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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   Facile Synthesis of 2,3-Dihydrobenzofuran-3-ylacetic Acids by Novel Electrochemical Sequential Aryl Radical Cyclization-Carboxylation of 2-Allyloxybromobenzenes Using Methyl 4-tert-Butylbenzoate as an Electron-Transfer Mediator [作者：SENBOKU HISANORI; MICHINISHI JUNYA; HARA SHOJI,期刊：SYNLETT, 页码：1567-1572 , 文章类型： Article，,卷期：2011年-11] Facile synthesis of 2,3-dihydrobenzofuran-3-ylacetic acids and related analogues was successfully carried out by a novel electrochemical aryl radical generation and its 5-exo cyclization followed by a carboxylation seque... Facile Synthesis of Spiropyrans from Chromene Hemiacetal Esters and Bifunctional Nucleophiles [作者：WU YANCHAO; LI HUIJING; LIU LI; DEMOULIN NICOLAS; LIU ZHE; WANG DONG; CHEN YONGJUN,期刊：SYNLETT, 页码：1573-1578 , 文章类型： Article，,卷期：2011年-11] Facile synthesis of several new kinds of spiropyrans has been accomplished through the condensation of chromene hemiacetal esters with bifunctional nuclephiles, in which previously nonpractical amination and amidation pr... Dramatic Base-Oriented Chemoselective Tandem Wacker Cyclizations: Synthesis of Bisbenzannelated Spiroketals and 2-Substituted Chromans [作者：XIN ZHIJUN; ZHANG YUAN; TAO HUA; XUE JIJUN; LI YING,期刊：SYNLETT, 页码：1579-1584 , 文章类型： Article，,卷期：2011年-11] A Pd(II)/Cu(II)-catalyzed chemoselective tandem aerobic cyclization of phenolic olefins leads to [5,6]-bisbenzannelated spiroketals or 2-substituted chromans, wherein it was interestingly found that the presence or absen... Microwave-Accelerated Alkylation of Arenes/Heteroarenes with Benzylic Alcohols Using Antimony(III) Chloride as Catalyst: Synthesis of O-Heterocycles [作者：SHUKLA PRASHANT; CHOUDHARY MANOJ K; NAYAK SANDIP K,期刊：SYNLETT, 页码：1585-1591 , 文章类型： Article，,卷期：2011年-11] An efficient protocol for alkylation of electron-rich arenes/heteroarenes with benzylic alcohols under microwave irradiation using antimony(III) chloride as catalyst has been developed. The mild reaction conditions, high... Exo-Selective Asymmetric Inverse-Electron Demand Hetero-Diels-Alder Reaction Catalyzed by Cu(II)-Hydroxy Oxazoline Ligands [作者：BARBA ANDREA; BARROSO SANTIAGO; BLAY GONZALO; CARDONA LUZ; MELEGARI MARTINA; PEDRO JOSE R,期刊：SYNLETT, 页码：1592-1596 , 文章类型： Article，,卷期：2011年-11] Cu(II) complexes of hydroxy oxazolines derived from (+)-(S)-ketopinic acid catalyze the asymmetric hetero-Diels-Alder cycloaddition of enol ethers and beta,gamma-unsaturated alpha-keto esters. The reaction takes place wi... Zirconyl Chloride: An Efficient, Water-Tolerant, and Reusable Catalyst for the Synthesis of N-Methylamides [作者：TALUKDAR DHRUBAJYOTI; SAIKIA LAKHINATH; THAKUR ASHIM JYOTI,期刊：SYNLETT, 页码：1597-1601 , 文章类型： Article，,卷期：2011年-11] ZrOCl2 center dot 8H(2)O is a highly effective, water-tolerant, and reusable catalyst for the direct condensation of carboxylic acids and N,N'-dimethylurea under microwave irradiation to give the corresponding N-methylam... Total Synthesis of Gabosine H [作者：PRASAD KAVIRAYANI R; KUMAR S MOTHISH,期刊：SYNLETT, 页码：1602-1604 , 文章类型： Article，,卷期：2011年-11] Stereoselective total synthesis and assignment of the absolute configuration of the keto carba sugar gabosine H is presented. Pivotal reactions in the sequence include desymmetrization of the dimethylamide of tartaric ac... Total Syntheses of (+/-)-Vestitol and Bolusanthin III Using a Wittig Strategy [作者：LUNIWAL AMARJIT; ERHARDT PAUL W,期刊：SYNLETT, 页码：1605-1607 , 文章类型： Article，,卷期：2011年-11] An intramolecular Wittig olefination was utilized to produce the key isoflav-3-ene intermediate needed to prepare (+/-)-vestitol and bolusanthin III in ca. 30% and 20% respective yields after eight steps. Convertible Fluorous Linker Assisted Synthesis of Tetrasubstituted Furans [作者：KADAM ASHA; BUCKLEY STEPHANIE B; DINH TRINH; FITZGERALD RYAN; ZHANG WEI,期刊：SYNLETT, 页码：1608-1612 , 文章类型： Article，,卷期：2011年-11] Tetrasubstituted furans are prepared by a three-step synthesis including condensation of a fluorous benzaldehyde with an acetophenone followed by Michael-type [3+2] cycloaddition with an 1,3-diketone and Pd-catalyzed cou... Preparation and Reactivity of Polystyrene-Supported Iodosylbenzene: Convenient Recyclable Oxidizing Reagent and Catalyst [作者：CHEN JIANGMIN; ZENG XIAOMEI; MIDDLETON KYLE; YUSUBOV MEKHMAN S; ZHDANKIN VIKTOR V,期刊：SYNLETT, 页码：1613-1617 , 文章类型： Article，,卷期：2011年-11] A facile preparation of novel polystyrene-supported iodosylbenzene (PS-ISB, loading of IO up to 1.50 mmol/g) from iodopolystyrene is described. This resin has been successfully used for efficient oxidation of a diverse c... Further Developments of an Enantioselective Palladium-Catalyzed Polyene Cyclization: Surprising Solvent and Ligand Effects [作者：LUCCIOLA DANIELA; KEAY BRIAN A,期刊：SYNLETT, 页码：1618-1622 , 文章类型： Article，,卷期：2011年-11] The enantioselectivity of a Pd-catalyzed domino Heck-Mizoroki cyclization is dramatically enhanced by ligand and solvent choice. Electron-deficient ligands such as (R)-DIFLUORPHOS gave 5 in % ee values ranging from 94% e... Synthesis of New o-Quinone Methides from beta-Lapachone Analogues [作者：FERREIRA SABRINA BAPTISTA; GOMES GONZAGA DANIEL TADEU; DA SILVA FERNANDO DE CARVALHO; DE LIMA ARAUJO KATIA GOMES; FERREIRA VITOR FRANCISCO,期刊：SYNLETT, 页码：1623-1625 , 文章类型： Article，,卷期：2011年-11] In this work, we synthesized six new o-quinone methides from beta-lapachone analogues by treating beta-lapachone with acetone and a catalytic amount of iodine under thermal conditions and microwave irradiation. The yield... Copper-Catalyzed Arylation of Arylboronic Acids with Aldehydes [作者：ZHENG HANMEI; DING JINCHANG; CHEN JIUXI; LIU MIAOCHANG; GAO WENXIA; WU HUAYUE,期刊：SYNLETT, 页码：1626-1630 , 文章类型： Article，,卷期：2011年-11] A novel copper-catalyzed arylation of arylboronic acids with aldehydes under oxygen atmosphere was achieved in the presence of Cu(OTf)(2) and Xantphos, affording diaryl ketone derivatives in moderate to good yields. The ... Constrained Tetramic Acids, Homostreptopyrrolidine, and their Analogues Based on Unusual Intramolecular Wittig Olefination with Phosphorus Ylides [作者：DURIS ANDREJ; DAICH ADAM; BERKES DUSAN,期刊：SYNLETT, 页码：1631-1637 , 文章类型： Article，,卷期：2011年-11] The synthesis of bicyclic tetramic acids based on the 'nonclassical' intramolecular Wittig reaction catalyzed by the corresponding phosphonium salt was developed. We have found that such applications proceed smoothly wit... A Green Chemistry Method for the Regeneration of Carbonyl Compounds from Oximes by Using Cupric Chloride Dihydrate as a Recoverable Promoter for Hydrolysis (vol 23, pg 3139, 1993) [作者：QUAN NA; SHI XIAOXIN; NIE LIANGDENG; DONG JING; ZHU RUIHENG,期刊：SYNLETT, 页码：1642-1642 , 文章类型： Correction，,卷期：2011年-11]