bluuebunny/crossref_metadata_2025_split huggingface dataset:
Patients without prolonged QRS after TAVI with CoreValve device do not experience high‐degree atrio‐ventricular block
Authors: Mouillet Gauthier , Lellouche Nicolas , Lim Pascal , Meguro Kentaro , Yamamoto Masanori , Deux Jean‐François , Monin Jean‐Luc , Bergoënd Eric , Dubois‐Randé Jean‐Luc , Teiger Emmanuel 
Published: September 2012

ObjectiveTo identify clinical and electrical factors predicting delayed high‐degree atrio‐ventricular block (AVB) after transcatheter aortic valve implantation (TAVI).BackgroundTAVI is a new technique for treating severe aortic valve stenosis in patients at high surgical risk but can be followed by high‐grade AVB requiring permanent pacing (PP).Methods and ResultsThe study included 79 patients (82 ± 17 years, Euroscore = 23% ± 10%) free of PP need before and immediately after TAVI procedure. Delayed high‐degree AVB was defined by types 2 or 3 AVB diagnosed at least 24 hr after the index procedure. Permanent pacemaker implantation was performed for all these patients. We compared clinical and electrical variables before and after TAVI in patients with delayed AVB or not. TAVI was performed successfully in all patients. The 21 (26%) patients who exhibited delayed high‐grade AVB had significantly deeper prosthesis implantation (12 ± 4 mm vs. 9 ± 5 mm, P = 0.03) and wider post‐TAVI QRS duration (155 ± 17 msec vs. 131 ± 25 msec, P = 0.0004), with no difference in baseline QRS duration. Post‐TAVI QRS duration was the only independent predictor of post‐TAVI permanent for delayed high‐degree AVB (P = 0.02). After a mean follow‐up of 10 ± 8 months, all 21 patients with post‐TAVI QRS ≤128 msec were free of high‐grade AVB, whereas 21/55 (38%) patients with post‐TAVI QRS >128 msec had PP (P = 0.0016).ConclusionDelayed (>24 hr after the procedure) high‐grade AVB necessitating PP is common after TAVI. QRS duration measured immediately after TAVI was the best independent predictor of PP in this population. Patients with QRS ≤128 msec immediately after TAVI had no risk of requiring PP. © 2012 Wiley, Periodicals, Inc.
ChemInform Abstract: Luminescence Properties and Crystallographic Sites for Eu3+ Ions in Fluorthalenite Y3Si3O10F.
Authors: Jang Kyoung Hyuk , Khaidukov N. M. , Tuyen Vu Phi , Kim Sun Il , Yu Young Moon , Seo Hyo Jin 
Published: September 2012

AbstractThe new Y3Si3O10F:Eu3+ phosphor is hydrothermally synthesized from aqueous mixtures of Y2O3, Eu2O3, SiO2, and HF (autoclave, 250 °C, 120 h).
ChemInform Abstract: Ba2Bi1.4Nb0.6O6: A Nonferroelectric, High Premittivity Oxide.
Authors: Tan Chaou C. , Feteira Antonio , Sinclair Derek C. 
Published: September 2012

AbstractBa2Bi1.4Nb0.6O6 is characterized by a combination of variable temperature XRD and impedance spectroscopy.
ChemInform Abstract: Synthesis and Properties of Monocrystalline Al(As1‐xPx)Si3 Alloys on Si(100).
Authors: Grzybowski G. , Watkins T. , Beeler R. T. , Jiang L. , Smith D. J. , Chizmeshya A. V. G. , Kouvetakis J. , Menendez J. 
Published: September 2012

AbstractThe new title materials are grown on Si(100) at 490—500 °C as single‐phase epitaxial layers with monocrystalline diamond‐like structures using reactions of Al atomic beams with As(SiH3)3 and P(SiH3)3.
ChemInform Abstract: Calorimetric Investigation of New Bi12.5Dy1.5ReO24.5 Phase.
Authors: Matskevich Nata I. , Wolf Thomas 
Published: September 2012

AbstractThe title compound is prepared from a mixture of Bi2O3, Re2O7, and Dy2O3 (1070 K, 70 h) and characterized by XRD and calorimetric measurements.
ChemInform Abstract: Synthesis of Nitrided MoO2 and Its Application as Anode Materials for Lithium‐Ion Batteries.
Authors: Yoon Sukeun , Jung Kyu‐Nam , Jin Chang Soo , Shin Kyung‐Hee 
Published: September 2012

AbstractNitrided MoO2 is hydrothermally synthesized from a saturated (NH4)6Mo7O24 solution in HNO3 (autoclave, 200 °C, 35 h) followed by nitridation of the obtained MoO2 powders with NH3 gas for 12 h at 550—650 °C.
ChemInform Abstract: Synthesis and Characterization of α‐, β‐, and γ‐Ga2O3 Prepared from Aqueous Solutions by Controlled Precipitation.
Authors: Li Liandi , Wei Wei , Behrens Malte 
Published: September 2012

Abstractα‐ and β‐Ga2O3 are prepared by calcination of α‐GaOOH at 350 and 700 °C, respectively.
ChemInform Abstract: Rapid Microwave Preparation of Thermoelectric TiNiSn and TiCoSb Half‐Heusler Compounds.
Authors: Stucky Galen D. , et al. et al. 
Published: September 2012

AbstractThe title compounds are synthesized from stoichiometric mixtures of the elements in a domestic microwave oven using granular carbon as microwave susceptor material (1 min) followed by a densification step involving hot‐pressing (84 MPa, 1173 K, 1 h).
ChemInform Abstract: Synthesis and Structure of a New Family of 3d‐4f Heterometallic Compounds Rb7LnFe6O2(PO4)8 (Ln: Sm, Eu, Gd, Dy): Magnetic Properties of the Sm‐, Gd‐, Dy‐Derivatives.
Authors: Sanjeewa Liurukara D. , West J. Palmer , Hwu Shiou‐Jyh 
Published: September 2012

AbstractThe title compounds are synthesized by reaction of Ln2O3 (Ln: Sm, Eu, Gd, Dy), Fe2O3, P4O10, and KO2 in an equimolar RbCl/RbI flux (evacuated silica tube, 800 °C, 2 d).
ChemInform Abstract: Ternary CaCu4P2‐Type Pnictides AAg4Pn2 (A: Sr, Eu; Pn: As, Sb).
Authors: Stoyko Stanislav S. , Khatun Mansura , Mullen C. Scott , Mar Arthur 
Published: September 2012

AbstractThe new title compounds are prepared by reactions of stoichiometric mixtures of the elements (alumina crucible, 850 °C, 1—4 d) and characterized by single crystal XRD.
ChemInform Abstract: Efficient, Low Cost Synthesis of Sodium Platinum Bronze NaxPt3O4.
Authors: Horwat David , Dehmas Moukrane , Gutierrez Alejandro , Pierson Jean‐Francois , Anders Andre , Soldera Flavio , Endrino Jose‐Luis 
Published: September 2012

AbstractLarge quantities of NaxPt3O4 are prepared with a purity higher than 95% by deposition of PtOy (magnetron sputtering in pure oxygen at a pressure of 4 Pa) on a soda lime glass followed by annealing in air at atmospheric pressure (above 550 °C).
ChemInform Abstract: “Bottom‐Up” Embedding of the Joergensen—Hayashi Catalyst into a Chiral Porous Polymer for Highly Efficient Heterogeneous Asymmetric Organocatalysis.
Authors: Wang Chang An , Zhang Zhi Kun , Yue Tao , Sun Ya Lei , Wang Lei , Wang Wei David , Zhang Yuan , Liu Chong , Wang Wei 
Published: September 2012

AbstractThe title catalyst, which contains both micropores and mesopores and wide openings and interconnected nanopores which ensure its activity.
ChemInform Abstract: Palladium‐Catalyzed Asymmetric Quaternary Stereocenter Formation.
Authors: Gottumukkala Aditya L. , Matcha Kiran , Lutz Martin , de Vries Johannes G. , Minnaard Adriaan J. 
Published: September 2012

AbstractA variety of β,β‐disubstituted carbocyclic, heterocyclic, and acyclic enones undergo a conjugate addition of arylboronic acids in the presence of an optimized Pd(II)/Ag(I) catalyst.
ChemInform Abstract: Doubly Stereocontrolled Asymmetric Michael Addition of Acetylactone to Nitroolefins Promoted by an Isosteviol‐Derived Bifunctional Thiourea.
Authors: Ma Zhi‐wei , Liu Yu‐xia , Huo Li‐Juan , Gao Xiang , Tao Jing‐chao 
Published: September 2012

AbstractA novel class of isosteviol‐derived bifunctional thiourea catalysts [cf.
ChemInform Abstract: anti‐Markovnikov Additions to N‐Allylic Derivatives Involving Ammonium—Carbenium Superelectrophiles.
Authors: Compain Guillaume , Martin‐Mingot Agnes , Frapper Gilles , Bachmann Christian , Houannetaud Marie‐Paule , Thibaudeau Sebastien 
Published: September 2012

AbstractThe work includes mechanistical studies, by means of deuterium labeling as well as DFT‐experiments.
ChemInform Abstract: An Intramolecular [2 + 2] Cycloaddition of Ketenimines via Palladium‐Catalyzed Rearrangements of N‐Allyl‐Ynamides.
Authors: DeKorver Kyle A. , Hsung Richard P. , Song Wang‐Ze , Wang Xiao‐Na , Walton Mary C. 
Published: September 2012

AbstractTreatment of N‐allyl‐ynamides of type (I), (IV), (IX), and (XI) with Pd(PPh3)4 results in formation of bridged or fused bicycloimines depending on the alkene substitution.
ChemInform Abstract: Gold‐Catalyzed Isomerization of Unactivated Allenes into 1,3‐Dienes under Ambient Conditions.
Authors: Ting Chun‐Ming , Hsu Yi‐Ling , Liu Rai‐Shung 
Published: September 2012

AbstractThe isomerization of di‐, tri‐, and tetrasubstituted allenes into 1,3‐dienes is achieved in the presence of catalytic amounts of a AuCl3/nitrosobenzene system.
ChemInform Abstract: Ferritin‐Supported Palladium Nanoclusters: Selective Catalysts for Aerobic Oxidations in Water.
Authors: Kanbak‐Aksu S. , Hasan M. Nahid , Hagen W. R. , Hollmann F. , Sordi D. , Sheldon R. A. , Arends I. W. C. E. 
Published: September 2012

AbstractThe catalytic system is prepared from highly stable ferritin from the hyperthermophile Pyrococcus furiosus in high purity through a very simple procedure.
ChemInform Abstract: Copper‐Catalyzed Direct Amination of Polyfluoroarenes and Azoles with Hydroxylamines and Its Application to the Synthesis of 3‐Aminobenzoheteroles.
Authors: Matsuda Naoki , Hirano Koji , Satoh Tetsuya , Miura Masahiro 
Published: September 2012

AbstractThe protocol allows the room temperature C—H amination with O‐acylated hydroxylamines.
ChemInform Abstract: Palladium‐Catalyzed Alkenylation and Alkynylation of ortho‐C(sp2)—H Bonds of Benzylamine Picolinamides.
Authors: Zhao Yingsheng , He Gang , Nack William A. , Chen Gong 
Published: September 2012

AbstractA new and efficient method to prepare ortho‐alkenylated and ortho‐alkynylated benzylamines is reported.
ChemInform Abstract: Switching Regioselectivity in the Allylation of Imines by N‐Side Chain Tuning.
Authors: Delaye Pierre‐Olivier , Vasse Jean‐Luc , Szymoniak Jan 
Published: September 2012

AbstractIt is found that nitrogen side chain tuning can induce reversal of regioselectivity in addition of allylzincs to imines.
ChemInform Abstract: Acetylphosphonate as a Surrogate of Acetate or Acetamide in Organocatalyzed Enantioselective Aldol Reactions.
Authors: Guang Jie , Guo Qunsheng , Zhao John Cong‐Gui 
Published: September 2012

AbstractIt is found that the alkaloids (I) efficiently promote the asymmetric reaction of activated carbonyl compounds with the acetylphosphonates (III) and (IX).
ChemInform Abstract: Primary Amine, Thiourea‐Based Dual Catalysis Motif for Synthesis of Stereogenic, All‐Carbon Quaternary Center‐Containing Cycloalkanones.
Authors: Kang Jun Yong , Carter Rich G. 
Published: September 2012

AbstractIt is found that the thioureas (I) efficiently promote the regio‐ and stereoselective formation of α,α‐disubstituted cyclopentanones, cyclohexanones, tetrahydropyranones as well as tetrahydrothiopyranones from α‐substituted cycloalkanones.
ChemInform Abstract: Synthesis of Sterically Hindered Enamides via a Ti‐Mediated Condensation of Amides with Aldehydes and Ketones.
Authors: Genovino Julien , Lagu Bharat , Wang Yaping , Toure B. Barry 
Published: September 2012

AbstractThe reaction proceeds at room temperature and affords polysubstituted (E)‐enamides.
ChemInform Abstract: N,N‐Diarylammonium Pyrosulfate as a Highly Effective Reverse Micelle‐Type Catalyst for Hydrolysis of Esters.
Authors: Koshikari Yoshiki , Sakakura Akira , Ishihara Kazuaki 
Published: September 2012

AbstractIt is found that the pyrosulfate (APS) efficiently promotes the hydrolysis of a number of esters without loss of optical purity.
ChemInform Abstract: Boric Acid: A Highly Efficient Catalyst for Transamidation of Carboxamides with Amines.
Authors: Nguyen Thanh Binh , Sorres Jonathan , Tran Minh Quan , Ermolenko Ludmila , Al‐Mourabit Ali 
Published: September 2012

AbstractUnder these conditions a wide range of carboxamides can be prepared.
ChemInform Abstract: Access to C(sp3)—C(sp2) and C(sp2)—C(sp2) Bond Formation via Sequential Intermolecular Carbopalladation of Multiple Carbon—Carbon Bonds.
Authors: Wen Yanmei , Huang Liangbin , Jiang Huanfeng 
Published: September 2012

AbstractTreatment of alkynes with benzyl chlorides and monosubstituted alkenes in the presence of Pd(OAc)2 provides a new, efficient, regio‐ and stereoselective approach to 4‐benzylated 1,3‐butadienes.
ChemInform Abstract: Consecutive Reactions of Dialkyl Ethynyl Carbinols with Acetylene in Superbase KOH/DMSO Suspension.
Authors: Schmidt Elena Yu. , Bidusenko Ivan A. , Zorina Nadezhda V. , Ushakov Igor A. , Mikhaleva Al'bina I. , Klyba Ludmila V. , Trofimov Boris A. 
Published: September 2012

AbstractReaction of the tertiary propargylic alcohol (I) with acetylene in the superbase KOH/DMSO gives the expected vinyl ether (III) along with dioxolane (IV) and vinylated acetylenic dimers (V) and (VI).
ChemInform Abstract: Synthesis and Antimicrobial Activities of Structurally Novel S,S′‐Bis(heterosubstituted) Disulfides.
Authors: Ramaraju Praveen , Gergeres Danielle , Turos Edward , Dockey Sonja , Lim Daniel V. , Thomas John , Anderson Burt 
Published: September 2012

AbstractA variety of novel title disulfides is synthesized and evaluated for antimicrobial cytostatic activity.
ChemInform Abstract: Enantioselective Synthesis of Nitrocyclopropanes via Conjugate Addition of Bromomalonate to Nitroalkenes Catalyzed by Ni(II) Complexes.
Authors: Lee Hyun Joo , Kim Sun Mi , Kim Dae Young 
Published: September 2012

AbstractThe air‐ and moisture‐stable chiral nickel complex (I) is successfully applied to the title reactions.
ChemInform Abstract: Synthesis of Trifluoromethyl‐Substituted Cyclopropanes via Sequential Kharasch—Dehalogenation Reactions.
Authors: Risse Julie , Fernandez‐Zumel Mariano A. , Cudre Yanouk , Severin Kay 
Published: September 2012

AbstractIt provides a new approach to trifluoromethylated cyclopropanes.
ChemInform Abstract: Enantioselective Addition of Carbon Acids to α‐Nitroalkenes: The First Asymmetric Aminocatalytic Reaction in Liquefied Carbon Dioxide.
Authors: Nigmatov A. G. , Kuchurov I. V. , Siyutkin D. E. , Zlotin S. G. 
Published: September 2012

AbstractThe title reactions produce Michael adducts with enantioselectivities which are comparable to those obtained in organic solvents.
ChemInform Abstract: Enantioselective Ring‐Opening Reaction of Epoxides with MeOH Catalyzed by Homochiral Metal—Organic Framework.
Authors: Tanaka Koichi , Otani Ken‐ichi , Murase Takanori , Nishihote Shyota , Urbanczyk‐Lipkowska Zofia 
Published: September 2012

AbstractMetal‐organic frameworks, obtained from BDA, Cu(NO3)2 and Ph‐NMe2, are applied as Lewis acid catalysts in the title reaction.
ChemInform Abstract: Pd‐Catalyzed Domino Carbonylative—Decarboxylative Allylation: An Easy and Selective Monoallylation of Ketones.
Authors: Giboulot Steven , Liron Frederic , Prestat Guillame , Wahl Benoit , Sauthier Mathieu , Castanet Yves , Mortreux Andre , Poli Giovanni 
Published: September 2012

AbstractTo some extend, substituted allyl alcohols can be used as well.
ChemInform Abstract: Efficient Asymmetric Aldol Reaction Catalyzed by Polyvinylidene Chloride‐Supported Ionic Liquid/L‐Proline Catalyst System.
Authors: Zhang Xuan , Zhao Wenshan , Qu Chengke , Yang Lili , Cui Yuanchen 
Published: September 2012

AbstractA novel PVC‐supported ionic liquid—L‐proline combined organocatalyst is successfully applied in the asymmetric aldol reaction of aromatic aldehydes with cyclic and acyclic ketones.
ChemInform Abstract: One‐Pot Synthesis of β‐Keto Esters and Preparation of 3‐Ketopalmitoyl‐CoA (IV).
Authors: Kosak Urban , Kovac Andreja , Gobec Stanislav 
Published: September 2012

AbstractBase‐mediated reaction of ethyl acetoacetate with acyl chlorides provides β‐keto esters in low yields.
ChemInform Abstract: Sodium Methoxide: A Simple but Highly Efficient Catalyst for the Direct Amidation of Esters.
Authors: Ohshima Takashi , Hayashi Yukiko , Agura Kazushi , Fujii Yuka , Yoshiyama Asako , Mashima Kazushi 
Published: September 2012

AbstractThe first catalytic system for amide bond formation is presented by using a mild, nontoxic, environmentally benign, and convenient synthetic protocol.
ChemInform Abstract: Diacetoxyiodobenzene Mediated One‐Pot Synthesis of Diverse Carboxamides from Aldehydes.
Authors: Prasad Virendra , Kale Raju R. , Mishra Bhuwan B. , Kumar Dhananjay , Tiwari Vinod K. 
Published: September 2012

AbstractIt provides a new, facile, efficient, and widely applicable method to prepare carboxamides.
ChemInform Abstract: A Novel Oxidative Transformation of Alcohols to Nitriles: An Efficient Utility of Azides as a Nitrogen Source.
Authors: Rokade Balaji V. , Malekar Sanjeev K. , Prabhu Kandikere Ramaiah 
Published: September 2012

AbstractThe title method tolerates a variety of oxidizable functional groups and a few useful protecting groups.
ChemInform Abstract: Regioselective Synthesis of 6‐[Chloro(difluoro)methyl]salicylates by [3 + 3] Cyclocondensations of 1,3‐Bis(trimethylsilyloxy)buta‐1,3‐dienes with 1‐Chloro‐1,1‐difluoro‐4‐(trimethylsilyloxy)pent‐3‐en‐2‐one.
Authors: Erfle Silke , Reimann Sebastian , Bunescu Alina , Abilov Zharylkasyn A. , Spannenberg Anke , Langer Peter 
Published: September 2012

AbstractThe convenient new synthesis of the title compounds, which are not readily available by other methods, is reported.
ChemInform Abstract: Palladium‐Catalyzed Aminosulfonylation of Aryl‐, Alkenyl‐ and Heteroaryl Halides: Scope of the Three‐Component Synthesis of N‐Aminosulfonamides.
Authors: Emmett Edward J. , Richards‐Taylor Charlotte S. , Nguyen Bao , Garcia‐Rubia Alfonso , Hayter Barry R. , Willis Michael C. 
Published: September 2012

AbstractFor the first time the title reaction is possible by using an easy to handle and bench‐stable equivalent of sulfur dioxide, DABCO·2SO2.
ChemInform Abstract: Ag(I)‐Catalyzed Carbon—Carbon Bond Formation Between a Ketone and an Allylic C—H Bond.
Authors: Pati Kamalkishore , Liu Rai‐Shung 
Published: September 2012

AbstractMechanistic aspects are elucidated by deuterium labeling experiments, revealing that the cyclization proceeds via a prior isomerization to an external olefin, followed by a carbonyl‐ene reaction.
ChemInform Abstract: Copper‐Catalyzed Highly Selective Semihydrogenation of Non‐Polar Carbon—Carbon Multiple Bonds Using a Silane and an Alcohol.
Authors: Semba Kazuhiko , Fujihara Tetsuaki , Xu Tinghua , Terao Jun , Tsuji Yasushi 
Published: September 2012

AbstractThe optimized conditions are applied to a wide range of internal and terminal alkynes to provide the products with complete (Z)‐selectivity.
ChemInform Abstract: Syntheses of Polyfunctionalized Resveratrol Derivatives Using Wittig and Heck Protocols.
Authors: Chalal Malik , Vervandier‐Fasseur Dominique , Meunier Philippe , Cattey Helene , Hierso Jean‐Cyrille 
Published: September 2012

AbstractIn the modified Wittig reaction, Tms is used as a highly valuable protecting group of the phenolic functions of the starting arenes.
ChemInform Abstract: Asymmetric H—D Exchange Reactions of Fluorinated Aromatic Ketones.
Authors: Zhao Yujun , Lim Xiaozhi , Pan Yuanhang , Zong Lili , Feng Wei , Tan Choon‐Hong , Huang Kuo‐Wei 
Published: September 2012

AbstractThe first asymmetric H—D exchange is reported.
ChemInform Abstract: Synthesis of Fluorene Derivatives Through Rhodium‐Catalyzed Dehydrogenative Cyclization.
Authors: Morimoto Keisuke , Itoh Masaki , Hirano Koji , Satoh Tetsuya , Shibata Yu , Tanaka Ken , Miura Masahiro 
Published: September 2012

AbstractThe straightforward route to fluorenes involves the cleavage of 2 C—H bonds.
ChemInform Abstract: Catalytic Arylation of a C—H Bond in Pyridine and Related Six‐Membered N‐Heteroarenes Using Organozinc Reagents.
Authors: Hyodo Isao , Tobisu Mamoru , Chatani Naoto 
Published: September 2012

AbstractArylation of electron‐deficient N‐heteroarenes is achieved either with organozinc reagents through nickel catalysis or with arylboronic acids generating the active zinc reagent in situ.
ChemInform Abstract: Asymmetric Catalytic Epoxidation of α,β‐Unsaturated Carbonyl Compounds with Hydrogen Peroxide: Additive‐Free and Wide Substrate Scope.
Authors: Chu Yangyang , Liu Xiaohua , Li Wei , Hu Xiaolei , Lin Lili , Feng Xiaoming 
Published: September 2012

AbstractThe attractive, scalable, simple, mild, and environmentally‐benign title reaction is presented with a reusable, water and air‐tolerated catalytic system.
ChemInform Abstract: Prins Cyclization of Bis(silyl) Homoallylic Alcohols to Form 2,6‐cis‐Tetrahydropyrans Containing a Geometrically Defined Exocyclic Vinylsilane: Efficient Synthesis of Ring B of the Bryostatins.
Authors: Lu Ji , Song Zhenlei , Zhang Yuebao , Gan Zubao , Li Hongze 
Published: September 2012

AbstractThe cyclization shows excellent cis and (Z) selectivity to form tetrahydropyrans containing a geometrically defined exocyclic vinylsilane.
ChemInform Abstract: Synthesis of Halogenated α,β‐Unsaturated γ‐Butyrolactone Derivatives by Triphenylphosphine‐Catalyzed Cyclization of α‐Halogeno Ketones with Dialkyl Acetylenedicarboxylates (= Dialkyl But‐2‐ynedioates).
Authors: Asghari Sakineh , Habibi Ahmad Khabbazi 
Published: September 2012

AbstractThe presence of α‐halogen atoms is crucial to success of this cyclization reaction.
ChemInform Abstract: Enantioselective Bromolactonization of cis‐1,2‐Disubstituted Olefinic Acids Using an Amino‐Thiocarbamate Catalyst.
Authors: Tan Chong Kiat , Le Chancheng , Yeung Ying‐Yeung 
Published: September 2012

AbstractIn the case of derivatives (Ic) and (If), traces of the respective 6‐endo lactone are also obtained.
ChemInform Abstract: Manganese(III) Acetate Mediated Oxidative Radical Cyclizations. Toward Vicinal All‐Carbon Quaternary Stereocenters.
Authors: Logan Angus W. J. , Parker Jeremy S. , Hallside Michal S. , Burton Jonathan W. 
Published: September 2012

AbstractUsing this method a number of sterically congested [3.3.0]‐bicyclic γ‐lactones containing vicinal all‐carbon quaternary stereocenters can be prepared.
ChemInform Abstract: Copper‐Catalyzed Complete Regio‐ and Stereoselective Cyclization of 3‐Aryl‐1‐sulfanyl‐4‐oxahepta‐1,6‐diynes Triggered by Alkynylation.
Authors: Yoshimatsu Mitsuhiro , Sasaki Hitomi , Sugimoto Yuko , Nagase Yuya , Tanabe Genzoh , Muraoka Osamu 
Published: September 2012

AbstractThe title reaction allows a new, regio‐, and stereoselective access to 3,4‐dialkylidenefurans of type (III) and (VII).
ChemInform Abstract: Enantioselective Synthesis of α‐Alkylidene‐γ‐butyrolactones: Intramolecular Rauhut—Currier Reaction Promoted by Acid/Base Organocatalysts.
Authors: Takizawa Shinobu , Nguyen Tue Minh‐Nhat , Grossmann Andre , Enders Dieter , Sasai Hiroaki 
Published: September 2012

AbstractAn atom‐economical, chemo‐, diastereo‐, and enantioselective approach is presented.
ChemInform Abstract: Europium(III) Triflate‐Catalyzed Trofimov Synthesis of Polyfunctionalized Pyrroles.
Authors: Madabhushi Sridhar , Vangipuram Venkata Sairam , Mallu Kishore Kumar Reddy , Chinthala Narsaiah , Beeram China Ramanaiah 
Published: September 2012

AbstractA variety of tri‐ and tetrasubstituted pyrrole derivatives is prepared.
ChemInform Abstract: Phosphine‐Catalyzed Intramolecular γ‐Umpolung Addition of α‐Aminoalkylallenic Esters: Facile Synthesis of 3‐Carbethoxy‐2‐alkyl‐3‐pyrrolines.
Authors: Andrews Ian P. , Blank Brian R. , Kwon Ohyun 
Published: September 2012

AbstractThe synthesis of the title compounds is the first example of this type of addition occurring via 5‐endo cyclization.
ChemInform Abstract: Asymmetric Cross Aldol Addition of Isatins with α,β‐Unsaturated Ketones Catalyzed by a Bifunctional Broensted Acid—Broensted Base Organocatalyst.
Authors: Liu Guo‐Gui , Zhao Hua , Lan Yu‐Bao , Wu Bin , Huang Xiao‐Fei , Chen Jian , Tao Jing‐Chao , Wang Xing‐Wang 
Published: September 2012

AbstractBoth enantiomers of 3‐hydroxyindolinone adducts can be prepared by using the two epimers RCI and SCI of a cinchona alkaloid derived thiourea.
ChemInform Abstract: An Organocatalytic Cascade Strategy for the Enantioselective Construction of Spirocyclopentane Bioxindoles Containing Three Contiguous Stereocenters and Two Spiro Quaternary Centers.
Authors: Sun Wangsheng , Zhu Gongming , Wu Chongyang , Hong Liang , Wang Rui 
Published: September 2012

AbstractChiral squaramide SQA efficiently catalyzes the title reaction of a methyleneindolinone with a (bromoethyl)indolinone to give the dispirocyclopentane compounds as mixtures of three diastereomers with up to 64% d.e.