonstereospecific Photochemical Ring Opening of Simple Cyclobutenes.
Authors: CLARK K. B. , LEIGH W. J.
Published: May 2016

The photochemistry of the title compounds (I), (V), (Xa), and (Xb) is investigated in hydrocarbon solution with monochromatic far‐ultraviolet (185 or 193 nm) light sources.
ChemInform Abstract: N‐(Benzenesulfonyl)indole as Terminator in a Biomimetic Polyene Cyclization: Synthesis of a Pentacyclic Indolosesquiterpene.
Authors: MIRAND C. , DOEE DE MAINDREVILLE M. + , CARTIER D. , LEVY J.
Published: May 2016

The epoxides (III) and (IV) are prepared from the N‐phenylsulfonyl‐2farnesylindole (I) via the bromohydrin (II).
ChemInform Abstract: Synthesis and Properties of 6‐Substituted 4‐Alkoxy‐5,6‐dihydro‐4H‐thienol(3,2‐b)pyrrol‐5‐ones.
Authors: GEFFKEN D.
Published: May 2016

Ring closure of the N‐alkoxythienylglycolamides (I) in the presence of DCC yields the title compounds (II).
ChemInform Abstract: Chemistry of 2‐Methoxy‐2,5‐cyclohexadienone. Part 5. Photochemical Rearrangement and Oxidation of 2‐Methoxy‐4‐methyl‐4‐phenyl‐2‐cyclohexenone and 2‐Methoxy‐4‐methyl‐4‐phenyl‐2,5‐cyclohexadienone.
Authors: MATOBA K. , NODA H. , YAMAZAKI T.
Published: May 2016

Photoreaction of the methoxycyclohexenone (III) in methanol gives the cyclohexenone (II) and the bicyclohexanone (I).
ChemInform Abstract: Improved Synthesis of Dicyanocobaloximes and the Molecular and Crystal Structure of Potassium Dicyanobis(dimethylglyoximato)cobaltate(III).
Authors: LOPEZ C. , ALVAREZ S. , SOLANS X. , AGUILO M.
Published: May 2016

An improved method for the preparation of (VI) is presented, producing pure products in high yields.
ChemInform Abstract: Binuclear Copper(II) Complexes of Some Tetradentate (N4) Diazine Ligands with Benzimidazole Donor Groups. Crystal Structure of (μ‐3,6‐Bis(N‐ethyl‐2‐benzimidazolylthio)pyridazine‐N,μ‐N5,μ‐N6,N)‐(.mu# .‐hydroxo)(μ‐chloro)dichlorodicopper(II) DMF.
Authors: THOMPSON L. K. , MANDAL S. K. , ROSENBERG L. , LEE F. L. , GABE E. J.
Published: May 2016

The complexes (IIIb) and (IIIc), as well as (IV) and (V) are prepared by reaction of the metal salt in H2O with the ligands (synthesis described) in MeOH.
ChemInform Abstract: The Reactions of Dichloro‐bis(μ‐chloro)‐bis(η6‐p‐cymene)diosmium(II) and ‐diruthenium(II) with Hexamethyldialuminum.
Authors: CABEZA J. A. , TAYLOR B. F. , MAITLIS P. M.
Published: May 2016

On the basis of low‐temp.
ChemInform Abstract: Use of L‐Aspartic Acid β‐Semialdehyde in the Synthesis of More Complex Non‐Protein Amino Acids.
Authors: BALDWIN J. E. , FLINN A.
Published: May 2016

The aldehyde (IX) mentioned in the title is prepared from L‐methionine (I) as shown in the reaction scheme.
ChemInform Abstract: Enantioselective Total Synthesis of Streptazolin. The Tandem Use of Iminium Ion‐Vinylsilane Cyclizations and Intramolecular Acylations.
Authors: FLANN C. J. , OVERMAN L. E.
Published: May 2016

The synthesis of the title compound (+)‐(XVI), a constituent of Streptomyces viridochromogenes, starts with the alcohol (II) and includes the two title key steps (VI) → (VII) and (XIII) → (XIV).
ChemInform Abstract: Et4NCu2Cl4: An Ordered, Mixed‐Valence (Cu2Cl4)n‐ n Chain.
Authors: WILLETT R. D.
Published: May 2016

The mixed‐valence Cu(I)‐Cu(II) linear‐chain salt obtained as a byproduct of crystal growth of single crystals of Et4NCu4Cl12 (a repeatable synthetic scheme is not yet worked out), crystallizes in the tetragonal system, space group P4/ncc with Z=4.
ChemInform Abstract: Ring‐Opening of 2H‐Pyrans Promoted by Organometallic Reagents. Synthesis of Dienic Alcohols.
Authors: ALBEROLA A. , ANDRES C. , GONZALEZ ORTEGA A. , PEDROSA R. , VICENTE M.
Published: May 2016

The 2H‐pyrans (I), (VIII), which are in equilibrium with their corresponding open forms (e.g.
ChemInform Abstract: Rapid and Large‐Scale Synthesis of Sulfonyl Substituted Propanones.
Authors: DAVIS R.
Published: May 2016

Coupling of the thiols (I) with chloroacetone (II) in the presence of sodium hydroxide and KHSO5 (oxone) yields the sulfonylpropanones (III).
ChemInform Abstract: Formation of Spiro Compounds by Rearrangement of N,N‐Dimethylhexahydrothienoazocinium or Azoninium Ylides.
Authors: COTELLE P. , HASIAK B. , BARBRY D. , COUTURIER D.
Published: May 2016

Rearrangement of the N,N‐dimethylhexahydrothienoazocinium or azoninium salts (I) gives mixtures of the spiro compounds (II) and the aminomethylthiophenes (III).
ChemInform Abstract: 1‐Methyl‐1‐ethynylsilacyclopentane.
Authors: GLADYSHEV E. N. , ABAKUMOV G. A. , TATARNIKOV A. N.
Published: May 2016

1‐Methyl‐1‐ethynylsilacyclopentane (VIII) is prepared from the 1,4‐dihalobutanes (I) and methyldichlorosilane (II) via the intermediates (III), (V), and (VI).
ChemInform Abstract: Synthesis and Reaction of Dibenzoyl Ditelluride.
Authors: HIRABAYASHI Y. , ISHIHARA H. , OGI Y. , MIYAKE T. , OIDA H. , KONDO N. , GOJI H.
Published: May 2016

Sodium hydrogen telluride (II), prepared from tellurium (I) and sodium boranate, reacts with benzoyl chloride (IV) to give dibenzoyl ditelluride (VI) via the telluride (V).
ChemInform Abstract: An ESR Study of the Dioxygen Adduct of Bis(2‐(2′‐pyridylmethylenehydrazonomethyl)phenolato)cobalt(II) and Related Materials.
Authors: TIRANT M. , SMITH T. D. , PILBROW J. R.
Published: May 2016

The cobalt(II) chelates of 2‐(2'‐pyridylmethylene‐ and 2‐(pyrrol‐2'‐ylmethylenehydrazonomethyl)phenol have low‐spin forms in DMF and DMF‐pyridine.
ChemInform Abstract: Pentamethylcyclopentadienylrhodaborane Chemistry. Part 3. The Reaction of ((Rh(η5‐C5Me5)Cl2)2) with closo‐(B10H10)2‐ and arachno‐B10H12‐6,9‐(PMe2Ph)2, and the Characterization of Some Novel Rhodaboranes by X‐Ray Diffraction Analysis and NMR Spectroscopy.
Authors: FONTAINE X. L. R. , FOWKES H. , GREENWOOD N. N. , KENNEDY J. D. , THORNTON‐PETT M.
Published: May 2016

Reaction of the rhodaborane synthon (I) with closo‐B10H12‐0 in CH2Cl2 solution results in insertion of a Rh vertex to give the air‐stable closo‐derivative (IIIa).
ChemInform Abstract: Diphosphine‐Bridged Binuclear Polyhydride Complexes of Iridium and the Structure of (Ir2(H)(CO)2(μ‐H)2(Ph2PCH2PPh2)2) (Cl)·1.2 CH2Cl2.
Authors: MCDONALD R. , SUTHERLAND B. R. , COWIE M.
Published: May 2016

The reaction of (I) with NaBH4 proceeds unlike that of the analogous Rh complex and yields ultimately a variety of Ir hydride complexes (see scheme).
ChemInform Abstract: Orthorhombic PbO Formation During the Discharge of Lead Acid Batteries PbO2 Active Mass.
Authors: PAVLOV D. , BALKANOV I. , RACHEV P.
Published: May 2016

The active mass structure of the lead acid battery positive plate has been investigated by TEM and electron diffraction.
ChemInform Abstract: Cathodic Reduction of Anodic Oxide Films Formed on Titanium
Authors: OHTSUKA T. , MASUDA M. , SATO N.
Published: May 2016

has been investigated by ellipsometry and coulometry.
ChemInform Abstract: (PPh4)2(MoN(N3)3Cl)2; Synthesis, IR Spectrum, and Crystal Structure.
Authors: JANSEN K. , SCHMITTE J. , DEHNICKE K. , FENSKE D.
Published: May 2016

Two salts of the title anion, (IV) and (XI), are obtained according to the scheme.
ChemInform Abstract: Reactions of Alkanes with Deuterium on Lanthana in the Temperature Range 570 to 720 K.
Authors: BIRD R. , KEMBALL C. , LEACH H. F.
Published: May 2016

The reactions of methane, propane, butane, 2‐methyl‐, and 2,2‐dimethylpropane are studied.
ChemInform Abstract: Synthesis of New Bicyclic Quinones: 2H‐1‐Benzopyran‐5,8‐quinones and Related Compounds.
Authors: REINAUD O. , CAPDEVIELLE P. , MAUMY M.
Published: May 2016

The title compounds (V) are obtained by copper‐catalyzed oxidation of p‐methoxyphenol (I), followed by substitution reaction with the propargyl alcohols (III) and thermal isomerization.
ChemInform Abstract: Lewis Acid‐Promoted Favorskii‐Type Ring Contraction of Some Cyclic α‐Bromo Ketones and Their Acetals.
Authors: MAITI S. B. , CHAUDHURI S. R. R. , CHATTERJEE A.
Published: May 2016

The α‐bromo cycloalkyl ketones (III) and the α‐bromo acetals (X) are converted to the esters (V) and (VII) under ring contraction upon heating.
ChemInform Abstract: Synthesis of an Unsymmetrical Carbodiphosphorane Through Skeletal Rearrangement of a Cyclopropylidene Precursor.
Authors: SCHMIDBAUR H. , POLLOK T.
Published: May 2016

While the methylation of (I) in toluene affords the phosphonium salt (IIIa), the reaction with neat MeI (II) leads to the bisphosphonium salt (IIIb).
ChemInform Abstract: Synthesis of Naturally Occurring (.+‐.)‐7,3′‐Dihydroxy‐4′‐methoxyisoflavanone and Some Isoflavanones Related to Natural 6,7‐Dimethoxy‐3′,4′‐methylenedioxyisoflavanone.
Authors: JAIN A. C. , BAMBAH P. K.
Published: May 2016

The naturally occurring isoflavone (IV), a constituent of Myroxylon balsamum, can be synthesized starting from the compound (I) as shown.
ChemInform Abstract: Synthesis of New 6‐Hydroxyflavones Occurring in Thymbra spicata.
Authors: MALHOTRA S. , SHARMA V. K. , GUPTA S. R. , PARMAR V. S.
Published: May 2016

The 6‐hydroxyflavones (IV), identified as constituents of the title species, are synthesized as shown.
ChemInform Abstract: Oxygen Content and Site Distribution in High‐Tc Superconducting YBa2Cu3Oy Ceramics.
Authors: KISTENMACHER T. J.
Published: May 2016

Semiquantitative estimates are made for the oxygen atom site preference (P(0, 1/2, O)) and the total oxygen content y of YBa2Cu3Oy ceramics using published cell constants determined by X‐ray, neutron, or electron diffraction.
ChemInform Abstract: Peroxohydrates of Potassium Fluoride: KF · H2O2, KF · 2 H2O2 and KF · 3 H2O2.
Authors: TITOVA K. V. , GELYUK I. P. , ROSOLOVSKII V. YA.
Published: May 2016

Depending on the molar ratios chosen, reaction between dry, crystalline KF and 30% H2O2 affords the title compounds.
ChemInform Abstract: Greatly Enhanced Second‐Order Nonlinear Optical Susceptibilities in Donor‐Acceptor Organic Molecules.
Authors: KATZ H. E. , SINGER K. D. , SOHN J. E. , DIRK C. W. , KING L. A. , GORDON H. M.
Published: May 2016

Optical susceptibilities can be increased substantially through the use of di‐ or tricyanovinyl as acceptor and/or dithiolylidenemethyl as donor groups as exemplified by compounds (I)‐(IV).
ChemInform Abstract: The Crystal Structures of 2,2,6,6‐Tetramethyl‐4‐oxaheptane‐1,7‐diol and 2,2,6,6,10,10‐Hexamethyl‐4,8‐dioxaundecane‐1,11‐diol at ‐150 °C.
Authors: GROTH P.
Published: May 2016

The structure of the title compounds (Ia) and (Ib) is confirmed by X‐ray analysis (space groups P1 and Pbca with Z=4 and Z = 8, respectively).
ChemInform Abstract: The Solvolysis of Bromonorbornenotropenium Hexafluoroantimonates. Anchimeric Participation by the Tropenium Group.
Authors: WILT J. W. , GEORGE C. , PEERAN M.
Published: May 2016

(WI LT , J. W.; GEORGE, C.; PEERAN, M.; J. Org.
ChemInform Abstract: Alkoxy Radicals in Organic Synthesis. A Novel Approach to Spiroketals.
Authors: KRAUS G. A. , THURSTON J.
Published: May 2016

The 4‐pentenols (I) undergo photochemical cyclization in the presence of iodine and mercuric oxide to form the 2‐iodomethyltetrahydrofurans (II).
ChemInform Abstract: Ba(OH)2 as Catalyst in Organic Reactions. Part 17. Interfacial SolidLiquid Wittig‐Horner Reaction Under Sonochemical Conditions.
Authors: SINISTERRA J. V. , FUENTES A. , MARINAS J. M.
Published: May 2016

The Wittig‐Horner reaction between aldehydes such as (II) and phosphonates such as (I) is investigated under various conditions.
ChemInform Abstract: Practical Synthesis of Diastereomerically and Enantiomerically Pure 2‐Methyl 1,3‐Diols from (R)‐2,3‐O‐Isopropylideneglyceraldehyde. Application to the C(1)‐C(7) and C(9)‐C(12) Fragments of Erythronolide B.
Authors: MULZER J. , AUTENRIETH‐ANSORGE L. , KIRSTEIN H. , MATSUOKA T. , MUENCH W. +
Published: May 2016

The diastereomeric dimethylhexenediol derivatives (VI) ‐ (VIII) are important precursors of erythronolides.
ChemInform Abstract: Studies on Pyridyl‐Pyrazolone System. Part 2. Some Reactions with 4‐Arylidene‐3‐(3′‐pyridyl)‐1‐phenyl‐2‐pyrazolin‐5‐one.
Authors: ABDEL‐MEGEED M. F. , BORAI M. E. , FAHMY M. , ALY E. A.
Published: May 2016

The title compounds (I) react with hydrazine to form the benzalazines (II).
ChemInform Abstract: The Four 6‐Halo‐7‐nitroquinoxalines.
Authors: NASIELSKI‐HINKENS R. , LEVEQUE P. , CASTELET D. , NASIELSKI J.
Published: May 2016

The diaminohalobenzenes (I) are converted into the diaminohalonitrobenzenes (V) which are coupled with glyoxal (VI) to give the 6‐halo‐7‐ nitroquinoxalines (VII).
ChemInform Abstract: Studies on the Synthesis of Benzolactam Rings. Part 2. Synthesis of 1,4‐Dihydro‐3(2H)‐isoquinolinone Derivatives.
Authors: KAMOCHI Y. , WATANABE Y.
Published: May 2016

Cyclocondensation of the arylacetamides (I) with paraformaldehyde (II) in the presence of an acidic catalyst at an elevated temperature gives the dihydroisoquinolinones (III) which are also prepared by ring closure of the bisamides (IV) or the arylacetonitriles (V).
ChemInform Abstract: 3‐Phenyl‐5‐carbomethoxymethylene‐5H‐isoxazolo(4,5‐e)(1,4)diazepine‐ 6,8(4H,7H)‐dione: A New Seven Membered Binuclear System.
Authors: NESI R. , GIOMI D. , QUARTARA L. , PAPALEO S. , TEDESCHI P.
Published: May 2016

Reduction of the nitro ester (Ia) and subsequent ammonolysis yield the phenyl(amino)carbamoylisoxazole (II) which is coupled with dimethyl acetylenedicarboxylate (III) to give the enamino diester (IV).
ChemInform Abstract: Cleavage of a C‐N Bond in N,N,N′,N′‐Tetraalkylmethylenediamines with Triethylsilane on Reduced Nickel.
Authors: GAL'TSEVA T. D. , MEL'NITSKII I. A. , KILADZE T. K. , KANTOR E. A. , RAKHMANKULOV D. L.
Published: May 2016

The methylenediamines (I) react with triethylsilane (II) at elevated temperature in the presence of reduced nickel to give the alkylaminosilanes (III) and the tertiary amines (IV).
ChemInform Abstract: Phosphorylation of Ethyl Vinyl Ether with Phenoxytetrachlorophosphorane.
Authors: FRIDLAND S. V. , LAPTEVA L. I.
Published: May 2016

Reaction of ethyl vinyl ether (I) with the phosphorane (II) and subsequent treatment with sulfur dioxide lead to the formation of the phosphonic acid chloride (III) and the phosphoric acid dichloride (IV).
ChemInform Abstract: N‐Trialkylgermyl Derivatives of Some Organic Acid Imides.
Authors: SHCHERBAKOV V. I. , STOLYAROVA N. E. , KONKINA T. N.
Published: May 2016

The N‐trialkylgermyl imides (III) are prepared by reaction of the trialkylgermyl bromides (I) with the imide salts (II).
ChemInform Abstract: The Copper‐Molybdenum Antagonism in Ruminants. Part 4. Reaction of Thiomolybdate Ions with Proteins and Metalloproteins.
Authors: CLARKE N. J. , LAURIE S. H. , PRATT D. E.
Published: May 2016

The treatment of both ruminants and non‐ruminant animals with (NH4)2MoO2S2, K2MoOS3, and (NH4)2MoS4 causes changes in the distribution of Cu within blood plasma.
ChemInform Abstract: Crystal Structure of K5Nb6Zr2P5O34.
Authors: DENIARD‐COURANT S. , PIFFARD Y. , TOURNOUX M.
Published: May 2016

Single crystals of the title compound are obtained by annealing a stoichiometric mixture of KNO3, Nb2O5, ZrO2, and NH4H2PO4 at 1000 °C. The title compound crystallizes in the monoclinic space group P2/c with Z=2.
ChemInform Abstract: Crystal Growth, Characterization, and Resistivity Measurements of TiSi2 Single Crystals.
Authors: THOMAS O. , MADAR R. , SENATEUR J. P. , LABORDE O.
Published: May 2016

Single crystals of TiSi2, a refractory metal disilicide of current interest to the microelectronics industry, are grown by the Czochralski technique from a r.f.
ChemInform Abstract: Voltammetric Behavior of Ternary Mixtures of Ni, Mn and Fe Hydroxides in Relation to the Oxygen Evolution Reaction.
Authors: CORDOBA S. I. , LOPEZ TEIJELO M. , MACAGNO V. A.
Published: May 2016

It is demonstrated that the known good catalytic activity of electrodes made of binary mixtures of Fe(OH)2 and Ni(OH)2 can be further improved by the addition of Mn(OH)2.
ChemInform Abstract: Phase Transition in Trichloroacrylic Acid, Cl2C=CClCOOH: An X‐Ray Diffraction, 35Cl‐Nuclear Quadrupole Resonance and Pyroelectricity Study
Authors: FLECK S. , GOECKEL R. + , WEISS A.
Published: May 2016

(phase transition at 292.5 K; space group of the high‐temp.
ChemInform Abstract: Electrochemical Oxidation of Hydroxide Ion in Acetonitrile and Its Facilitation by Transition‐Metal Complexes.
Authors: TSANG P. K. S. , COFRE P. , SAWYER D. T.
Published: May 2016

The oxidation of hydroxide ion and phenoxide ion in MeCN is studied by cyclic voltammetry at glassy carbon electrodes.
ChemInform Abstract: Stereocontrolled Synthesis of Highly Oxygenated Acyclic Systems via the Enolate Claisen Rearrangement of O‐Protected Allylic Glycolates.
Authors: GOULD T. J. , BALESTRA M. , WITTMAN M. D. , GARY J. A. , ROSSANO L. T. , KALLMERTEN J.
Published: May 2016

The allylic glycolates (I) undergo base‐induced rearrangement via the corresponding silyl enol ethers and subsequent esterification to yield the α‐alkoxy homoallylic carboxylates (II).
ChemInform Abstract: (2 + 2) Cycloaddition Reactions of Unsymmetrically Substituted Carbodiimides.
Authors: ULRICH H. , RICHTER R. , TUCKER B.
Published: May 2016

The unsymmetrically substituted carbodiimides (Ia) ‐ (Ic) react with the isocyanates (II) to form the iminodiazetidinones (III).
ChemInform Abstract: Improved Syntheses of 6‐Hydroxy‐5‐methoxy‐ and 5‐Hydroxy‐6‐methoxyindoles and Their O‐Acetates, Analogs of Natural Eumelanin Precursors.
Authors: BRADFORD ROGERS C. , BLUM C. A. , MURPHY B. P.
Published: May 2016

4‐Benzyloxy‐3‐methoxybenzaldehyde (I) is nitrated and debenzylated to form the derivative (IIa).
ChemInform Abstract: Activated Nitrile in Heterocyclic Synthesis. A Novel Synthesis of Pyrazolo(3,4‐b)pyridine, Pyrrolo(2,3‐c)pyrazole, Pyrano(2,3‐c)pyrazole, and Pyrrolo(3,4‐c)pyrazole.
Authors: IBRAHIM M. K. A. , EL‐REEDY A. M. , EL‐GHARIB M. S. , FARAG A. M.
Published: May 2016

When the hydrazidoyl chlorides (I) are treated with bases, they undergo dehydrochlorination, yielding intermediate 1,3‐dipoles which are subjected to cycloaddition reactions with the electron‐deficient olefins (II) or (IV) to give the fused pyrazoles (III) or (V).
ChemInform Abstract: 1,3‐Dioxolo(4,5‐g)quinazolines.
Authors: GAKHAR H. K. , GUPTA S. B.
Published: May 2016

The o‐aminobenzoate (I) reacts with the nitriles (II), phenyl isothiocyanate (IV), or urea (VII) to produce the quinazolines (IIIa), (V), and (VIII).
ChemInform Abstract: Cyclization Under Mild Conditions of Anthraniloyl‐ and N‐Methylanthraniloyl Dipeptides.
Authors: PINNEN F. , DI MURO A. , ZANOTTI G. , LUCENTE G.
Published: May 2016

Coupling of the isatoic anhydrides (I) with the dipeptide esters (II) yields the anthraniloyl dipeptide derivatives (III).
ChemInform Abstract: Proton‐Ionizable Crown Compounds. Part 13. Synthesis and Structural Studies of Crown Compounds Containing the Triazole Subcyclic Unit and Lipophilic Substituents.
Authors: BRADSHAW J. S. , MCDANIEL C. W. , SKIDMORE B. D. , NIELSEN R. B. , WILSON B. E. , DALLEY N. K. , IZATT R. M.
Published: May 2016

Some macrocyclic ethers such as (III) which contain the 1,2,4‐triazole moiety are prepared.
ChemInform Abstract: Synthesis and Characterization of Di‐ and Triorganotin(IV) Diethyldithiophosphinates. The Crystal and Molecular Structure of Bis(diethyldithiophosphinato)dimethyltin(IV), Me2Sn(S2PEt2)2.
Authors: SILVESTRU C. , HAIDUC I. , KLIMA S. , THEWALT U. , GIELEN M. , ZUCKERMAN J. J.
Published: May 2016

The di‐ and triorganotin(IV) diethyldithiophosphinates (III) are prepared by the reaction of the organotin chlorides (I) with sodium diethyldithiophosphinate (II).
ChemInform Abstract: Complexes of Binucleating Ligands. Part 20. Complexes of a New, Easily Accessible Binucleating Ligand Containing an Aliphatic Thiolate Bridging Center.
Authors: MCKENZIE C. J. , ROBSON R.
Published: May 2016

The ligand (V) acts as a convenient precursor to a new type of thiolate‐based binucleating ligand represented in the complexes (VII)‐(XIII).
ChemInform Abstract: A General Enantioselective O‐2‐Isocephem Synthesis.
Authors: MASTALERZ H. , VINET V.
Published: May 2016

Alkylation of the chiral azetidinone (Ia) with the bromide (II) and subsequent acylation produce the β‐keto esters (IV) which are cyclized after desilylation, yielding the O‐2‐isocephems (VI).
ChemInform Abstract: Technetium Electrochemistry. Part 5. Spectroelectrochemical Studies on the Hexachlorotechnetate(IV) and Hexabromotechnetate(IV) Complexes in Aqueous Media.
Authors: HUBER E. W. , HEINEMAN W. R. , DEUTSCH E.
Published: May 2016

The results of thin‐layer spectroelectrochemical measurements (UV‐VIS spectroscopy during cyclic voltammetry) show that the TcX62‐ (X: Cl, Br) complexes in concentrated HX/NaX media undergo a reversible one‐electron reduction.
ChemInform Abstract: Physico‐Chemical Investigation of Ternary Oxides in the Systems MO‐Ln2O3‐SnO2 (M: Mg, Ca, Zn).
Authors: GODZHIEVA O. V. , POROTNIKOV N. V. , KOROBKINA N. A.
Published: May 2016

The novel ternary oxides M2Ln2SnO7 (M: Mg; Ln: La, Pr, Nd ‐ M: Ca; Ln: La, Nd ‐ M: Zn; Ln: La) are prepared by heating mixtures of MO, Ln2O3 and SnO2 at 1300 °C for 60‐100 h. The compound Mg2La2SnO7 is cubic with Z=3, whereas the other title compounds all are rhombic with Z=2.
ChemInform Abstract: Molecular Recognition: Watson‐Crick, Hoogsteen, and Bifurcated Hydrogen Bonding in a Model for Adenine Recognition.
Authors: REBEK J. JUN. , ASKEW B. , BALLESTER P. , BUHR C. , COSTERO A. , JONES S. , WILLIAMS K.
Published: May 2016

To explore the principal intermolecular forces that stabilize double‐stranded nucleic acids by H‐bond base pairing and aryl stacking interactions the geometric details of complexes formed from the anthraquinone (I) and 9‐ethyladenine (II) are studied by NOE techniques.
ChemInform Abstract: Double Diastereoselection in the Iodolactonization of 1,6‐Heptadien‐4‐carboxylic Acids.
Authors: KURTH M. J. , BROWN E. G.
Published: May 2016

The heptadienoates d,l‐(IIa) (= anti,syn form), meso‐(IIb) (= anti,anti form), and meso‐(IIc) (= syn,syn form) are prepared by a known "kinetic enolate" Claisen rearrangement of the ester (I).
ChemInform Abstract: Asymmetric Allylation with a New Chiral Allylating Agent Prepared from Tin(II) Triflate, Chiral Diamine, and Allylaluminum.
Authors: MINOWA N. , MUKAIYAMA T.
Published: May 2016

Chiral alkylating reagents, readily generated from the allylaluminum reagents (II), (V) or (VII), the chiral (S)‐amine (IV) and tin(II) triflate, are efficiently employed in the asym.