bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Efficient Photocatalytic Suzuki Cross‐Coupling Reactions on Au—Pd Alloy Nanoparticles under Visible Light Irradiation.
Authors: Xiao Qi , Sarina Sarina , Jaatinen Esa , Jia Jianfeng , Arnold Dennis P. , Liu Hongwei , Zhu Huaiyong 
Published: February 2015

AbstractThe obtained results show that the alloy nanoparticles efficiently couple thermal and photonic energy source to drive Suzuki reactions.
ChemInform Abstract: A Palladium‐Catalyzed Three‐Component‐Coupling Strategy for the Differential Vicinal Diarylation of Terminal 1,3‐Dienes.
Authors: Stokes Benjamin J. , Liao Longyan , de Andrade Aline Mendes , Wang Qiaofeng , Sigman Matthew S. 
Published: February 2015

AbstractAn interesting vicinal diarylation of terminal 1,3‐dienes is developed using a reagent mixture of aryldiazonium tetrafluoroborates and arylboronic acids.
ChemInform Abstract: Palladium‐Catalyzed Carbonylative Addition of Aryl Bromides to Arylalkynes: A Simple and Efficient Method for Chalcone Synthesis.
Authors: Zhang Sheng , Wang Liangguang , Feng Xiujuan , Bao Ming 
Published: February 2015

AbstractApplication of 4‐fluoroacetylene and 4‐formylphenyl acetylene or 4‐nitrophenyl bromide, respectively, leads to decomposition of the starting materials.
ChemInform Abstract: Copper‐Catalyzed Homo‐ and Cross‐Coupling Reactions of Terminal Alkynes in Ethyl Lactate.
Authors: Wan Jie‐Ping , Cao Shuo , Jing Yanfeng 
Published: February 2015

AbstractEthyl lactate is found to be an excellent medium for Glaser‐type homo‐ and cross‐coupling reactions of terminal alkynes furnishing the corresponding conjugated diynes in good to excellent yields.
ChemInform Abstract: A Convenient Tandem One‐Pot Synthesis of Donor—Acceptor‐Type Triphenylene 2,3‐Dicarboxylic Esters from Diarylacetylene.
Authors: Feng Chun , Tian Xian‐Li , Zhou Jing , Xiang Shi‐Kai , Yu Wen‐Hao , Wang Bi‐Qin , Hu Ping , Redshaw Carl , Zhao Ke‐Qing 
Published: February 2015

AbstractA new strategy for the direct synthesis of donor‐acceptor‐type triphenylene 2,3‐dicarboxylic esters in a one‐pot manner through a cascade reaction involving enyne metathesis of diarylacetylene, cycloaddition with a dienophile, and subsequent aromatization and oxidative cyclodehydrogenation is developed.
ChemInform Abstract: N‐Heterocyclic Carbene‐Catalyzed All Carbon‐[4 + 2] Cyclocondensation of α,β‐Unsaturated Acyl Chlorides with 3‐Alkylenyloxindoles
Authors: Shen Litao , Jia Wenqiang , Ye Song 
Published: February 2015

Abstractfurnishing spirocarbocyclic oxindoles (III) (20 examples) with good to high stereoselectivity
ChemInform Abstract: Silver‐Catalyzed Reaction of Enynals with Alkenes: A Tandem 1,3‐Dipolar Cycloaddition/Cyclopropanation.
Authors: Liang Renxiao , Ma Tongmei , Zhu Shifa 
Published: February 2015

AbstractThe tandem reaction allows the synthesis of various polycyclic compounds with good to excellent diastereoselectivities.
ChemInform Abstract: Cu(I)‐Catalyzed Reaction of Diazo Compounds with Terminal Alkynes: A Direct Synthesis of Trisubstituted Furans.
Authors: Hossain Mohammad Lokman , Ye Fei , Zhang Yan , Wang Jianbo 
Published: February 2015

AbstractWith the corresponding 2‐diazo‐3‐(methoxyimino)butanoate (VIII) N‐methoxypyrroles are also accessible in moderate yields.
ChemInform Abstract: Enantioselective Synthesis of Tetrahydrofuran Derivatives by Sequential Henry Reaction and Iodocyclization of γ,δ‐Unsaturated Alcohols.
Authors: Chen Li‐Yan , Chen Jia‐Rong , Cheng Hong‐Gang , Lu Liang‐Qiu , Xiao Wen‐Jing 
Published: February 2015

AbstractThe title one‐pot synthesis uses a novel chiral sulfoxide‐Schiff base hydride ligand and proceeds under mild reaction conditions tolerating a wide range of 4‐substituted γ,δ‐unsaturated aldehydes.
ChemInform Abstract: A Cycloaddition—Cyclization Combined Approach to Enantiopure 3‐Glycinyl‐4‐hydroxypyrrolidines and 3‐Substituted 4‐Hydroxyprolines.
Authors: Aouadi Kaiss , Abdoul‐Zabar Juliane , Msaddek Moncef , Praly Jean‐Pierre 
Published: February 2015

Abstract1,3‐Dipolar cycloaddition of a (‐)‐menthone derived nitrone as glycine equivalent with (E)‐ or (Z)‐1,4‐dichloro‐2‐butene affords bis(chloromethyl) substituted isoxazolidine cycloadducts.
ChemInform Abstract: Transition Metals in Organic Synthesis. Part 114. Silver(I)‐Catalyzed Route to Pyrroles: Synthesis of Halogenated Pseudilins as Allosteric Inhibitors for Myosin ATPase and X‐Ray Crystal Structures of the Protein‐Inhibitor Complexes.
Authors: Knoelker Hans‐Joachim , et al. et al. 
Published: February 2015

AbstractA silver(I)‐catalyzed cycloisomerization is used for preparation of pyrroles as precursors of halogenated pseudilines.
ChemInform Abstract: Regioselective Hydrodebromination of Polybrominated Indoles.
Authors: Chelucci Giorgio , Pinna Gerard A. , Pinna Giansalvo 
Published: February 2015

AbstractA reagent combination of NaBH4 and TMEDA in the presence of a Pd‐catalyst is found to be an efficient system for the regioselective hydrobromination of polybrominated indoles having a N‐methyl or N‐methoxycarbonyl substituent.
ChemInform Abstract: Broensted Acid Catalyzed Bisindolization of α‐Amido Acetals: Synthesis and Anticancer Activity of Bis(indolyl)ethanamino Derivatives.
Authors: Mari Michele , Tassoni Aurora , Lucarini Simone , Fanelli Mirco , Piersanti Giovanni , Spadoni Gilberto 
Published: February 2015

AbstractThe condensation of α‐aminoacetals with two equivalents of indoles offers an efficient synthesis of diindolylmethanes.
ChemInform Abstract: Aqueous Copper Nitrate Catalyzed Synthesis of 3‐Alkylideneoxindoles from α‐Diazo‐β‐ketoanilides.
Authors: Mo Shanyan , Yang Zhanhui , Xu Jiaxi 
Published: February 2015

AbstractThe title reaction allows the cyclization of a variety of N‐arylated α‐diazo‐β‐keto amides to indoles in moderate to excellent yields.
ChemInform Abstract: Highly Enantioselective Michael Addition of Malonates to β‐CF3‐β‐(3‐Indolyl)nitroalkenes: Construction of Trifluoromethylated All‐Carbon Quaternary Stereogenic Centers.
Authors: Ma Chun‐Hui , Kang Tai‐Ran , He Long , Liu Quan‐Zhong 
Published: February 2015

AbstractThe title reaction allows the synthesis of enantioenriched CF3‐containing indoles (III) and (V) having quarternary stereocenters.
ChemInform Abstract: Palladium‐Catalyzed Carbonylative α‐Arylation of 2‐Oxindoles with (Hetero)aryl Bromides: Efficient and Complementary Approach to 3‐Acyl‐2‐oxindoles.
Authors: Lian Zhong , Friis Stig D. , Skrydstrup Troels 
Published: February 2015

AbstractUnder optimized conditions 2‐oxindoles react with CO, generated ex situ from 9‐methylfluorene‐9‐carbonyl chloride, and aryl bromides to form 3‐acyl‐2‐oxindoles.
ChemInform Abstract: N‐Heterocyclic‐Carbene‐Catalyzed Synthesis of 2‐Aryl Indoles.
Authors: Hovey M. Todd , Check Christopher T. , Sipher Alexandra F. , Scheidt Karl A. 
Published: February 2015

AbstractThe formation of an acyl anion equivalent from the catalyst and aldehydes is crucial for this Umpolung type synthesis of 2‐aryl‐indoles.
ChemInform Abstract: Fe(OTf)3 Catalyzed Annulation of 2,3‐Disubstituted Indoles with Aziridines.
Authors: Liu Hua , Zheng Chao , You Shu‐Li 
Published: February 2015

AbstractFused polycyclic indole derivatives with two consecutive quaternary carbo‐centers are obtained by Fe(O‐Tf)3‐catalyzed [3 + 2] annulation reactions between N‐Tos aziridines and 2,3‐disubstituted indoles.
ChemInform Abstract: Rhodium(II)‐Catalyzed Tandem Aziridination and Ring‐Opening: Stereoselective Synthesis of Functionalized Tetrahydrofurans.
Authors: Unsworth William P. , Clark Nicola , Ronson Thomas O. , Stevens Kiri , Thompson Amber L. , Lamont Scott G. , Robertson Jeremy 
Published: February 2015

AbstractCompounds (IV) and (V) are isolated as a mixture.
ChemInform Abstract: An Efficient Synthesis of Isoxazoles and Pyrazoles under Ultrasound Irradiation.
Authors: Huang Zhi‐Bin , Li Li‐Li , Zhao Yan‐Wei , Wang Hui‐Yuan , Shi Da‐Qing 
Published: February 2015

AbstractA series of 5‐arylisoxazole (II) and related pyrazole derivatives (III) are synthesized via ultrasound assisted reactions of 3‐aminopropenone (I) with hydroxylamine or hydrazine hydrate, respectively.
ChemInform Abstract: Titanium Tetrabutoxide (TTBO) as Efficient Catalyst for Rapid One Pot Synthesis of 2‐Arylbenzothiazoles under Mild Conditions.
Authors: Naeimi Hossein , Heidarnezhad Arash 
Published: February 2015

AbstractA facile and mild protocol by using titanium tetrabutoxide as the catalyst is developed for the condensation of 2‐aminothiophenol with aromatic aldehydes to give 2‐arylbenzothiazoles, immediately.
ChemInform Abstract: ZrCl4‐Catalyzed C—O Bond to C—N Bond Formation: Synthesis of 1,2,3‐Triazoles and Their Biological Evaluation.
Authors: Sharma Gangavaram V. M. , Kumar Kandikonda Suresh , Kumar Buddana Sudheer , Reddy Sheri Venkata , Prakasham Reddy Shetty , Hugel Helmut 
Published: February 2015

Abstract5 Azides of type (II) and 20 triazoles of type (IV) are prepared (only few yields given).
ChemInform Abstract: Green Synthesis of 5‐Substituted‐1H‐1,2,3,4‐tetrazoles and 1‐Sustituted‐1H‐1,2,3,4‐tetrazoles via [3 + 2] Cycloaddition by Reusable Immobilized AlCl3 on γ‐Al2O3.
Authors: Marishetty Nanjundaswamy Hemmaragala , Abrahamse Heidi 
Published: February 2015

AbstractImmobilized AlCl3 on γ‐Al2O3 is shown to be an effective catalyst for the [3 + 2] cycloaddition of NaN3 to nitriles and amines yielding tetrazoles of type (II) or (V).
ChemInform Abstract: Indium‐Mediated Asymmetric Intramolecular Allenylation of N‐tert‐Butanesulfinyl Imines: Efficient and Practical Access to Chiral 3‐Allenyl‐4‐aminochromanes.
Authors: Su Lin , Zhu Ting‐Shun , Xu Ming‐Hua 
Published: February 2015

Abstract3‐Allenyl and 3‐vinyl‐aminochromanones (II) and (IV) are synthesized in a highly diastereoselective manner via intramolecular cyclization of sulfinylimines (I) and (III), respectively.
ChemInform Abstract: A Mild Method for the Regioselective Bromination of 2‐Aminopyridines.
Authors: Xu Tong , Zhou Wen , Wang Jing , Li Xue , Guo Jun‐Wen , Wang Bin 
Published: February 2015

AbstractThe regioselective bromination of 2‐aminopyridines in 5‐position is achieved using 1‐butylpyridinium bromide as the bromine source and hydrogen peroxide as the oxidant.
ChemInform Abstract: Syntheses of 3‐[(Alkylamino)methylene]‐6‐methylpyridine‐2,4(1H,3H)‐diones, 3‐Substituted 7‐Methyl‐2H‐pyrano[3,2‐c]pyridine‐2,5(6H)‐dione Fluorescence Probes, and Tetrahydro‐1H,9H‐2,10‐dioxa‐9‐azaanthracen‐1‐ones.
Authors: Prior Allan M. , Gunaratna Medha J. , Kikuchi Daisuke , Desper John , Kim Yunjeong , Chang Kyeong‐Ok , Maezawa Izumi , Jin Lee‐Way , Hua Duy H. 
Published: February 2015

AbstractVarious bicyclic and tricyclic heterocycles are synthesized by condensation and ring‐closing reactions, e.g. Knoevenagel and lactonization reaction.
ChemInform Abstract: The C—H Activation/1,3‐Diyne Strategy: Highly Selective Direct Synthesis of Diverse Bis‐heterocycles by RhIII Catalysis.
Authors: Yu Da‐Gang , de Azambuja Francisco , Gensch Tobias , Daniliuc Constantin G. , Glorius Frank 
Published: February 2015

AbstractA novel strategy is presented for the selective synthesis of bisheterocycles via Rh‐catalyzed reactions of 1,3‐diynes.
ChemInform Abstract: Ruthenium‐Catalyzed Direct C‐3 Oxidative Olefination of Imidazo[1,2‐a]pyridines.
Authors: Zhan Haiying , Zhao Limin , Li Naiying , Chen Longbin , Liu Jingyun , Liao Jinqiang , Cao Hua 
Published: February 2015

AbstractExcellent E‐stereoselectivity is obtained in the reaction with acrylates as olefination reagent, whereas the reaction of acrylonitrile gives a mixture of E/Z‐isomers.
ChemInform Abstract: Iron(III)‐Catalyzed Three‐Component Domino Strategy for the Synthesis of Imidazo[1,2‐a]pyridines.
Authors: Santra Sougata , Mitra Shubhanjan , Bagdi Avik Kumar , Majee Adinath , Hajra Alakananda 
Published: February 2015

AbstractImidazo[1,2‐a]pyridines are synthesized from 2‐aminopyridines, aldehydes and nitroalkanes in one pot following imine formation, aza‐Henry reaction, cyclization, and denitration sequence.
ChemInform Abstract: Lewis Acid Catalyzed Synthesis of Cyclic Carbonates, Precursors of 1,2‐ and 1,3‐Diols.
Authors: Cornil Johan , Gonnard Laurine , Guerinot Amandine , Reymond Sebastien , Cossy Janine 
Published: February 2015

AbstractThe synthetic value of this method is demonstrated by total synthesis of alpinikatin (X).
ChemInform Abstract: Regio‐ and Stereoselective Synthesis of Novel Spiropyrrolidines Through 1,3‐Dipolar Cycloaddition Reactions of Azomethine Ylides and 2‐Styrylquinazolin‐4(3H)‐ones.
Authors: Maurya Ram Awatar , Nayak Ranjita , Reddy Chada Narsimha , Kapure Jeevak Sopanrao , Nanubolu Jagadeesh Babu , Singarapu Kiran Kumar , Ajitha M. , Kamal Ahmed 
Published: February 2015

AbstractTitle compounds [(IV) and (VI)] are synthesized through 1,3‐dipolar cycloaddition of styrylquinazolinones (III) with azomethine ylides generated in situ from isatin (I) or acenaphthoquinone (V), resp., with L‐proline (II).
ChemInform Abstract: A Green and Expedient Synthesis of Enantiopure Diketopiperazines via Enzymatic Resolution of Unnatural Amino Acids.
Authors: Pereira Pedro C. , Arends Isabel W. C. E. , Sheldon Roger A. 
Published: February 2015

AbstractDipeptides (III) are stereoselectively prepared from D‐phenylglycine amide and racemic amino acids in the presence of an immobilized form of penicillin G acylase in aqueous medium.
ChemInform Abstract: The Copper(I)‐Catalyzed Tandem Reaction of O‐Alkynylphenyl Isothiocyanates with Isocyanides: A Rapid Synthesis of 5H‐Benzo[d]imidazo[5,1‐b][1,3]thiazines.
Authors: Hao Wenyan , Zeng Jiangbo , Cai Mingzhong 
Published: February 2015

AbstractSubstrates containing an alkyl‐substituted alkynyl group such as butyl, hexyl, or cyclopentyl do not react to the desired products.
ChemInform Abstract: Highly Enantioselective Rhodium(I)‐Catalyzed Carbonyl Carboacylations Initiated by C—C Bond Activation.
Authors: Souillart Laetitia , Cramer Nicolai 
Published: February 2015

AbstractThe intramolecular asymmetric carbonyl carbonylation of aldehydes and ketones affords bicyclic lactones with excellent enantioselectivities.
ChemInform Abstract: Synthesis of Silyl Monoperoxyketals by Regioselective Cobalt‐Catalyzed Peroxidation of Silyl Enol Ethers: Application to the Synthesis of 1,2‐Dioxolanes.
Authors: Hurlocker Brisa , Miner Matthew R. , Woerpel K. A. 
Published: February 2015

AbstractOptimized conditions for the oxidation of silyl enol ethers with molecular oxygen and triethylsilane are presented.
ChemInform Abstract: Cinchona‐Derived Thiourea Catalyzed Hydrophosphonylation of Ketimines — An Enantioselective Synthesis of α‐Amino Phosphonates.
Authors: Kumar Akshay , Sharma Vivek , Kaur Jasneet , Kumar Vikas , Mahajan Suhel , Kumar Naveen , Chimni Swapandeep Singh 
Published: February 2015

AbstractA one‐pot synthesis consisting of a aza‐Wittig and the phospha‐Mannich starting from isatin is also presented.
ChemInform Abstract: Multicomponent Reactions Involving Phosphines, Arynes and Aldehydes.
Authors: Bhunia Anup , Kaicharla Trinadh , Porwal Digvijay , Gonnade Rajesh G. , Biju Akkattu T. 
Published: February 2015

AbstractAsPh3 instead of PPh3 (II) does not trigger the annulation reaction.
ChemInform Abstract: A Direct Synthesis of Selenophenes by Cu‐Catalyzed One‐Pot Addition of a Selenium Moiety to (E,E)‐1,3‐Dienyl Bromides and Subsequent Nucleophilic Cyclization.
Authors: Maity Pintu , Kundu Debasish , Roy Rajdip , Ranu Brindaban C. 
Published: February 2015

AbstractAn efficient synthesis of selenophenes and thiophenes (XIII) via coupling of 1,3‐dienyl bromides (I) with KSeCN and thiourea, resp., is described.
ChemInform Abstract: Mollanol A, a Diterpenoid with a New C‐Nor‐D‐homograyanane Skeleton from the Fruits of Rhododendron molle.
Authors: Li Yong , Liu Yun‐Bao , Liu Yang‐Lan , Wang Chen , Wu Lian‐Qiu , Li Li , Ma Shuang‐Gang , Qu Jing , Yu Shi‐Shan 
Published: February 2015

AbstractTwo novel grayanoids, mollanol A (I) and rhodomollein XXV (II), are isolated.
ChemInform Abstract: Efficient Synthesis of Conformationally Constrained, Amino‐triazoloazepinone‐containing Di‐ and Tripeptides via a One‐Pot Ugi—Huisgen Tandem Reaction.
Authors: Barlow T. M. A. , Jida M. , Tourwe D. , Ballet S. 
Published: February 2015

AbstractA catalyst‐free method for the preparation of a 16‐membered library of aminotriazoloazepinones bearing di‐ and tripeptides with up to four points of diversity and high atom economy is developed.
ChemInform Abstract: α‐Selective Ribofuranosylation of Alcohols with Ribofuranosyl Iodides and Triphenylphosphine Oxide.
Authors: Oka Natsuhisa , Kajino Rin , Takeuchi Kaoru , Nagakawa Haruna , Ando Kaori 
Published: February 2015

AbstractA highly α‐diastereoselective synthesis of ribofuranosides is achieved through triphenylphosphine oxide mediated reaction of in situ generated β‐ribofuranosyl iodide with alcohols.
ChemInform Abstract: Divergent Synthesis of 2‐C‐Branched Pyranosides and Oxepines from 1,2‐gem‐Dibromocyclopropyl Carbohydrates.
Authors: Moore Peter W. , Schuster Julia K. , Hewitt Russell J. , Stone M. Rhia L. , Teesdale‐Spittle Paul H. , Harvey Joanne E. 
Published: February 2015

AbstractThe use of a base affords pyranosides, whereas silver salts gives the corresponding bromooxepines.
ChemInform Abstract: Synthesis and Glycosidase Inhibition Study of 2‐C‐Hydroxymethyl‐ and 6‐C‐Hydroxymethyl‐Branched Piperidines from D‐Glucose Using Ene‐Yne Metathesis as a Key Step.
Authors: Mallick Asadulla , Vankar Yashwant D. 
Published: February 2015

AbstractBased on Grubbs II catalyzed ene‐yne metathesis, the synthesis of title compounds such as (III) is described.
ChemInform Abstract: Methanesulfonic‐Acid‐Catalyzed Ring Opening and Glycosylation of 1,2‐(Acetylcyclopropane)‐Annulated D‐Lyxofuranose.
Authors: Wang Cong , Ma Xiaofeng , Zhang Jichao , Tang Qin , Jiao Wei , Shao Huawu 
Published: February 2015

AbstractThe D‐lyxofuranose derivative (I) undergoes ring‐opening and subsequent glycosylation reaction with alcohols, thiols, and pyrimidines to give the corresponding glycosylation products with high diastereoselectivities.
ChemInform Abstract: Access to Harmonine, a Chemical Weapon of Ladybird Beetles.
Authors: Chandra Philkhana Satish , Dhasaiyan Prabhu , Prasad B. L. V. , Reddy D. Srinivasa 
Published: February 2015

AbstractTitle compound (IV) is synthesized through three simple and practical routes using Wittig approach, cross metathesis reaction, or conversion of compound (VII) prepared from sophorolipids according to literature.
ChemInform Abstract: Enantiospecific Synthesis and Biological Investigations of a Nuphar Alkaloid: Proposed Structure of a Castoreum Component.
Authors: Seki Hajime , Georg Gunda I. 
Published: February 2015

AbstractTotal synthesis of the nuphar alkaloid (I) from N‐Boc‐L‐proline is achieved in nine steps and it shows affinity for the oxytocin receptor.
ChemInform Abstract: Isoindolinone‐Type Alkaloids from the Sponge‐Derived Fungus Stachybotrys chartarum.
Authors: Li Yong , Liu Dong , Cen Shan , Proksch Peter , Lin Wenhan 
Published: February 2015

AbstractEight new isoindolinone‐type alkaloids, chartarutines A—H, are isolated, characterized and evaluated for their HIV‐1 inhibitory activity.
ChemInform Abstract: Enantioselective Synthesis of (+)‐Penostatin E.
Authors: Fujioka Kosuke , Yokoe Hiromasa , Inoue Atsushi , Soga Kana , Tsubuki Masayoshi , Shishido Kozo 
Published: February 2015

AbstractThe enantioselective total synthesis of title compound (I), a cytotoxic metabolite produced by a strain of Penicillium sp, is described.
ChemInform Abstract: Involvement of Process Parameters and Various Modes of Application of TiO2 Nanoparticles in Heterogeneous Photocatalysis of Pharmaceutical Wastes — a Short Review
Authors: Sarkar Santanu , Das Ranjana , Choi Heechul , Bhattacharjee Chiranjib 
Published: February 2015

AbstractReview: 94 refs.
[XeF5]+/Metal and [XeF5]+/Non‐Metal Mixed‐Cation Salts of Hexafluoridoantimonate(V)
Authors: Mazej Zoran , Goreshnik Evgeny 
Published: February 2015

AbstractNew types of [XeF5]+ salts, i.e., NO2XeF5(SbF6)2 and XeF5[Cu(SbF6)3], are derived from reactions between XeF5SbF6 and NO2SbF6 or Cu(SbF6)2, respectively. The crystal structure of the former consists of [NO2]+ and [XeF5]+ cations and [SbF6]– anions. The main feature of the crystal structure of XeF5[Cu(SbF6)3] are rings of CuF6 octahedra that share apexes with SbF6 octahedra connected into an infinite tridimensional framework. This arrangement leads to the formation of cavities within which [XeF5]+ cations are located. Raman spectra of both [NO2]+/[XeF5]+ and [XeF5]+/Cu2+ mixed‐cation hexafluorido‐antimonates(V) are reported herein.
Iron‐Catalyzed Tandem Cyclization and Cross‐Coupling Reactions of Iodoalkanes and Aryl Grignard Reagents
Authors: Kim Jae Gon , Son Young Hoon , Seo Jin Won , Kang Eun Joo 
Published: February 2015

AbstractA range of arylmethyl‐substituted pyrrolidines and tetrahydrofurans were produced by FeCl2‐catalyzed tandem cyclization and cross‐coupling reactions of alkyl iodides and aryl Grignard reagents. The substituents on alkenes had a profound effect on the progress of the tandem reactions, with di‐ and tri‐substituted alkenes affording cyclized pyrrolidines. Several experimental results, such as cyclopropyl ring opening, the stereochemical outcome of the reaction with a secondary iodide substrate, and intermediate identification with 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO), support the conclusion that a radical process is involved in this catalytic system. Moreover, deuterium labeling experiments indicated that radical disproportionation could occur in the termination reactions of the cyclized alkyl radical species.
Diastereoselective Synthesis of 2,6‐Diaryltetrahydrothiopyran‐4‐ones by Phase‐Transfer Catalysis
Authors: Gendron Thibault , Kessedjian Hripsimée , Davioud‐Charvet Elisabeth , Lanfranchi Don Antoine 
Published: February 2015

AbstractTwo efficient phase‐transfer‐catalyzed protocols for the diastereoselective synthesis of cis and trans isomers of 2,6‐diaryltetrahydrothiopyran‐4‐ones (2,6‐DATHTPs) have been developed. In a study of the scope of the reactions, differently substituted 2,6‐DATHTPs were successfully accessed in high yields and diastereomeric excessses on both experimental and preparative scales.
(Diacetoxyiodo)benzene‐Mediated Oxygenation of Benzylic C(sp3)–H Bonds with N‐Hydroxyamides at Room Temperature
Authors: Qian Peng‐Cheng , Liu Yu , Song Ren‐Jie , Hu Ming , Yang Xu‐Heng , Xiang Jian‐Nan , Li Jin‐Heng 
Published: February 2015

AbstractA new, metal‐free method for the formation of C(sp3)–O bonds was established by PhI(OAc)2‐mediated oxygenation of benzylic C(sp3)–H bonds with N‐hydroxyamides at room temperature, in which the C(sp3)–H oxidation is activated by a polyflurophenylamide group.
CuII‐Promoted Aerobic Cascade Reactions of 2‐Alkynylanilines with Methyl Perfluoroalk‐2‐ynoates: En Route to 4‐Carbonyl‐2‐perfluoroalkylquinolines
Authors: Han Jing , Shen Yangyong , Sun Xuechun , Yao Qiuxia , Chen Jie , Deng Hongmei , Shao Min , Fan Bozhen , Zhang Hui , Cao Weiguo 
Published: February 2015

AbstractUsing air as the oxygen source, 4‐carbonyl‐2‐perfluoroalkylquinolines were prepared in good to excellent yields, from readily available 2‐alkynylanilines and methyl perfluoroalk‐2‐ynoates through a CuII‐promoted sequential process that omits the isolation of the enamine intermediates. The reaction tolerates several useful functionalities including ether, ester and chloro substituents.
Direct Organocatalytic Oxo‐Metathesis, a trans‐Selective Carbocation‐Catalyzed Olefination of Aldehydes
Authors: Veluru Ramesh Naidu  , Bah Juho , Franzén Johan 
Published: February 2015

AbstractA direct organocatalytic carbonyl/olefin oxo‐metathesis has been developed. The reaction is catalyzed by trityl tetrafluoroborate (TrBF4) and utilizes unactivated alkenes for the olefination of aromatic aldehydes to give trans β‐alkylstyrenes in yields of 44–85 % with only acetone as the byproduct. The pronounced Lewis acidity of the carbocation results in unusual reactivity that is proposed to catalyze a stepwise [2+2] cycloaddition to give an oxetane intermediate. Fragmentation of the latter in a formal retro [2+2] reaction gives the oxo‐metathesis product.