bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Catalyst, Temperature, and Hydrogen Pressure on Slurry Hydrocracking Reactions of Naphthalene
Authors: Akmaz Solmaz , Caglayan Pegah Amiri 
Published: April 2015

AbstractHydrocracking reactions of naphthalene were investigated in a slurry‐type reactor with different catalyst compositions consisting of iron‐based compounds, metal oxides, and elementary sulfur in order to evaluate the most efficient catalyst composition. The reactions were repeated with the optimal catalyst composition at different H2 initial pressures, temperatures, and holding times to determine the influence of these parameters. At the end of each reaction, liquid samples were analyzed by gas chromatography and mass spectrometry. The most effective catalyst composition for hyrocracking reaction of naphthalene was found to be a mixture of FeSO4·H2O, Fe2O3, Al2O3, and sulfur. It can be concluded that hydrogenation, isomerization, cracking, and dealkylation take place during the hydrocracking reaction of naphthalene.
ChemInform Abstract: Exploring the Optoelectronic Structure and Thermoelectricity of Recent Photoconductive Chalcogenides Compounds, CsCdInQ3 (Q: Se, Te).
Authors: Khan Wilayat , Goumri‐Said Souraya 
Published: April 2015

AbstractCsCdInQ3 (Q: Se, Te), potential materials for hard Xray and γ‐ray detection, are investigated by a DFT‐based full potential linearized augmented plane wave method.
ChemInform Abstract: Ba3P5N10Br:Eu2+: A Natural‐White‐Light Single Emitter with a Zeolite Structure Type.
Authors: Marchuk Alexey , Schnick Wolfgang 
Published: April 2015

AbstractBa3P5N10Br:Eu2+ (2 mol%) is prepared by high pressure solid state reaction using stoichiometric amounts of B(N3)2, BaBr2, P3N5, and EuCl2 (multi‐anvil press, 1‐5 GPa, 1000 °C, 30 min).
ChemInform Abstract: Sunlight Activated Long‐Lasting Luminescence from Ba5Si8O21: Eu2+, Dy3+ Phosphor.
Authors: Wang Pengjiu , Xu Xuhui , Zhou Dacheng , Yu Xue , Qiu Jianbei 
Published: April 2015

AbstractThe new title phosphor is prepared by solid state reaction of a stoichiometric mixture of BaCO3, SiO2, Eu2O3, and Dy2O3 (95% N2/5% H2, 1250 °C, 10 h).
ChemInform Abstract: Synthesis, Structural Characterization, and Physical Properties of the New Transition Metal Oxyselenide Ce2O2ZnSe2.
Authors: Ainsworth Chris M. , Wang Chun‐Hai , Tucker Matthew G. , Evans John S. O. 
Published: April 2015

AbstractThe title compound is prepared from powder mixtures of CeO2, Zn, and Se in a 1:2:1 ratio in an alumina crucible using Al placed in a different crucible as oxygen getter (1100—1225 °C, 1—24 h).
ChemInform Abstract: New Phase of MnSb2O6 Prepared by Ion Exchange: Structural, Magnetic, and Thermodynamic Properties.
Authors: Nalbandyan Vladimir B. 
Published: April 2015

AbstractThe new title phase is prepared from a mixture of NaSbO3, MnSO4, KCl, and KBr (CO2, 470 °C, 1 h) and characterized by powder XRD, magnetic, and thermophysical measurements, and DFT calculations.
ChemInform Abstract: The First 3‐Connected SrSi2‐Type 3D Chiral Framework Constructed from {Ni6PW9} Building Units.
Authors: Li Xin‐Xiong , Fang Wei‐Hui , Zhao Jun‐Wei , Yang Guo‐Yu 
Published: April 2015

AbstractPrismatic crystals of [Ni(dap)2]3[WO4]3 [Ni6(dap)3 (OH)3PW9O34] 2·9H2O (dap: 1,2‐diaminopropane) are prepared by hydrothermal reaction of an aqueous solution of Ni(O‐Ac)2 and Na9[A‐α‐PW9O34] in the molar ratio of 1:0.13 to which dap is added dropwise under stirring (2 h) (autoclave, 170 °C, 3 d).
ChemInform Abstract: Base‐Switched Annuloselectivity in the Reactions of Ethyl Malonyl Chloride and Imines.
Authors: Yang Zhanhui , Li Siqi , Zhang Zhong , Xu Jiaxi 
Published: April 2015

AbstractThe reaction of imines (I) with ethyl malonyl chloride (II) in the presence of 2‐chloropyridine affords exclusively trans‐β‐lactams (III) via a [2+2] cycloaddition pathway, whilst the reaction in the presence of the strong nucleophilic base N‐methylimidazole affords dihydrooxazinones [cf.
ChemInform Abstract: Palladium(II) Complexes Bearing the 1,2,3‐Triazole Based Organosulfur/Selenium Ligand: Synthesis, Structure and Applications in Heck and Suzuki—Miyaura Coupling as a Catalyst via Palladium Nanoparticles.
Authors: Saleem Fariha , Rao G. K. , Kumar Arun , Kumar Satyendra , Singh Mahabir P. , Singh Ajai K. 
Published: April 2015

AbstractThe air and moisture insensitive palladium complexes PSL and PSEL efficiently catalyze the Heck and Suzuki—Miyaura coupling reaction of various aryl bromides including deactivated bromides with phenylboronic acid and butyl acrylate, respectively.
ChemInform Abstract: Facile Palladium‐Catalyzed Hydrocarboxylation of Olefins Without External CO Gas.
Authors: Wang Yang , Ren Wenlong , Li Jingfu , Wang Haining , Shi Yian 
Published: April 2015

AbstractThe facile protocol allows the hydrocarbonylation of olefins with phenyl formate and formic acid to afford carboxylic acids with high regioselectivity.
ChemInform Abstract: One‐Pot Synthesis of 1,2,4,5‐Tetrahydro‐2,4‐dioxobenzo[b][1,4]diazepine and Malonamide Derivatives Using Multi‐Component Reactions.
Authors: Rahmati Abbas , Ahmadi Samaneh , Ahmadi‐Varzaneh Mahdi 
Published: April 2015

AbstractMulticomponent reaction of o‐phenylenediamine with arylidene malonitriles, isocyanides, and Meldrum′s acid provides diazepines (V) whereas 1,2‐diamines with electron‐withdrawing substituent as well as p‐phenylenediamine give malonamide derivatives.
ChemInform Abstract: Step‐Economy Etherification of Acylated Alcohols.
Authors: Xu Hua‐Dong , Xu Ke , Zheng Qing , He Wei‐Jie , Shen Mei‐Hua , Hu Wen‐Hao 
Published: April 2015

AbstractThe protocol succeeds for the etherification of acyclic and cyclic acylated alcohols, namely esters and lactones, using alkyl, alkenyl, and benzyl halogenides, but fails using tosylated alcohols.
ChemInform Abstract: Expedient Synthesis of Chiral α‐Amino Acids Through Nickel‐Catalyzed Reductive Cross‐Coupling.
Authors: Lu Xi , Yi Jun , Zhang Zhen‐Qi , Dai Jian‐Jun , Liu Jing‐Hui , Xiao Bin , Fu Yao , Liu Lei 
Published: April 2015

AbstractThe novel Ni‐catalyzed reductive coupling process allows the synthesis of a variety of non‐natural enantiopure α‐amino acids from serine or homoserine iodides with a range of different organic halides.
ChemInform Abstract: Direct Catalytic Addition of Alkylnitriles to Aldehydes by Transition‐Metal/NHC Complexes.
Authors: Sureshkumar Devarajulu , Ganesh Venkataraman , Kumagai Naoya , Shibasaki Masakatsu 
Published: April 2015

AbstractDirect catalytic addition of alkylnitriles to aldehydes allows for an atom‐economical access to β‐hydroxynitriles under proton transfer conditions.
ChemInform Abstract: Synthesis of Aryl Azides from Aryl Halides Promoted by Cu2O/Tetraethylammonium Prolinate.
Authors: Hajipour Abdol R. , Mohammadsaleh Fatemeh 
Published: April 2015

AbstractCompared to previously developed procedures the presented method offers the advantages of a fast reaction rate and the selective reaction of iodo over bromo substituted substrates.
ChemInform Abstract: Palladium‐Catalyzed Hydroxymethylation of Aryl‐ and Heteroarylboronic Acids Using Aqueous Formaldehyde.
Authors: Yamamoto Tetsuya , Zhumagazin Azamat , Furusawa Takuma , Tanaka Ryoji , Yamakawa Tetsu , Oe Yohei , Ohta Tetsuo 
Published: April 2015

AbstractThe applied catalyst is prepared in one step via C—H bond cleavage orthopalladation.
ChemInform Abstract: Synthesis of Novel Fluorescent Stilbenenitrones via a Mild, Ligand‐Free Heck‐Type Reaction of (E)‐[4‐(1,3‐Dioxolan‐2‐yl)styryl]trimethylsilane with Benzene Diazonium Tetrafluoroborate Derivatives.
Authors: Karbach Andre , Stemler Tobias , Kopp Christian , Trommer Wolfgang E. 
Published: April 2015

AbstractThe title reaction gives 4‐formylstilbenes (III) which are further reacted with N‐tert‐butylhydroxylamine hydrochloride to give target compounds (V).
ChemInform Abstract: Kinetic Resolution of Racemic Mandelic Acid Esters by N,N′‐Dioxide‐Scandium‐Complex‐Catalyzed Enantiomer‐Selective Acylation.
Authors: Zhang Yuheng , Liu Xiaohua , Zhou Lin , Wu Wangbin , Huang Tianyu , Liao Yuting , Lin Lili , Feng Xiaoming 
Published: April 2015

AbstractA simple and efficient acylative kinetic resolution of racemic mandelic acid esters is accomplished with a chiral N,N‐dioxide‐scandium(III) complex under mild and base‐free reaction conditions.
ChemInform Abstract: Efficient and Simple Approaches Towards Direct Oxidative Esterification of Alcohols.
Authors: Ray Ritwika , Jana Rahul Dev , Bhadra Mayukh , Maiti Debabrata , Lahiri Goutam Kumar 
Published: April 2015

AbstractA transition‐metal‐free oxidative cross‐coupling of two different alcohols is achieved using Oxone as oxidant and a mixture of TEMPO and Bu4NBr as catalysts.
ChemInform Abstract: Suzuki—Miyaura Reactions Promoted by a PdCl2/Sulfonate‐Tagged Phenanthroline Precatalyst in Water.
Authors: Li Qi , Zhang Li‐Ming , Bao Jia‐Jing , Li Hong‐Xi , Xie Jing‐Bo , Lang Jian‐Ping 
Published: April 2015

AbstractA water soluble sulfonate‐functionalized phenanthroline‐type ligand is synthesized and successfully applied in the Pd‐catalyzed Sukuzi—Miyaura coupling of aryl bromides and iodides with arylboronic acids.
ChemInform Abstract: Copper‐Free Sonogashira Coupling Reaction Catalyzed by PVC‐Supported Triazine Palladium(II) Complex under Aerobic Conditions.
Authors: Bakherad Mohammad , Keivanloo Ali , Hadi Amene , Siavoshi Maesoume 
Published: April 2015

AbstractA polyvinyl chloride supported triazine Pd(II)‐complex is developed and efficiently applied as heterogeneous recyclable catalyst for the Sonogashira coupling of aryl iodides and bromides.
ChemInform Abstract: Bifunctional Squaramide Catalysts with the Same Absolute Chirality for the Diastereodivergent Access to Densely Functionalized Cyclohexanes Through Enantioselective Domino Reactions. Synthesis and Mechanistic Studies.
Authors: Martinez Jose I. , Villar Laura , Uria Uxue , Carrillo Luisa , Reyes Efraim , Vicario Jose L. 
Published: April 2015

AbstractA one‐pot approach for the title reactions is also presented [reaction of (VII)].
ChemInform Abstract: Palladium‐Catalyzed Annulation of Alkynes with ortho‐Halide‐Containing Benzyl Alcohols in Aqueous Medium.
Authors: Feng Jie , Lu Guoping , Lv Meifang , Cai Chun 
Published: April 2015

AbstractOrtho‐brom benzyl alcohols are also applicable in these reactions with slightly lower yields.
ChemInform Abstract: Synthesis of Cycloalkanone‐Fused Cyclopropanes by Au(I)‐Catalyzed Oxidative Ene‐Yne Cyclizations.
Authors: Uetake Yuta , Niwa Takashi , Nakada Masahisa 
Published: April 2015

AbstractThe method is effectively applied to different substrate offering an alternative to previously developed procedures involving potentially explosive diazo compounds.
ChemInform Abstract: A Facile Approach to Spirocyclic 2‐Azido Indolines via Azidation of Indoles with Ceric Ammonium Nitrate.
Authors: Li Jing , Liu Mao , Li Qi , Tian Hua , Shi Yian 
Published: April 2015

AbstractThe oxidative azidation of indoles (I), (IV), and (VI) leads to desired spirocyclic 2‐azido indolines.
ChemInform Abstract: Catalytic Asymmetric Construction of 3,3′‐Spirooxindoles Fused with Seven‐Membered Rings by Enantioselective Tandem Reactions.
Authors: Wang Yang , Shi Feng , Yao Xi‐Xi , Sun Meng , Dong Liang , Tu Shu‐Jiang 
Published: April 2015

AbstractThe title species are prepared with high enantiopurity from isatins, 1,2‐phenylenediamines, and 1,3‐diketones in a single transformation.
ChemInform Abstract: Organocatalytic, Enantioselective, Intramolecular Oxa‐Michael Reaction of Alkoxyboronate: A New Strategy for Enantioenriched 1‐Substituted 1,3‐Dihydroisobenzofurans.
Authors: Ravindra Barnala , Das Braja Gopal , Ghorai Prasanta 
Published: April 2015

AbstractThe enantiomeric excess of the products may be further increased to <99% by recrystallization.
ChemInform Abstract: Synthesis of Highly Substituted N‐(Furan‐3‐ylmethylene)benzenesulfonamides by a Gold(I)‐Catalyzed Oxidation/1,2‐Alkynyl Migration/Cyclization Cascade.
Authors: Wang Tao , Huang Long , Shi Shuai , Rudolph Matthias , Hashmi A. Stephen K. 
Published: April 2015

AbstractA rarely observed 1,2‐alkynyl migration occurs in the Au‐catalyzed cyclization of diynes to give tosylimine furans.
ChemInform Abstract: Diastereo‐ and Enantioselective Propargylation of Benzofuranones Catalyzed by Pybox‐Copper Complex.
Authors: Zhao Long , Huang Guanxin , Guo Beibei , Xu Lijun , Chen Jie , Cao Weiguo , Zhao Gang , Wu Xiaoyu 
Published: April 2015

AbstractIn addition to the propargylation of benzofuranones, this scalable method is also applicable to the corresponding transformation of indanone [cf.
ChemInform Abstract: Catalyst‐Free Synthesis of Trisubstituted Tetrahydrothiophenes in Water via a Cascade Sulfa‐Michael/Aldol (Henry) Type Reaction.
Authors: Song Jian , Moss Jamia , Yang Da‐Cheng , Guan Zhi , He Yan‐Hong 
Published: April 2015

AbstractTitle compounds are synthesized by a facile, highly atom‐efficient, and eco‐friendly procedure in excellent diastereoselectivities, in general.
ChemInform Abstract: Palladium Catalyzed Dual C—H Functionalization of Indoles with Cyclic Diaryliodoniums, an Approach to Ring Fused Carbazole Derivatives.
Authors: Wu Yongcheng , Peng Xiaopeng , Luo Bingling , Wu Fuhai , Liu Bo , Song Fenyun , Huang Peng , Wen Shijun 
Published: April 2015

AbstractA series of dibenzocarbazoles is readily prepared by a Pd‐catalyzed cyclization of indoles with diaryliodoniumtriflates (II) via an intermolecular C2 arylation of indoles and a subsequent intramolecular C3 arylation.
ChemInform Abstract: Base‐Catalyzed Intramolecular Hydroamination of Cyclohexa‐2,5‐dienes: Insights into the Mechanism Through DFT Calculations and Application to the Total Synthesis of epi‐Elwesine.
Authors: Rousseau Geraldine , Lebeuf Raphael , Schenk Kurt , Castet Frederic , Robert Frederic , Landais Yannick 
Published: April 2015

AbstractDifferent pyrrolidine regioisomers are obtained from the intramolecular hydroamination of dienes.
ChemInform Abstract: Substituent Enabled Divergent Synthesis of N‐Heterocycles: A Metal Carbene Approach Involving Intramolecular Carbene Interception.
Authors: Xu Hua‐Dong 
Published: April 2015

AbstractThe competitive intramolecular capture of a rhodium carbene generated in situ from carbene precursors 1‐sulfonyltriazoles allows a divergent synthesis of indoles or aza‐bicyclohexanes.
ChemInform Abstract: Phosphotungstic Acid as an Efficient Catalyst for Allylation of Isatins and N‐tert‐Butyloxycarbonylamido Sulfones under Solvent‐Free Conditions.
Authors: Ghosh Debashis , Saravanan S. , Gupta Naveen , Abdi Sayed H. R. , Khan Noor‐ul H. , Kureshy Rukhsana I. , Bajaj Hari C. 
Published: April 2015

AbstractAn efficient procedure for the allylation of less‐reactive isatins and N‐protected amido sulfones is developed using phosphotungstic acid as catalyst.
ChemInform Abstract: Novel and Thermally Stable Ionic Liquid (TBA Acetate) for Domino Reaction: Synthesis of Spirooxindoles via New Mechanistic Way.
Authors: Riyaz Sd , Indrasena A. , Naidu A. , Dubey P. K. 
Published: April 2015

AbstractA simple, efficient and environmentally benign method for the three component, one‐pot synthesis of spirooxindoles using ionic liquid tetrabutylammonium acetate as an inexpensive catalyst as well as reaction medium.
ChemInform Abstract: 1‐Butylimidazole‐Derived Ionic Liquids: Synthesis, Characterization and Evaluation of Their Antibacterial, Antifungal and Anticancer Activities.
Authors: Ranjan Prabodh , Kitawat Bheru Singh , Singh Man 
Published: April 2015

AbstractTitle compounds (III) are eco‐friendly synthesized in high yields and purities under solvent‐free conditions without the necessity of further purification.
ChemInform Abstract: Nickel‐Catalyzed Decarboxylative Arylation of Heteroarenes Through sp2 C—H Functionalization.
Authors: Yang Ke , Wang Peng , Zhang Cheng , Kadi Adnan A. , Fun Hoong‐Kun , Zhang Yan , Lu Hongjian 
Published: April 2015

AbstractThe direct decarboxylative arylation of hetereoarenes with benzoic acids through a nickel‐catalyzed sp2 C—H functionalization process is developed.
ChemInform Abstract: Cu(II)‐Mediated C—S/N—S Bond Formation via C—H Activation: Access to Benzoisothiazolones Using Elemental Sulfur.
Authors: Chen Fa‐Jie , Liao Gang , Li Xin , Wu Jun , Shi Bing‐Feng 
Published: April 2015

AbstractThe synthetic versatility of the products deriving from this scalable reaction is exemplified by numerous transformations of N‐protected benzoisothiazolone [cf.
ChemInform Abstract: Simple Access to 5‐Carboalkoxy‐2,3‐dihydro‐4H‐pyran‐4‐ones via Domino Acylative Electrocyclization: The First Three Step Total Synthesis of the Dihydronaphthopyran‐4‐one Class of Natural Products.
Authors: Ilangovan Andivelu , Sakthivel Palaniappan 
Published: April 2015

AbstractOptimum reaction conditions are examined for the CaCl2‐catalyzed synthesis of title compounds (III).
ChemInform Abstract: Benzylamine as an Arylcarboxy Surrogate: A Copper Catalyzed o‐Benzoxylation of 2‐Phenylpyridines Using Benzyl Amines.
Authors: Behera Ahalya , Rout Saroj K. , Guin Srimanta , Patel Bhisma K. 
Published: April 2015

AbstractFor the first time, benzylamine is used as a synthetic equivalent of an arylcarboxy group.
ChemInform Abstract: Rhodium(I)‐Catalyzed “ene‐Type” Cycloisomerization of N‐[2‐(2‐Alkyn‐1‐yl)phenyl]carbodiimides Leading to 3‐(cis‐Alken‐1‐yl)‐2‐aminoquinolines.
Authors: Otani Takashi , Onishi Misato , Seino Takafumi , Furukawa Naoki , Saito Takao 
Published: April 2015

AbstractTitle compounds such as (II), (IV), and (VI) are synthesized in high E‐selectivity.
ChemInform Abstract: New Synthetic Approach for the Preparation of 1‐Aryl‐3,4‐dihydroisoquinolines by Liebeskind—Srogl Reaction.
Authors: Abranyi‐Balogh Peter , Slegel Peter , Volk Balazs , Pongo Laszlo , Milen Matyas 
Published: April 2015

AbstractThe reaction tolerates diversely substituted aryl boronic acids except 2‐cyano and 2‐chlorophenyl boronic acids.
ChemInform Abstract: Diastereoselective Synthesis of Methanopyridoxazocinones.
Authors: Detistov Oleksandr S. , Panda Siva S. , Steel Peter J. , Asiri Abdullah M. , Hall C. Dennis , Katritzky Alan R. 
Published: April 2015

AbstractTwo different approaches to the title compounds are elaborated using either substituted 7‐azacoumarins, enolizable ketones and primary amines [cf.
ChemInform Abstract: Construction of Axial Chirality by Rhodium‐Catalyzed Asymmetric Dehydrogenative Heck Coupling of Biaryl Compounds with Alkenes.
Authors: Zheng Jun , You Shu‐Li 
Published: April 2015

AbstractA variety of biaryl compounds with benzo[h]isoquinolinyl moieties is alkenylated via Heck coupling with high regio‐ and enantioselectivity.
ChemInform Abstract: Electrogenerated Base‐Promoted Synthesis of 5‐Aryl‐5,6‐dihydro‐2H‐pyrano[2,3‐d]pyrimidine‐2,4,7‐triones by Multicomponent Assembly of Barbituric Acid, Aldehydes and Meldrum′s Acid at Room Temperature.
Authors: Veisi Hojat , Maleki Abbas , Omrani Zahra , Lotfi Shahram 
Published: April 2015

AbstractAn electrochemical procedure is presented to synthesize the title compounds (IV) by a three‐component one‐pot reaction of aromatic aldehydes, Meldrum′s acid and barbituric acid.
ChemInform Abstract: C—N and C—P Bond Formation via Cross Dehydrative Coupling Reaction: An Efficient Synthesis of Novel 3,4‐Dihydroquinazolines.
Authors: Saidulu G. , Kumar R. Arun , Anitha T. , Srinivasulu A. , Sridhar B. , Liu Shiuh Tzung , Reddy K. Rajender 
Published: April 2015

AbstractStructurally diverse C‐4‐amidyl‐ and C‐4‐phosphonyl‐3,4‐dihydroquinazoline derivatives (III)/(V) are efficiently obtained via dehydrative cross‐coupling reaction utilizing either an inexpensive iron catalyst or metal‐free conditions.
ChemInform Abstract: A Catalytic Diastereoselective Formal [5 + 2] Cycloaddition Approach to Azepino[1,2‐a]indoles: Putative Donor‐Acceptor Cyclobutanes as Reactive Intermediates.
Authors: Shenje Raynold , Martin M. Cynthia , France Stefan 
Published: April 2015

AbstractAlkyl‐substituted terminal double bonds [e.
ChemInform Abstract: An Efficient Synthesis of Benzodiazepine Derivatives via a One‐Pot, Three‐Component Reaction Accelerated by a Chitosan‐Supported Superparamagnetic Iron Oxide Nanocomposite.
Authors: Maleki Ali , Kamalzare Maryam 
Published: April 2015

AbstractThe catalyst utilized in this green procedure is recycled and reused in four additional cycles without loss of its activity.
ChemInform Abstract: Diversity‐Oriented Synthesis of Drug‐Like Macrocyclic Scaffolds Using an Orthogonal Organo‐ and Metal Catalysis Strategy.
Authors: Grossmann Andre , Bartlett Sean , Janecek Matej , Hodgkinson James T. , Spring David R. 
Published: April 2015

AbstractKey features of the strategy are NHC‐mediated organocoupling and Grubbs‐catalyzed metathesis reaction.
ChemInform Abstract: Silver‐Promoted Oxidative Cyclization of 1,6‐Enynes: Highly Regioselective Synthesis of Phosphorated Fluorene Derivatives.
Authors: Zhou Zhao‐Zhao , Jin Dong‐Po , Li Lian‐Hua , He Yu‐Tao , Zhou Ping‐Xin , Yan Xiao‐Biao , Liu Xue‐Yuan , Liang Yong‐Min 
Published: April 2015

AbstractThe reduction of the pentavalent phosphine in the products to a trivalent one is demonstrated for one product (XII).
ChemInform Abstract: Rhenium‐Catalyzed Synthesis of 2H‐1,2‐Oxaphosphorin 2‐Oxides via the Regio‐ and Stereoselective Addition Reaction of β‐Keto Phosphonates with Alkynes.
Authors: Murai Masahito , Nakamura Masahiro , Takai Kazuhiko 
Published: April 2015

Abstractβ‐Ketophosphonates undergo a regio‐ and stereoselective insertion reaction with alkynes to form δ‐phosphonyl‐α,β‐unsaturated ketone intermediates which are cyclized to form the title compounds (III) and (V) in moderate yields.
ChemInform Abstract: Briarenolide J, the First 12‐Chlorobriarane Diterpenoid from an Octocoral Briareum sp. (Briareidae).
Authors: Sheu Jyh‐Horng 
Published: April 2015

AbstractThis novel compound exhibits inhibitory effects on the generation of superoxide anions and the release of elastase by human neutrophils.
ChemInform Abstract: Lupane‐Triterpenoids from Stem Bark of Dillenia indica.
Authors: Ghosh Partha Sarathi , Sarma Indrajit Sil , Sato Noriko , Harigaya Yoshihiro , Dinda Biswanath 
Published: April 2015

AbstractA new lupane‐triterpene acid ester, dillenic acid (I), is isolated along with four known compounds from the stem bark of Dillenia indica Linn (Dilleniaceae).
ChemInform Abstract: Phase‐Transfer‐Catalyzed Asymmetric SNAr Reaction of α‐Amino Acid Derivatives with Arene Chromium Complexes.
Authors: Shirakawa Seiji , Yamamoto Kenichiro , Maruoka Keiji 
Published: April 2015

AbstractThis method overcomes the limitations of previous phase‐transfer‐catalyzed asymmetric α‐arylations of carbonyl compounds, which were limited to arenes with strong electron‐withdrawing substituents as electrophiles.
ChemInform Abstract: Synthesis of Bis‐α‐amino Acids Through Proline Catalyzed Asymmetric α‐Amination of Higher Homologues of Garner′s Aldehyde.
Authors: Petakamsetty Ramu , Das Ram Pada , Ramapanicker Ramesh 
Published: April 2015

AbstractThe convenient synthesis of bis‐α‐amino acid esters involves the proline catalyzed highly diastereoselective α‐hydrazination of aldehydes (I) with dibenzyl azodicarboxylate as the key step.
ChemInform Abstract: New Isoquinoline Alkaloids from the Stem Bark of Berberis aristata.
Authors: Ahamad Javed , Naquvi Kamran J. , Ali Mohd , Mir Showkat R. 
Published: April 2015

Abstractisolation of three new isoquinoline alkaloids, berberine phenoxide (I), ketoberberine benzoate A (II), and ketoberberine benzoate B (III)/
ChemInform Abstract: Ion Exchange in Hydroxyapatite with Lanthanides.
Authors: Cawthray Jacqueline F. , Creagh A. Louise , Haynes Charles A. , Orvig Chris 
Published: April 2015

AbstractThe thermodynamics of ion exchange in hydroxyapatite (Ca5(PO4)3(OH)) with La3+, Sm3+, Gd3+, Ho3+, Yb3+, and Lu3+ is investigated by isothermal titration calorimetry.
ChemInform Abstract: Experimental and Theoretical Perspectives of the Noyori‐Ikariya Asymmetric Transfer Hydrogenation of Imines
Authors: Vaclavik Jiri , Sot Petr , Pechacek Jan , Vilhanova Beata , Matuska Ondrej , Kuzma Marek , Kacer Petr 
Published: April 2015

AbstractReview: 87 refs.