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文章名     作者     期刊名     摘要     卷     期         如果没有找到您所需要的文献，请点击 ——此处申请     共31条记录   Acid-Catalyzed Ring-Opening Isomerizations of Cyclopropenes [作者：PHUN LIEN H; APONTEGUZMAN JOEL; FRANCE STEFAN,期刊：SYNLETT, 页码：2723-2728 , 文章类型： Article，,卷期：2012年-19] Acid-catalyzed cyclopropene cycloisomerizations are discussed as a means to generate ring systems. Herein, the recent results obtained in our group are contrasted with previous examples in the literature. Particular emph... Development of a Nonenzymatic Kinetic Resolution of alpha-Allenic Alcohols [作者：WANG YAN; HOEN ROB; HONG RAN,期刊：SYNLETT, 页码：2729-2734 , 文章类型： Article，,卷期：2012年-19] This personal viewpoint lays out the development of a silver-catalyzed kinetic resolution of alpha-allenic alcohols inspired by the biomimetic synthesis of natural products. The corresponding selectivity factor (s) indic... Domino Twofold Heck/6 pi-Electrocyclization Reactions of 1,2-Dihaloalkenes [作者：HUSSAIN MUNAWAR; TRAN VAN SUNG; LANGER PETER,期刊：SYNLETT, 页码：2735-2744 , 文章类型： Article，,卷期：2012年-19] Domino twofold Heck/6 pi-electrocyclization reactions of 1,2-dihaloalkenes allow for a convenient synthesis of benzene derivatives. In recent years, this strategy has been applied to various 1,2-dihalogenated carbocyclic... C-H Bond Functionalization & Synthesis in the 21st Century: A Brief History and Prospectus [作者：WHITE M CHRISTINA,期刊：SYNLETT, 页码：2746-2748 , 文章类型： Article，,卷期：2012年-19] Among the frontier challenges facing synthetic chemistry in the 21st century are the interconnected goals of increasing control of chemical reactivity and synthesizing complex molecules with higher levels of efficiency. ... Palladium-Catalyzed Oxidative Arylalkylation of Unactivated Alkenes: Dual C-H Bond Cleavage of Anilines and Acetonitrile [作者：ZHANG HAO; CHEN PINHONG; LIU GUOSHENG,期刊：SYNLETT, 页码：2749-2752 , 文章类型： Article，,卷期：2012年-19] A palladium-catalyzed oxidative arylalkylation of unactivated alkenes involving dual C-H bond cleavage of arene and acetonitrile was developed. This reaction was promoted by pyridine as a ligand, and the ratio of palladi... Stereoselective Intramolecular Carbene C-H Insertion Catalyzed by Rhodium(III) Porphyrin Complexes [作者：LO VANESSA KARYAN; THU HUNGYAT; CHAN YUMAN; LAM TSZLUNG; YU WINGYIU; CHE CHIMING,期刊：SYNLETT, 页码：2753-2757 , 文章类型： Article，,卷期：2012年-19] Rhodium(III) porphyrin complexes [Rh(Por)Me] are catalytically active towards stereoselective intramolecular carbene C-H insertions of alpha-diazoacetamides to give cis-beta-lactams or trans-gamma-lactams in yields up to... Silver-Catalyzed Direct Addition of Terminal Alkynes to Simple Cyclic Ketones in Water [作者：JIA ZHENHUA; LI XINGSHU; CHAN ALBERT S C; LI CHAOJUN,期刊：SYNLETT, 页码：2758-2762 , 文章类型： Article，,卷期：2012年-19] The first catalytic addition of terminal alkynes to simple cyclic ketones in water catalyzed by silver was developed. Cyclic ketones were reacted with terminal alkynes efficiently in water to give the corresponding propa... Ruthenium-Catalyzed Direct ortho-Alkynylation of Arenes with Chelation Assistance [作者：ANO YUSUKE; TOBISU MAMORU; CHATANI NAOTO,期刊：SYNLETT, 页码：2763-2767 , 文章类型： Article，,卷期：2012年-19] The ruthenium-catalyzed direct alkynylation of arenes with the chelation assistance of nitrogen-containing heterocycles including pyridine, pyrimidine, pyrazole, and imidazole are described. The alkynylation is successfu... Cafestol to Tricalysiolide B and Oxidized Analogues: Biosynthetic and Derivatization Studies Using Non-heme Iron Catalyst Fe(PDP) [作者：BIGI MARINUS A; LIU PENG; ZOU LUFENG; HOUK K N; WHITE M CHRISTINA,期刊：SYNLETT, 页码：2768-2772 , 文章类型： Article，,卷期：2012年-19] The tricalysiolides are a recently isolated class of diterpene natural products featuring the carbon backbone of the wellknown coffee extract, cafestol. Herein we validate the use of our non-heme iron complex, Fe(PDP), a... A Mild, Room-Temperature Protection of Ketones and Aldehydes as 1,3-Dioxolanes under Basic Conditions [作者：HASSNER ALFRED; BANDI CHENNAKESAVA REDDY; PANCHGALLE SHARAD,期刊：SYNLETT, 页码：2773-2776 , 文章类型： Article，,卷期：2012年-19] Protection of ketones or aldehydes as 1,3-dioxolane derivatives proceeds within minutes at room temperature in the presence of N-hydroxybenzenesulfonamide, its O-benzyl derivative, or the tosyl analogue, in the absence o... Bis(phosphinite) with C-2-Symmetric Axis; Effects on the Ruthenium(II)-Catalyzed Asymmetric Transfer Hydrogenation of Acetophenone Derivatives [作者：AYDEMIR MURAT; DURAP FEYYAZ; KAYAN CEZMI; BAYSAL AKIN; TURGUT YILMAZ,期刊：SYNLETT, 页码：2777-2784 , 文章类型： Article，,卷期：2012年-19] Chiral ruthenium catalyst systems generated in situ from [Ru(eta(6)-p-cymene)(mu-Cl)Cl](2) complex and chiral C-2-symmetric bis(phosphinite) ligands based on amino alcohol derivatives were employed in the asymmetric tran... Base-Promoted Michael Reaction Concomitant with Alkylation of Cyclic-1,3-diones, an Efficient Approach to 2-Substituted Vinylogous Esters [作者：DE SUBHADIP; KINTHADA LAKSHMANA K; BISAI ALAKESH,期刊：SYNLETT, 页码：2785-2788 , 文章类型： Article，,卷期：2012年-19] Vinylogous esters can be synthesized by a base-promoted Michael reaction concomitant with alkylation of the cyclic 1,3-dione substrate. The methodology provides a wide range of 2-substituted vinylogous esters in good to ... Significantly Fast Synthesis of S-Glycosyl N-Substituted Dithiocarbamate and S-Glycosyl S '-Substituted Trithiocarbonate Derivatives under Solvent-Free Conditions [作者：JANA MANAS; MISRA ANUP KUMAR,期刊：SYNLETT, 页码：2789-2794 , 文章类型： Article，,卷期：2012年-19] A series of S-glycosyl N-substituted dithiocarbamate and S-glycosyl S'-substituted trithiocarbonate derivatives have been synthesized under solvent-free conditions. Three-component reaction of glycosyl bromides with carb... Ultrasound-Promoted Regioselective Synthesis of 1-Aryl-5-amino-1H-tetrazoles [作者：HABIBI DAVOOD; NASROLLAHZADEH MAHMOUD; SAHEBEKHTIARI HESAM; SAJADI S MOHAMMAD,期刊：SYNLETT, 页码：2795-2798 , 文章类型： Article，,卷期：2012年-19] A new method for the regioselective synthesis of 1-aryl-5-amino-1H-tetrazoles has been developed by the reaction of arylcyanamides with sodium azide using ZnCl2 under ultrasound irradiation in excellent yields. Gold-Catalyzed Intermolecular Carboalkoxylation of Alkenes [作者：DONG WENMIN; ZHANG MORAN; XIAO FENFEN; WANG YUNXIA; LIU WU; HU XIANGDONG; YUAN QIANG; ZHANG SHAOFEI,期刊：SYNLETT, 页码：2799-2802 , 文章类型： Article，,卷期：2012年-19] A gold-catalyzed intermolecular carboalkoxylation of alkenes has been developed. Readily available and inexpensive dimethyl acetals have been employed as a facile reagent to achieve the carboalkoxylation of alkenes. Chemical Photocatalysis with 1-(N,N-Dimethylamino)pyrene [作者：PENNER ALEXANDER; BAETZNER EFFI; WAGENKNECHT HANSACHIM,期刊：SYNLETT, 页码：2803-2807 , 文章类型： Article，,卷期：2012年-19] 1-(N,N-Dimethylamino)pyrene was applied as chemical photocatalyst for two different organic reactions: Both the photocatalytically driven nucleophilic addition of methanol to 1,1-diphenylethylene and the photocatalytic d...