bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Sequential Hydroformylation/Diels—Alder Processes: One‐Pot Synthesis of Polysubstituted Cyclohexenes, Cyclohexadienes, and Phthalates from Alkynes.
Authors: Fang Xianjie , Jackstell Ralf , Beller Matthias 
Published: December 2014

AbstractVarious alkynes are efficiently converted into the corresponding products in good yields and with excellent diastereoselectivity through palladium‐catalyzed hydroformylation followed by an Diels—Alder reaction of amides, aldehydes, and dienophiles.
ChemInform Abstract: Synthesis, Antibacterial and Antioxidant Properties of Novel Ethylenoindolophanes — A New Class of Cyclophanes.
Authors: Rajakumar Perumal , Venkatesan Nagarathinam , Mohanraj Gunasekaran 
Published: December 2014

AbstractAll the indole based ethylenophanes, synthesized via a McMurry coupling key step, show antibacterial and antioxidant activity similar to that of commercially available drugs.
ChemInform Abstract: Organocatalytic Synthesis of Optically Active β‐Branched α‐Amino Esters via Asymmetric Biomimetic Transamination.
Authors: Su Cunxiang , Xie Ying , Pan Hongjie , Liu Mao , Tian Hua , Shi Yian 
Published: December 2014

AbstractAn asymmetric biomimetic transamination process for β‐branched α‐keto esters (I) with a hydroquinine‐derived chiral base and 4‐cyano‐benzylamine as the nitrogen source is reported.
ChemInform Abstract: Enzyme‐Catalyzed Cascade Synthesis of Hydroxyiminoacetamides.
Authors: Knezevic Anamarija , Vinkovic Vladimir , Marakovic Nikola , Sinko Goran 
Published: December 2014

AbstractA synthesis of hydroxyiminoacetamide (IV), a key compound for the preparation of acetylcholinesterase reactivators, is developed.
ChemInform Abstract: Asymmetric Cascade Reaction to Allylic Sulfonamides from Allylic Alcohols by Palladium(II)/Base‐Catalyzed Rearrangement of Allylic Carbamates.
Authors: Bauer Johannes Moritz , Frey Wolfgang , Peters Rene 
Published: December 2014

AbstractA catalytic asymmetric method for the transformation of allylic alcohols into sulfonyl‐protected chiral allylic amines is presented.
ChemInform Abstract: Toluene as a Novel Carrier of Xanthates—Preparation, Use and Surrogate of S‐Tri‐ and Di‐Chloromethyl Xanthates.
Authors: Dumeunier Raphael , Huber Annika 
Published: December 2014

AbstractThe re‐aromatizing loss of toluene by radical initiated fragmentation of substrates (II) and (IV) renders possible the transformation of dithiocarbonyl group and a tri‐ or dichloromethyl group to olefins.
ChemInform Abstract: Ruthenium Catalyzed Regioselective Coupling of Terminal Alkynes, Amine and Carbon Dioxide Leading to anti‐Markovnikov Adducts.
Authors: Watile Rahul A. , Bhanage Bhalchandra M. 
Published: December 2014

AbstractThe reaction proceeds with excellent regioselectivity providing predominantly Z‐isomers of anti‐Markovnikov adducts.
ChemInform Abstract: Highly Diastereodivergent Synthesis of Tetrasubstituted Cyclohexanes Catalyzed by Modularly Designed Organocatalysts.
Authors: Rana Nirmal K. , Huang Huicai , Zhao John C.‐G. 
Published: December 2014

AbstractDepending on the temperature the reaction of nitroolefins with keto aldehydes of type (II) can be used to synthesize either 1,2‐syn or 1,2‐anti nitrocyclohexane products (III) and (IV).
ChemInform Abstract: Gold‐Catalyzed Diastereoselective Cycloisomerization of Alkylidene‐Cyclopropane‐Bearing 1,6‐Diynes.
Authors: Zheng Hongchao , Adduci Laura L. , Felix Ryan J. , Gagne Michel R. 
Published: December 2014

AbstractTreatment of 1,6‐diynes (syntheses described) according to A) proceeds diastereoselectively to produce the important 1,2‐trimethylenenorbornane core bearing an exocyclic alkene function.
ChemInform Abstract: Direct Synthesis of Pentafluoroethyl Copper from Pentafluoropropionate as an Economical C2F5 Source: Application to Pentafluoroethylation of Arylboronic Acids and Aryl Bromides.
Authors: Serizawa Hiroki , Aikawa Kohsuke , Mikami Koichi 
Published: December 2014

AbstractThe synthesis of pentafluoroethyl copper from a cuprate reagent and ethyl pentafluoropropionate is reported.
ChemInform Abstract: Copper‐Catalyzed Nucleophilic Trifluoromethylation of Benzylic Chlorides.
Authors: Miyake Yoshihiro , Ota Shin‐ichi , Shibata Masashi , Nakajima Kazunari , Nishibayashi Yoshiaki 
Published: December 2014

AbstractBenzylic chlorides bearing less electron‐donating groups, like tolyl and phenyl residues, fail to give the title reaction.
ChemInform Abstract: [3 + 3] Annulation of Allylic Phosphoryl‐Stabilized Carbanions/Phosphorus Ylides and Vinyl Azides: A Practice Strategy for Synthesis of Polyfunctionalized Anilines.
Authors: Liu Shen , Chen Wenteng , Luo Jing , Yu Yongping 
Published: December 2014

AbstractMichael addition of vinyl azides (II) and (V) with allylic phosphorous ylides or allylic‐stabilized‐stabilized carbanions followed by Wittig or Horner—Wadsworth—Emmons initiated [3 + 3] annulation afford highly functionalized anilines (III) and (VI) in good to excellent yields.
ChemInform Abstract: Synthesis of Tertiary Propargylamines via a Rationally Designed Multicomponent Reaction of Primary Amines, Formaldehyde, Arylboronic Acids and Alkynes.
Authors: Wang Jiayi , Shen Qiaoying , Li Pinzhen , Peng Yanqing , Song Gonghua 
Published: December 2014

AbstractThe title reaction represents a combination of the Petasis borono‐Mannich reaction of aldehydes, amines as well as boronic acids to afford secondary amines, which in turn are used in the so called A3‐coupling with aldehydes and alkynes.
ChemInform Abstract: Stereocontrol in Synthesis of Homoallylic Amines. Syn Selective Direct Allylation of Hydrazones with Allylboronic Acids.
Authors: Das Arindam , Alam Rauful , Eriksson Lars , Szabo Kalman J. 
Published: December 2014

AbstractUnless otherwise mentioned the products are isolated as single diastereomers.
ChemInform Abstract: General Silver‐Catalyzed Hydroazidation of Terminal Alkynes by Combining TMS‐N3 and H2O: Synthesis of Vinyl Azides.
Authors: Liu Zhenhua , Liao Peiqiu , Bi Xihe 
Published: December 2014

AbstractAn anti‐markovnikov hydroazidation of terminal alkynes is described.
ChemInform Abstract: Acceleration of the Dakin Reaction by Trifluoroacetic Acid.
Authors: Natu Arun D. , Burde Ameya S. , Limaye Rohan A. , Paradkar Madhusudan V. 
Published: December 2014

AbstractTrifluoroacetic acid is shown to accelerate the Dakin reaction and the use of SeO2 is essential for the reaction either as carbonyl activator or as a participator in the reaction by intermediately forming peroxyselenic acid.
ChemInform Abstract: Betti Base as an Efficient Ligand for Copper‐Catalyzed Ullmann Coupling of Phenol with Aryl Halides.
Authors: Yang Li , Yang Qichao , Shi Jianxin , Wang Yufang , Zhang Mingjie 
Published: December 2014

AbstractA new catalyst is presented for the synthesis of diaryl ethers from aromatic phenols and aryl halides.
ChemInform Abstract: Palladium‐Catalyzed Formylation of Aryl Halides with tert‐Butyl Isocyanide.
Authors: Jiang Xiao , Wang Jin‐Mei , Zhang Ying , Chen Zhong , Zhu Yong‐Ming , Ji Shun‐Jun 
Published: December 2014

AbstractThe title reaction provides a strategy for the synthesis of important aldehydes with moderate to excellent yields.
ChemInform Abstract: Nickel‐Catalyzed α‐Arylation of Ketones with Phenol Derivatives.
Authors: Takise Ryosuke , Muto Kei , Yamaguchi Junichiro , Itami Kenichiro 
Published: December 2014

AbstractThe nickel‐catalyzed α‐arylation of ketones with readily available phenol derivatives (esters and carbamates) provides access to useful α‐arylketones.
ChemInform Abstract: Metal‐Free Synthesis of 1,3,5‐Trisubstituted Benzenes by the Cyclotrimerization of Enaminones or Alkynes in Water.
Authors: Wan Jie‐Ping , Lin Yunfang , Hu Kaikai , Liu Yunyun 
Published: December 2014

AbstractCyclotrimerization reactions of both enaminones and electron deficient terminal alkynes are efficiently performed in water in the presence of lactic acid.
ChemInform Abstract: Metal‐Free, Efficient Oxyfluorination of Olefins for the Synthesis of α‐Fluoroketones.
Authors: Yang Qiang , Mao Liu‐Liang , Yang Bin , Yang Shang‐Dong 
Published: December 2014

AbstractInexpensive and easily available unsaturated olefins as starting compounds, wide functional group tolerance, and atom economic conditions are key features of this reaction.
ChemInform Abstract: PEG1000‐Based Dicationic Acidic Ionic Liquid as an Efficient Catalyst for Mannich‐Type Reaction in Water.
Authors: Ren Yi‐Ming , Shao Juan‐Juan , Wu Zhi‐Chuan , Yang Ren‐Chun , Zhang Ze , Tao Ting‐Xian 
Published: December 2014

AbstractThe reaction is performed in water, and the catalyst can be reused in six runs with only a slight loss of activity.
ChemInform Abstract: Palladium‐Catalyzed Formal Arylacylation of Allenes Employing Acid Chlorides and Arylboronic Acids.
Authors: Tatsumi Kenta , Fujihara Tetsuaki , Terao Jun , Tsuji Yasushi 
Published: December 2014

AbstractThe title reaction affords the corresponding α,β‐unsaturated ketones (IV), (VI), and (VIII) regio‐ and stereoselectively.
ChemInform Abstract: Synthesis and Characterization of Bisoxazolines‐ and Pybox‐Copper(II) Complexes and Their Application in the Coupling of α‐Carbonyls with Functionalized Amines.
Authors: Jia Wei‐Guo , Li Dan‐Dan , Dai Yuan‐Chen , Zhang Hui , Yan Li‐Qin , Sheng En‐Hong , Wei Yun , Mu Xiao‐Long , Huang Kuo‐Wei 
Published: December 2014

AbstractThe copper‐catalyzed amination of ketones (I) and esters (IV) is reported [30 examples].
ChemInform Abstract: Palladium‐Catalyzed Oxidative Carbonylative Coupling of Arylboronic Acids with Terminal Alkynes to Alkynones.
Authors: Natte Kishore , Chen Jianbin , Neumann Helfried , Beller Matthias , Wu Xiao‐Feng 
Published: December 2014

AbstractThe first examples of an oxidative carbonylative coupling of arylboronic acids with alkynes, a missing link in carbonylative coupling reactions, are given
ChemInform Abstract: Tertiary Amide‐Based Knoevenagel‐Type Reactions: A Direct, General, and Chemoselective Approach to Enaminones.
Authors: Huang Pei‐Qiang , Ou Wei , Xiao Kai‐Jiong , Wang Ai‐E 
Published: December 2014

AbstractBasis of the presented approach is the in situ activation of amide carbonyl with triflic anhydride and a subsequent reaction with carbanions generated in situ from carbonyl compounds.
ChemInform Abstract: Rhodium‐Catalyzed Asymmetric Arylation of β,γ‐Unsaturated α‐Ketoamides for the Construction of Nonracemic γ,γ‐Diarylcarbonyl Compounds.
Authors: Wang Juanjuan , Wang Min , Cao Peng , Jiang Liyin , Chen Guihua , Liao Jian 
Published: December 2014

AbstractA simple, new, chiral sulfinylphosphine ligand is developed, which promotes excellent 1,4‐selectivities and enantioselectivities in the rhodium‐catalyzed conjugate addition of arylboronic acids to β,γ‐unsaturated α‐ketoamides.
ChemInform Abstract: Rhodium(III)‐Catalyzed Cross‐Coupling of Alkenylboronic Acids and N‐Pivaloyloxylamides.
Authors: Feng Chao , Loh Teck‐Peng 
Published: December 2014

AbstractA novel and effective method for enamide synthesis using Rh(III)‐catalyzed umpolung amidation between N‐pivaloyloxyl amides and alkenylboronic acids is presented.
ChemInform Abstract: Green Synthesis of Benzamides in Solvent‐ and Activation‐Free Conditions.
Authors: Alalla Affef , Merabet‐Khelassi Mounia , Aribi‐Zouioueche Louisa , Riant Olivier 
Published: December 2014

AbstractAn improved method for the synthesis of acetamides with isopropenyl acetate is also shown.
ChemInform Abstract: Efficient Palladium‐Catalyzed Double Carbonylation of o‐Dibromobenzenes: Synthesis of Thalidomide.
Authors: Chen Jianbin , Natte Kishore , Spannenberg Anke , Neumann Helfried , Beller Matthias , Wu Xiao‐Feng 
Published: December 2014

AbstractA convenient procedure for the double carbonylation of o‐dibromobenzenes (I) in the presence of various 2‐aminopyridines and naturally occurring amines, e.g. (IIf), providing N‐substituted phthalimides such as (IV) is reported.
ChemInform Abstract: Synthesis of N‐Styrenyl Amidines from α,β‐Unsaturated Nitrones and Isocyanates Through CO2 Elimination and Styrenyl Migration.
Authors: Mo Dong‐Liang , Pecak Wiktoria H. , Zhao Meng , Wink Donald J. , Anderson Laura L. 
Published: December 2014

AbstractA new method for the synthesis of N‐styrenyl amidines is described.
ChemInform Abstract: Copper Iodide Nanoparticles‐Catalyzed Cyanation of Aryl Halides Using Non‐toxic K4[Fe(CN)6] in the Presence of 1,2‐Bis(5‐tetrazolyl)benzene as an Efficient Ligand.
Authors: Maham Mehdi , Bahari Siavash 
Published: December 2014

AbstractThe significant advantages of this protocol are high yields, elimination of dangerous and toxic reagents and a simple work‐up procedure.
ChemInform Abstract: Palladium‐Catalyzed/Norbornene‐Mediated ortho‐Amination/N‐Tosylhydrazone Insertion Reaction: An Approach to the Synthesis of ortho‐Aminated Vinylarenes.
Authors: Zhou Ping‐Xin , Ye Yu‐Ying , Ma Jun‐Wei , Zheng Lan , Tang Qian , Qiu Yi‐Feng , Song Bo , Qiu Zi‐Hang , Xu Peng‐Fei , Liang Yong‐Min 
Published: December 2014

AbstractAryl iodides, N‐benzoyloxyamines and N‐tosylhydrazones are used for the preparation of various title compounds.
ChemInform Abstract: Palladium Catalyzed Intramolecular Acylcyanation of Alkenes Using α‐Iminonitriles.
Authors: Rondla Naveen R. , Ogilvie Jodi M. , Pan Zhongda , Douglas Christopher J. 
Published: December 2014

AbstractThe title reaction affords functionalized indanones (II) in moderate to high yields and tolerates substitution at various positions on the aromatic ring including electron donating and electron withdrawing groups.
ChemInform Abstract: Synthesis of 1,4‐Enamino Ketones by [3,3]‐Rearrangements of Dialkenylhydroxylamines.
Authors: Pecak Wiktoria H. , Son Jongwoo , Burnstine Amy J. , Anderson Laura L. 
Published: December 2014

AbstractA new method for the synthesis of 1,4‐enamino ketones through rearrangement of dialkenylhydroxylamines generated in situ by addition of N‐alkenylnitrones to allenes is described.
ChemInform Abstract: Rhodium(I)‐Catalyzed Cycloisomerization of Benzylallene‐Alkynes Through C—H Activation.
Authors: Kawaguchi Yasuaki , Yasuda Shigeo , Kaneko Akira , Oura Yuki , Mukai Chisato 
Published: December 2014

AbstractA novel Rh‐catalyzed cycloisomerization of a variety of benzylallene‐alkyne substrates giving tricyclic products in moderate to good yields is presented.
ChemInform Abstract: Asymmetric Synthesis of γ‐Lactones Through Reaction of Sulfoxonium Ylides, Aldehydes, and Ketenes.
Authors: Peraino Nicholas J. , Ho Han‐Jen , Mondal Mukulesh , Kerrigan Nessan J. 
Published: December 2014

AbstractThe synthesis of enantioenriched γ‐lactones (IV) starting from chiral tetrafluoroborate (I) is studied.
ChemInform Abstract: Palladium‐Catalyzed Oxidative Difunctionalization of Alkenes with α‐Carbonyl Alkyl Bromides Initiated Through a Heck‐Type Insertion: A Route to Indolin‐2‐ones.
Authors: Fan Jian‐Hong , Wei Wen‐Ting , Zhou Ming‐Bo , Song Ren‐Jie , Li Jin‐Heng 
Published: December 2014

AbstractA new palladium‐catalyzed oxidative difunctionalization reaction of N‐arylalkenes with primary, secondary, and tertiary α‐carbonyl alkyl bromides affording indolinones is presented.
ChemInform Abstract: NIS‐Mediated Regioselective Amidation of Indole with Quinazolinone and Pyrimidone.
Authors: Ghosh Suman Kr , Nagarajan Rajagopal 
Published: December 2014

AbstractA direct regioselective C2 amidation of pyrroles and indoles with pyrimidone and quinazolinone derivatives is developed.
ChemInform Abstract: Chiral Phosphoramide‐Catalyzed Enantioselective Synthesis of 2,3′‐Diindolylarylmethanes from Indol‐2‐yl Carbinols and Indoles.
Authors: Qi Shuai , Liu Chao‐You , Ding Jin‐Ying , Han Fu‐She 
Published: December 2014

AbstractThe first asymmetric addition of indol carbinols (I) with indol derivatives (II) and (IV) catalyzed by a BINOL‐derived phosphoramide affords title compounds (III) and (V) in high yields as well as high enantioselectivities.
ChemInform Abstract: Flexible and Practical Synthesis of 3‐Oxyindoles Through Gold‐Catalyzed Intermolecular Oxidation of O‐Ethynylanilines.
Authors: Shu Chao , Li Long , Xiao Xin‐Yu , Yu Yong‐Fei , Ping Yi‐Fan , Zhou Jin‐Mei , Ye Long‐Wu 
Published: December 2014

AbstractThe reaction does not need to exclude moisture or air (“open flask”).
ChemInform Abstract: Phosphine‐Catalyzed Asymmetric [4 + 1] Annulation of Activated α,β‐Unsaturated Ketones with Morita—Baylis—Hillman Carbonates: Enantioselective Synthesis of Spirooxindoles Containing Two Adjacent Quaternary Stereocenters.
Authors: Hu Fang‐Le , Wei Yin , Shi Min 
Published: December 2014

AbstractThe title reaction is promoted by a bifunctional thiourea‐phosphine catalyst derived from an axially chiral binaphthyl scaffold affording spirooxindoles (III) with high enantioselectivities but only moderate diastereoselectivities.
ChemInform Abstract: Palladium Nanomaterials in Catalytic Intramolecular C—H Amination Reactions.
Authors: Chng Leng Leng , Yang Jun , Wei Yifeng , Ying Jackie Y. 
Published: December 2014

AbstractPalladium nanoparticles on carbon support are prepared and successfully used as catalyst for the conversion of 2‐acetaminobiphenyls (I) to carbazoles (II) (16 examples).
ChemInform Abstract: Thionium‐Based One‐Pot Construction of Homo‐/Heterodimeric Pyrroloindoline from Tryptamine.
Authors: Tayu Masanori , Higuchi Kazuhiro , Ishizaki Takako , Kawasaki Tomomi 
Published: December 2014

AbstractA one‐pot dimerization of two tryptamine derivatives is developed to yield homo‐ as well as heterodimeric mixtures of racemic (IV) and meso (V) products.
ChemInform Abstract: Ketone Synthesized Cobaloxime/Organocobaloxime Catalysts for Cyclic Carbonate Synthesis from CO2 and Epoxides: Characterization and Electrochemistry.
Authors: Kilic Ahmet , Kilic Mehmet Veysi , Ulusoy Mahmut , Durgun Mustafa , Aytar Emine , Dagdevren Metin , Yilmaz Ismail 
Published: December 2014

AbstractA new dioxime ligand is prepared and used for the synthesis of a series of mono‐ and trinuclear cobaloxime/organocobaloxime complexes (10 examples; detailed physical and physico‐chemical data).
ChemInform Abstract: Bi(OTf)3‐Catalyzed Intramolecular Amination of Triazenylaryl Allylic Alcohols: A Stereoselective, High‐Yield Synthesis of (E)‐3‐Alkenyl 2H‐Indazoles.
Authors: Yang Weijun , Yang Zhigen , Xu Lijun , Zhang Lili , Xu Xin , Miao Maozhong , Ren Hongjun 
Published: December 2014

AbstractAmong six catalysts tested for the intramolecular amination of (I) to yield (II), Bi(OTf)3 is the most effective.
ChemInform Abstract: Facile One‐Pot Synthesis of 1,3,5‐Trisubstituted Pyrazoles from α,β‐Enones.
Authors: Yu Jin , Kim Ko Hoon , Moon Hye Ran , Kim Jae Nyoung 
Published: December 2014

AbstractThe title compounds (III) are obtained by efficient one‐pot synthesis from α,β‐enones and arylhydrazine hydrochlorides.
ChemInform Abstract: Synthesis of 2,3‐Dihydro‐1H‐indazoles by Rh(III)‐Catalyzed C—H Cleavage of Arylhydrazines.
Authors: Yao Jinzhong , Feng Ruokun , Lin Cong , Liu Zhanxiang , Zhang Yuhong 
Published: December 2014

AbstractA series of 2,3‐dihydro‐1H‐indazoles is prepared via a Rh‐catalyzed activation of arylhydrazines and olefin addition.
ChemInform Abstract: One‐Pot Multi‐Component Synthesis of Mono‐ and Bis‐indolylimidazole Derivatives Using Zn2+ @KSF and Their Antibacterial Activity.
Authors: Mahmoodi Nosrat O. , Nikokar Iraj , Farhadi Marzieh , Ghavidast Atefeh 
Published: December 2014

AbstractSome of the title compounds (IV) and (VI) show promising antibacterial activities.
ChemInform Abstract: Palladium‐Catalyzed α‐Arylation of Sultams with Aryl and Heteroaryl Iodides.
Authors: Rene Olivier , Fauber Benjamin P. , Malhotra Sushant , Yajima Herbert 
Published: December 2014

AbstractAn operationally simple one‐step process for Pd(0)‐catalyzed α‐arylation of 1,3‐propane sultames using a zinc‐base is reported.
ChemInform Abstract: Direct Synthesis of 4‐Fluoroisoxazoles Through Gold‐Catalyzed Cascade Cyclization—Fluorination of 2‐Alkynone O‐Methyl Oximes.
Authors: Jeong Yunkyung , Kim Bom‐I , Lee Jae Kyun , Ryu Jae‐Sang 
Published: December 2014

AbstractThe optimized conditions are successfully applied to the preparation of various isoxazole structures which represent an important heterocyclic scaffold.
ChemInform Abstract: Palladium‐Catalyzed Microwave‐Assisted Direct Arylation of Imidazo[2,1‐b]thiazoles with Aryl Bromides: Synthesis and Mechanistic Study.
Authors: Zhu Yi‐Shuo , Shi Benyi , Fang Ran , Wang Xiaoxuan , Jing Huanwang 
Published: December 2014

AbstractThe direct regioselective C—H arylation of various imidazo[2,1‐b]thiazole derivatives such as (I), (IV), and (VI) with a range of aryl bromides (II) is described.
ChemInform Abstract: Synthesis and Insecticidal Evaluation of Novel Phthalic Diamides Containing 1,2,3‐Triazoles via Click Reaction.
Authors: Chen Yinbo , Xiao Youxin , Shao Xusheng , Xu Xiaoyong , Li Zhong 
Published: December 2014

AbstractThe bioassays show that most of the new compounds (III), (V) exhibit favorable activity against army worm (Mythimna separata).
ChemInform Abstract: Entry to Highly Hindered Chiral β‐Amino Triazoles Bearing a gem‐Diaryl Group by Azide‐Alkyne Click Chemistry.
Authors: Sadu Venkata Subbaiah , Roy Harendra Nath , Arigala Pitchaiah , Hwang In‐Taek , Lee Kee‐In 
Published: December 2014

AbstractHighly hindered β‐amino 1,2,3‐triazole derivatives bearing a gem‐diaryl group are obtained by copper (I)‐catalyzed Huisgen cycloaddition of terminal alkynes with unmasked azidoamines derived from amino acids.
ChemInform Abstract: 1,2,3‐Triazoles from Carbonyl Azides and Alkynes: Filling the Gap.
Authors: Haldon Estela , Alvarez Eleuterio , Nicasio M. Carmen , Perez Pedro J. 
Published: December 2014

AbstractThe [3 + 2] cycloaddition of electron deficient N‐carbamoyl azides (II) and (IV) with alkynes (I) is realized for the first time using a copper‐based catalyst system.
ChemInform Abstract: 3‐Halotetrahydropyran‐4‐one Derivatives from Homopropargyl Acetal.
Authors: Aaseng Jon Erik , Iqbal Naseem , Tungen Joern Eivind , Sperger Christian A. , Fiksdahl Anne 
Published: December 2014

AbstractA gold(I)‐catalyzed regioselective method for the preparation of 3‐halo‐tetrahydropyranone derivatives from homopropargyl acetal is reported.
ChemInform Abstract: O‐Benzenedisulfonimide as a Recyclable Homogeneous Organocatalyst for an Efficient and Facile Synthesis of 4‐Amidotetrahydropyran Derivatives Through Prins—Ritter Reaction.
Authors: Subba Reddy B. V. , Ghanty Supriya 
Published: December 2014

AbstractA highly diastereoselective synthesis of the title compounds is achieved using a o‐benzenedisulfonimide as catalyst under mild conditions.
ChemInform Abstract: A Copper(II) Perchlorate‐Promoted Tandem Reaction of Internal Alkynol and Salicyl N‐Tosylhydrazone: Direct Access to Isochromeno[3,4‐b]chromene.
Authors: Siyang Hai Xiao , Wu Xu Rui , Ji Xiao Yue , Wu Xin Yan , Liu Pei Nian 
Published: December 2014

AbstractThe presented tandem reaction involves cycloisomerization, formal [4 + 2] cycloaddition and an elimination process.
ChemInform Abstract: FeCl3‐Catalyzed Tandem Prins and Friedel—Crafts Cyclization: A Highly Diastereoselective Route to Polycyclic Ring Structures.
Authors: Ghosh Arun K. , Keyes Chad , Veitschegger Anne M. 
Published: December 2014

AbstractAn efficient procedure is elaborated for the preparation of functionalized tetraline derivatives such as (III), (V), and (VII) from trans‐ or cis‐alkenols.
ChemInform Abstract: Three Component Solvent‐Free Synthesis of Chroman‐2,4‐dione‐based Heterocyclic Ketene Aminal (HKA) Derivatives by “GAP” Chemistry.
Authors: Yu Fu‐Chao , Hao Xiao‐Pan , Jiang Xiu‐Yang , Yan Sheng‐Jiao , Lin Jun 
Published: December 2014

AbstractThe title compounds (IV), (VI), (VIII), (X) are efficiently and regioselectively obtained by cascade reaction of ketene aminals with triethoxymethane (II), and 4‐hydroxy coumarin derivatives (III) without any catalyst and solvent.