bluuebunny/crossref_metadata_2025_split huggingface dataset:
Origin of the Superior Performance of (Thio)Squaramides over (Thio)Ureas in Organocatalysis
Authors: Lu Tongxiang , Wheeler Steven E. 
Published: October 2013

AbstractThe Diels–Alder cycloaddition of anthracene and nitrostyrene catalyzed by the squaramide‐derived aminocatalysts (Sq) recently reported by Jørgensen and co‐workers (Angew. Chem.­ 2012, 124, 10 417; Angew. Chem. Int. Ed.­ 2012, 51, 10 271) has been studied by using modern tools of computational quantum chemistry. This catalyst is compared with analogous urea‐, thiourea‐, and thiosquaramide‐derived aminocatalysts. Ultimately, a thiosquar‐amide‐derived catalyst is predicted to result in the lowest free‐energy barrier, while retaining the same high degree of enantioselectivity as Sq. This stems in part from the superior hydrogen‐bonding ability of thiosquaramides, compared to squaramides and (thio)ureas. We also examine the hydrogen‐bonding ability of (thio)ureas and (thio)‐squaramides in model complexes. In contrast to previous work, we show that aromaticity does not contribute significantly to the enhanced hydrogen‐bonding interactions of squaramides. Overall, thiosquaramide, which has not been explored in the context of either organocatalysis or molecular recognition, is predicted to lead to strong, co‐planar hydrogen bonds, and should serve as a potent hydrogen‐bonding element in a myriad of applications.
ChemInform Abstract: Rare‐Earth Manganese Germanides RE2+xMnGe2+y (RE: La, Ce) Built from Four‐Membered Rings and Stellae quadrangulae of Mn‐Centred Tetrahedra.
Authors: Oliynyk Anton O. , Mar Arthur 
Published: October 2013

AbstractLa2+xMnGe2+y (I) and Ce2+xMnGe2+y (II) are prepared by arc‐melting of the elements in molar ratios of 2:1:2 followed by annealing (sealed silica tubes, 800 °C, 2 weeks).
ChemInform Abstract: Li3Ti4NiMnO12 and Li3Ti4NiCrO12: New Substituted Lithium Titanium Oxides.
Authors: El‐Shinawi Hany , Falk Mareike , Greaves Colin , Janek Juergen 
Published: October 2013

AbstractThe title compounds are synthesized by a sol—gel process from stoichiometric amounts of LiOAc, Ti(O‐iPr)4, Ni(OAc)2, Mn(OAc)2, and Cr(acac)3 dissolved in acetic acid and mixed with EDTA dissolved in NH3 solution.
ChemInform Abstract: Structural, Optical and Electric Properties of Nanocrystalline MgSe Thin Films Deposited by Chemical Route Using Triethanolamine as a Complexing Agent.
Authors: Ubale Ashok U. , Sakhare Y. S. , Ibrahim S. G. , Belkhedkar M. R. 
Published: October 2013

AbstractMgSe thin films are deposited onto highly clean glass substrates from aqueous solutions of MgCl2, SeO2, N2H4·H2O, and triethanolamine at room temperature.
ChemInform Abstract: Enhanced Ferromagnetic Order in Sr4Mn3O3(GeO4)3 Featuring Canted [MnO4]∞ Spin Chains of Mixed‐Valent Mn(III)/Mn(IV). Aliovalent Substitution of the Sr4‐xLnxMnIII2+xMn IV1‐xO3(GeO4)3 Solid‐Solution.
Authors: West J. Palmer , Sulejmanovic Dino , Becht Gregory , He Jian , Hitchcock Dale , Yan Yonggao , Hwu Shiou‐Jyh 
Published: October 2013

AbstractCrystals of Sr4‐xLnxMn3O3 (GeO4)3 (x = 0; x ≈ 0.15 for Ln: La, Pr, Nd, Sm, Eu, Gd, Dy; x ≈ 0.3 for Ln: Gd) are grown by solid state reactions of SrO, Ln2O3, MnO2 and Mn2O3, and GeO2 in a eutectic CsCl/SrCl2 flux (700 °C, 4 d).
ChemInform Abstract: Synthesis, Crystal Structure and Properties of [(dien)2Mn]Ge2S4 with Mixed‐Valent Ge Centers.
Authors: Yue Cheng‐Yang , Yuan Zhuang‐Dong , Zhang Lu‐Ge , Wang Ya‐Bai , Liu Guo‐Dong , Gong Liao‐Kuo , Lei Xiao‐Wu 
Published: October 2013

AbstractThe new title compound (dien: diethylenetriamine) is solvothermally synthesized from a mixture of Ge powder, Mn(OAc)2, and sulfur powder in aqueous dien solution (autoclave, 130 °C, 7 d, 7% yield).
ChemInform Abstract: Ruthenium‐Catalyzed Oxidation of Alcohols by Bromate in Water.
Authors: Hu Zongmin , Ma Li , Xie Jianhui , Du Hongxia , Lam William W. Y. , Lau Tai‐Chu 
Published: October 2013

AbstractAn efficient catalyst is applied to the oxidation of secondary‐ and primary alcohols to the corresponding ketones (II) or mixtures of aldehydes (IV) and carboxylic acids (V) with excellent conversions at room temperature.
ChemInform Abstract: Facile Synthesis of Ninhydrin and Isatin Based Hydrazones in Water Using PEG‐OSO3H as a Highly Efficient and Homogeneous Polymeric Acid‐Surfactant Combined Catalyst.
Authors: Debnath Kamalesh , Pathak Sudipta , Pramanik Animesh 
Published: October 2013

AbstractTitle compounds (III) and (V) are synthesized via reaction of ninhydrin (I) and isatin (IV) with the novel carbazate (II).
ChemInform Abstract: Construction of Enantiomerically Enriched Diazo Compounds Using Diazo Esters as Nucleophiles: Chiral Lewis Base Catalysis.
Authors: Mao Haibin , Lin Aijun , Shi Yan , Mao Zhijie , Zhu Xuebin , Li Weipeng , Hu Hongwen , Cheng Yixiang , Zhu Chengjian 
Published: October 2013

AbstractSynthetic application of this method is demonstrated by several subsequent transformations, i.e.
ChemInform Abstract: Self‐Assembling Neodymium/Sodium Heterobimetallic Asymmetric Catalyst Confined in a Carbon Nanotube Network.
Authors: Ogawa Takanori , Kumagai Naoya , Shibasaki Masakatsu 
Published: October 2013

AbstractA self‐assembled catalyst is shown to be efficient in anti‐selective asymmetric nitro‐aldol reactions.
ChemInform Abstract: A New and Efficient Method for the Synthesis of α,α‐Dihaloketones by Oxyhalogenation of Alkynes Using Oxone®—KX (X: Cl, Br, or I).
Authors: Madabhushi Sridhar , Jillella Raveendra , Mallu Kishore Kumar Reddy , Godala Kondal Reddy , Vangipuram Venkata Sairam 
Published: October 2013

AbstractThis is the first application of oxone as an oxidant for oxyhalogenation of alkynes.
ChemInform Abstract: Calcined Mg—Al Layered Double Hydroxide as a Heterogeneous Catalyst for the Synthesis of Urea Derivatives from Amines and CO2.
Authors: Zhang Ran , Hua Li , Guo Li , Song Baoning , Chen Jizhong , Hou Zhenshan 
Published: October 2013

AbstractThe title process gives the ureas in moderate yields and high selectivity (<99%).
ChemInform Abstract: Synthesis of Nitrodienes, Nitrostyrenes, and Nitrobiaryls Through Palladium‐Catalyzed Couplings of β‐Nitrovinyl and o‐Nitroaryls Thioethers.
Authors: Creech Gardner S. , Kwon Ohyun 
Published: October 2013

AbstractPalladium‐catalyzed, copper‐activated desulfitative coupling reactions of thioethers with boronic acids allow the synthesis of a wide range of the title nitro compounds under mild conditions.
ChemInform Abstract: Chemoselective Hydroamination of Vinyl Arenes Catalyzed by an NHC‐Amidate‐Alkoxide Pd(II) Complex and p‐TsOH.
Authors: Giles Richard , O'Neill Justin , Lee Joo Ho , Chiu Michael K. , Jung Kyung Woon 
Published: October 2013

AbstractReaction of halide‐substituted and electron‐rich styrenes (I) with Ph—SO2—NH2 in the presence of a Pd(II)—NHC/TosOH catalyst system afford the cross‐coupled hydroamination products (III) in moderate to high yields in a Markovnikov‐type fashion.
ChemInform Abstract: CuBr2 Catalyzed Bromination/Oxidation of Isochromans to Benzaldehyde Derivatives.
Authors: Zhou Mei‐Yan , Kong Shan‐Shan , Zhang Ling‐Qiong , Zhao Ming , Duan Jin‐Ao , Zhen Ou‐yang , Wang Min 
Published: October 2013

AbstractThis new and efficient reaction is more suitable for isochromanes bearing no strong electron withdrawing or electron donating groups.
ChemInform Abstract: Dendrimers or Nanoparticles as Supports for the Design of Efficient and Recoverable Organocatalysts?
Authors: Keller Michel , Perrier Arnaud , Linhardt Roland , Travers Laurie , Wittmann Sebastian , Caminade Anne‐Marie , Majoral Jean‐Pierre , Reiser Oliver , Ouali Armelle 
Published: October 2013

AbstractDendrimers grafted with (S)‐α,α‐diphenylproline trimethylsilyl ether moieties are presented as organocatalysts.
ChemInform Abstract: Copper‐Mediated C—H Trifluoromethylation of Quinones.
Authors: Ilchenko Nadia O. , Janson Paer G. , Szabo Kalman J. 
Published: October 2013

AbstractA copper(I)‐mediated trifluoromethylation of substituted quinones via C‐H activation and by using a hypervalent iodine reagents as trifluoromethylene‐source is reported.
ChemInform Abstract: Rhodium(I)‐Catalyzed Enantioselective Hydrogenation of Substituted Acrylic Acids with Sterically Similar β,β‐Diaryls.
Authors: Li Yang , Dong Kaiwu , Wang Zheng , Ding Kuiling 
Published: October 2013

AbstractAn efficient asymmetric Rh(I)‐catalyzed hydrogenation of β,β‐disubstituted acrylic acids is developed using a BINOL‐derived phosphine oxide as monodentate chiral ligand.
ChemInform Abstract: Desulfonylation of Tosyl Amides Through Catalytic Photoredox Cleavage of N—S Bond under Visible‐Light Irradiation.
Authors: Xuan Jun , Li Bin‐Jie , Feng Zhu‐Jia , Sun Guo‐Dong , Ma Huan‐Huan , Yuan Zhi‐Wei , Chen Jia‐Rong , Lu Liang‐Qiu , Xiao Wen‐Jing 
Published: October 2013

AbstractThis new desulfonylation is applicable to a wide range of tosyl amides bearing different sensitive functional groups.
ChemInform Abstract: Copper‐Catalyzed Oxidative Condensation of α‐Oxocarboxylic Acids with Formamides: Synthesis of α‐Ketoamides.
Authors: Wang Hua , Guo Li‐Na , Duan Xin‐Hua 
Published: October 2013

AbstractMechanistic studies show that the reaction proceeds via a radical process.
ChemInform Abstract: Diastereoselective Formation of 2,3,4,5‐Tetrasubstituted Tetrahydrofurans by a Lewis Acid Promoted Addition of C3‐Substituted 1,3‐Bis(silyl)propenes to Aldehydes.
Authors: Borg Tessie , Timmer Brian , Somfai Peter 
Published: October 2013

AbstractThe optimized reaction conditions result in the preferred formation of tetrahydrofurans (III) which are obtained as single diastereomers.
ChemInform Abstract: Gold‐Catalyzed Regioselective Synthesis of 2‐ and 3‐Alkynyl Furans.
Authors: Li Yifan , Brand Jonathan P. , Waser Jerome 
Published: October 2013

AbstractProcedures are developed for the selective synthesis of 2‐ and 3‐alkynylated furans based on the use of hypervalent iodine reagents and gold catalysis.
ChemInform Abstract: Solvent‐Free Iridium(III)‐Catalyzed [2 + 2 + 2] Cycloaddition Providing Access to Fused Arenes: Isoindolines, Dihydroisobenzofurans and Indanes.
Authors: Auvinet Anne‐Laure , Michelet Veronique , Ratovelomanana‐Vidal Virginie 
Published: October 2013

AbstractCarbon‐, nitrogen‐, and carbon‐tethered diynes undergo [2 + 2 + 2] cycloaddition reactions with alkynes to give the title species in moderate to good yields.
ChemInform Abstract: Rhodium(III)‐Catalyzed Indazole Synthesis by C—H Bond Functionalization and Cyclative Capture.
Authors: Lian Yajing , Bergman Robert G. , Lavis Luke D. , Ellman Jonathan A. 
Published: October 2013

AbstractRegioselectivity of the reaction is mainly controlled by the steric effects of the aromatic substituent at nitrogen [cf.
ChemInform Abstract: New Strategy for the Regioselective Synthesis of 1‐Phenyl‐3‐trifluoromethyl‐1H‐pyrazoles.
Authors: Zanatta Nilo , Amaral Simone S. , dos Santos Josiane M. , da Silva Andreia M. P. W. , Schneider Juliana M. F. M. , Fernandes Liana da S. , Bonacorso Helio G. , Martins Marcos A. P. 
Published: October 2013

AbstractTitle compounds (IV) are obtained in a two‐step procedure that involves the reaction of enones (I) with hydrazones (II), followed by deprotective hydrolysis and intramolecular nucleophilic heterocyclization.
ChemInform Abstract: Asymmetric Construction of Fluorinated Imidazolidines via Cu(I)‐Catalyzed exo‐Selective 1,3‐Dipolar Cycloaddition of Azomethine Ylides with Fluorinated Imines.
Authors: Li Qing‐Hua , Wei Liang , Chen Xuan , Wang Chun‐Jiang 
Published: October 2013

AbstractAn efficient method is elaborated for the asymmetric synthesis of fluorinated imidazolidines (III) and (IX) by a 1,3‐dipolar cycloaddition reaction.
ChemInform Abstract: Synthesis and Evaluation of an O‐Aminated Naphthol AS‐E as a Prodrug of CREB‐Mediated Gene Transcription Inhibition.
Authors: Xie Fuchun , Li Bingbing X. , Xiao Xiangshu 
Published: October 2013

AbstractDuring the synthesis of O‐aminated naphthol AS‐E (IV), a novel reaction leading to oxazole (III) is discovered.
ChemInform Abstract: Novel Methods for the Synthesis of 4‐(Azol‐5‐yl)isoxazoles.
Authors: Bakulev V. A. , Efimov I. V. , Belyaev N. A. , Zhidovinov S. S. , Rozin Yu. A. , Volkova N. N. , Khabarova A. A. , El'tsov O. S. 
Published: October 2013

AbstractThree title compounds of type (V) are prepared by the [3 + 2] cycloaddition reaction of enamines (III) and nitrile oxides generated in situ from hydroxamoyl chlorides.
ChemInform Abstract: Synthesis of New Series of 3‐Hydroxy/Acetoxy‐2‐phenyl‐4H‐chromen‐4‐ones and Their Biological Importance.
Authors: Gharpure Mangesh , Choudhary Ratiram , Ingle Vishwas , Juneja Harjeet 
Published: October 2013

AbstractThe title compounds (II), (III) are screened for their antimicrobial activity against S.
ChemInform Abstract: Synthesis of Ethyl 5‐Acetyl‐1‐R‐4‐aryl‐6‐hydroxy‐6‐methyl‐2‐oxopiperidine‐3‐carboxylates.
Authors: Sargsyan M. S. , Hayotsyan S. S. , Khachatryan A. Kh. , Badasyan A. E. , Panosyan G. A. , Kon'kova S. G. 
Published: October 2013

Abstract5 Title compounds (III) are prepared from ethoxycarbonyl‐acetamides (I) and arylidene acetylacetones (II) by heterocyclization.
ChemInform Abstract: A New MCM‐41 Supported HPF6 Catalyst for the Library Synthesis of Highly Substituted 1,4‐Diyhdropyridines and Oxidation to Pyridines: Report of One‐Dimensional Packing Towards LMSOMs and Studies on Their Photophysical Properties.
Authors: Ray Suman , Brown Mike , Bhaumik Asim , Dutta Arghya , Mukhopadhyay Chhanda 
Published: October 2013

AbstractA series of substituted 1,4‐dihydropyridines (IV) is readily prepared by a multi‐component condensation of diketones (I) with ketones (II), aryl aldehydes (III), and ammonium carbonate using MCM‐41 supported HPF6 as a novel heterogeneous catalyst.
ChemInform Abstract: Synthesis and Antitumor Activity of Novel Coumarin Derivatives via a Three‐Component Reaction in Water.
Authors: Chen Zhiwei , Bi Jianhao , Su Weike 
Published: October 2013

AbstractIn a three‐component condensation catalyzed by the ionic liquid L‐2‐(hydroxymethyl)‐1‐(4‐sulfobutyl)pyrrolidinium hydrogen sulfate (HYSBPI) novel coumarin derivatives are obtained with excellent yields under microwave irradiation.
ChemInform Abstract: Synthesis and Antioxidant Activity of New Analogues of Quin‐C1.
Authors: Mierina I. , Tetere Z. , Zicane D. , Ravina I. , Turks M. , Jure M. 
Published: October 2013

AbstractNewly synthesized tetrahydroquinazoline derivatives of type (III) show weak antioxidant activity.
ChemInform Abstract: Synthesis of 7‐Alkyl‐4‐amino‐7H‐pyrrolo[2,3‐d]pyrimidine‐6‐carboxylic Acids.
Authors: Verves E. V. , Kucher A. V. , Muzychka L. V. , Smolii O. B. 
Published: October 2013

Abstract12 Title compounds of type (V) are prepared and screened for their potential biological activity.
ChemInform Abstract: A New Library of 4(3H)‐ and 4,4′(3H,3H′)‐Quinazolinones and 2‐(5‐Alkyl‐1,2,4‐oxadiazol‐3‐yl)quinazolin‐4(3H)‐one Obtained from Diaminoglyoxime.
Authors: Moghimi Abolghasem , Khanmiri Rahim Hosseinzadeh , Omrani Ismail , Shaabani Ahmad 
Published: October 2013

AbstractAcetic acid mediated condensation of diarylaminoglyoxime (I) with anthranilic acids (II) or aminobenzoate (VI) leads to the formation of quinazolinones.
ChemInform Abstract: A Simple One‐Pot Synthesis of 2‐Substituted Quinazolin‐4(3H)‐ones from 2‐Nitrobenzamides by Using Sodium Dithionite.
Authors: Romero Angel H. , Salazar Jose , Lopez Simon E. 
Published: October 2013

Abstract2‐Aminobenzamides, generated in situ from 2‐nitrobenzamides and Na2S2O4, react with aldehydes followed by cyclization and oxidation to furnish quinazoline derivatives.
ChemInform Abstract: Effective Synthesis of 3,5‐Diaryl‐(1H)‐pyrazin‐2‐ones via Microwave Mediated Ring Closure.
Authors: Johannes Eugen , Horbert Rebecca , Schlosser Joachim , Schmidt Dorian , Peifer Christian 
Published: October 2013

AbstractPyrazin‐2‐ones (II) (24 examples), present as scaffold in a number of biologically active compounds, are prepared via ring closure of diketoamides (I).
ChemInform Abstract: Hydrophosphinylation of Unactivated Alkenes with Secondary Phosphine Oxides under Visible‐Light Photocatalysis.
Authors: Yoo Woo‐Jin , Kobayashi Shu 
Published: October 2013

AbstractRhodamine B is applied as an inexpensive photocatalyst for the hydrophosphinylation reaction of alkenes (II) and (IV) with secondary phosphine oxides (I).
ChemInform Abstract: Direct Synthesis of β‐N‐Glycosides by the Reductive Glycosylation of Azides with Protected and Native Carbohydrate Donors.
Authors: Zheng Jianbin , Urkalan Kaveri Balan , Herzon Seth B. 
Published: October 2013

AbstractA β:α‐selectivity <15:1 is observed in all reactions.
ChemInform Abstract: Bioinspired Chemistry with Peptides — Asymmetric Catalysis, Molecular Scaffolds, Ag‐Nanoparticles
Authors: Wennemers Helma 
Published: October 2013

AbstractReview: utility of peptides for the development of asymmetric catalysts, templates for the controlled formation of metal nanoparticles, and conformationally well‐defied molecular scaffolds.; 35 refs.
ChemInform Abstract: Development and Applications of Highly Selective Palladium‐Catalyzed Monocoupling Reactions of (Cyclo)alkenes and 1,3‐Alkadienes Bearing Two or Three Electrophilic Sites and Bis(enol triflates) with Terminal Alkynes
Authors: Rossi Renzo , Bellina Fabio , Lessi Marco , Manzini Chiara 
Published: October 2013

AbstractReview: < 250 refs.
ChemInform Abstract: Interfacial Fabrication of Single‐Crystalline ZnTe Nanorods with High Blue Fluorescence.
Authors: Hou Linrui , Zhang Qiang , Ling Luting , Li Chen‐Xiong , Chen Li , Chen Su 
Published: October 2013

AbstractThe title nanorods are prepared by reaction of zinc acrylate dispersed in toluene with an aqueous solution of NaHTe in the presence of oleic acid as capping ligand at the toluene/water interface (90 °C, 4 h).
ChemInform Abstract: Novel Bifunctional Thiourea—Ammonium Salt Catalysts Derived from Amino Acids: Application to Highly Enantio‐ and Diastereoselective Aza‐Henry Reaction.
Authors: Wang Hong‐Yu , Cai Zhuo , Zhao Gang 
Published: October 2013

AbstractA novel type of bifunctional thiourea‐ammonium salt is developed and their use as chiral phase‐transfer catalyst in aza‐Henry reactions between amidosulfones and nitroalkanes is demonstrated.
ChemInform Abstract: Solvent Free Hydrostannation and Stille Reactions Using Ionic Liquid Supported Organotin Reagents.
Authors: Faye Djibril , Vybornyi Mykhailo , Boeda Fabien , Legoupy Stephanie 
Published: October 2013

AbstractThe title organotin reagent (I) is amenable to hydrostannation of alkynes under radical conditions to yield mixtures of E/Z‐olefins (III)/(IV).
ChemInform Abstract: Copper‐Catalyzed Trifluoromethylation‐Initiated Radical 1,2‐Aryl Migration in α,α‐Diaryl Allylic Alcohols.
Authors: Liu Xiaowu , Xiong Fei , Huang Xuanping , Xu Liang , Li Pengfei , Wu Xiaoxing 
Published: October 2013

AbstractThe title reaction is demonstrated by conversion of 1,1‐diaryl allyl alcohols (I) by using Togni′s reagent (II) as CF3‐source to furnish trifluormethylated ketones (III) in good yields.
ChemInform Abstract: Iron‐Catalyzed Regio‐ and Stereoselective Conjugate Addition of Aryl‐Grignard Reagents to α,β,γ,δ‐Unsaturated Sulfones and Its Synthetic Application.
Authors: Hata Takeshi , Nakada Takuya , Oh Yun Taek , Hirone Naoki , Urabe Hirokazu 
Published: October 2013

AbstractAn Fe(II)‐catalyzed selective δ‐addition of aryl‐Grignard reagents to α,β,γ,δ‐unsaturated sulfones (I) is presented.
ChemInform Abstract: Iodine/Water‐Mediated Oxidation of o‐Alkynylaroyl Compounds and Application of the Products of Oxidation in the Synthesis of Nitrogen Heterocycles.
Authors: Sakthivel Karuppusamy , Srinivasan Kannupal 
Published: October 2013

AbstractA facile iodine/water‐mediated oxidation of the triple bond of o‐alkynylaroyl compounds to furnish tricarbonyl products is reported.
ChemInform Abstract: Additive‐Controlled Regioselective Direct Asymmetric Aldol Reaction of Hydroxyacetone and Aldehyde.
Authors: Liu Ling‐yan , Wang Bing , Zhu Yunna , Chang Wei‐xing , Li Jing 
Published: October 2013

AbstractA novel dipeptide derivative is employed as the catalyst for the direct asymmetric aldol reaction of hydroxyacetone and various aldehydes.
ChemInform Abstract: Organocatalytic Diastereo‐ and Enantioselective Sulfa‐Michael Addition to α,β‐Disubstituted Nitroalkenes.
Authors: Pei Qing‐Lan , Han Wen‐Yong , Wu Zhi‐Jun , Zhang Xiao‐Mei , Yuan Wei‐Cheng 
Published: October 2013

AbstractThe preparation of thiols (III) proceeds with reasonable diastereo‐ and enantioselectivity.
ChemInform Abstract: Highly Efficient Synthesis of Spiro[oxazolidine‐2‐thione‐oxindoles] with 3‐Isothiocyanato Oxindoles and Aldehydes via an Organocatalytic Cascade Aldol‐Cyclization Reaction.
Authors: Chen Wen‐Bing , Han Wen‐Yong , Han Yan‐Yan , Zhang Xiao‐Mei , Yuan Wei‐Cheng 
Published: October 2013

AbstractOptimized conditions including optically active thioureas allow the synthesis of the title compounds in very short reaction times.
ChemInform Abstract: Copper‐Catalyzed Rearrangement of N‐Aryl Nitrones into Epoxyketimines.
Authors: Mo Dong‐Liang , Anderson Laura L. 
Published: October 2013

Abstractα,β‐Unsaturated nitrones (I) and (IV) undergo Cu(I)‐catalyzed oxygen‐atom transfer reaction to give α,β‐epoxyketimines, generally with excellent trans‐diastereoselectivity.
ChemInform Abstract: A Concise Synthesis of 3,4‐Fused Spiro[isobenzofuran‐3‐ones], Spiro[furo[3,4‐b]pyridin‐5(7H)‐ones], 3‐Aryl‐, and Alkylphthalides.
Authors: Kuethe Jeffrey T. , Maloney Kevin M. 
Published: October 2013

AbstractAn efficient one‐pot Barbier reaction between 2‐iodobenzoic acid esters and ketones or aldehydes is presented using generally iPrMgCl·LiCl or less often BuLi as the base.The methodology is extended to the use of o‐iodonitriles, analogous pyridine esters or nitriles as well as an o‐iodoindole ester as substrates.
ChemInform Abstract: L‐Proline Catalyzed Reaction of N‐Confused Porphyrin and Active Methylene Compounds.
Authors: Liu Bin , Li Xiaofang , Zhang Jie , Chmielewski Piotr J. 
Published: October 2013

AbstractL‐Proline as catalyst facilitates the formation of the carbanion derived from an active methylene compound, while simultaneously delivering protons to the N‐confused porphyrin.
ChemInform Abstract: Direct Regio‐, Diastereo‐, and Enantioselective Vinylogous Michael Addition of Prochiral 3‐Alkylideneoxindoles to Nitroolefins.
Authors: Rassu Gloria , Zambrano Vincenzo , Pinna Luigi , Curti Claudio , Battistini Lucia , Sartori Andrea , Pelosi Giorgio , Zanardi Franca , Casiraghi Giovanni 
Published: October 2013

AbstractThe asymmetric Michael addition of prochiral 3‐alkylideneoxindoles to nitroolefins is realized in the presence of a dihydroquinine derived thiourea catalyst.
ChemInform Abstract: Ring‐Rearrangement Metathesis of 7‐Azanorbornenes as an Entry to 1‐Azabicyclo[n.3.0]alkenones.
Authors: Rojas Victor , Carreras Javier , Avenoza Alberto , Busto Jesus H. , Peregrina Jesus M. 
Published: October 2013

AbstractThis metathesis reaction of the title bornenes allows the construction of pyrrolizidine, indolizidine, and pyrrolo[1,2‐α]azepine cores.
ChemInform Abstract: A Robust Protocol for Pd(II)‐Catalyzed C‐3 Arylation of (1H) Indazoles and Pyrazoles: Total Synthesis of Nigellidine Hydrobromide.
Authors: Ye Mengchun , Edmunds Andrew J. F. , Morris James A. , Sale David , Zhang Yejia , Yu Jin‐Quan 
Published: October 2013

AbstractA practical synthesis of a wide range of 3‐arylated indazoles and pyrazoles including the biologically active agent YD‐3 (VIIc) is developed.
ChemInform Abstract: An Efficient Preparation of 2‐Alkyl‐oxazoles from 2‐Iodooxazoles.
Authors: Zhang Xing , Liu Jun , Liu Yi , Du Yuguo 
Published: October 2013

AbstractAn efficient method for the synthesis of 2‐alkyl substituted oxazoles (III) via alkylborane mediated Suzuki‐coupling is described.