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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   Metal- and Base-Free Three-Component Reaction of Ynones, Sodium Azide, and Alkyl Halides: Highly Regioselective Synthesis of 2,4,5-Trisubstituted 1,2,3-NH-Triazoles [作者：LI JIHUI; ZHANG YUANQING; WANG DONG; WANG WEN; GAO TINGTING; WANG LU; LI JITING; HUANG GUOSHENG; CHEN BAOHUA,期刊：SYNLETT, 页码：1617-1622 , 文章类型： Article，,卷期：2010年-11] A base- and metal-free three-component reaction of ynones, sodium azide, and alkyl halides is developed for the regioselective synthesis of 2,4,5-trisubstituted-1,2,3-triazoles. The method is general, convenient, environ... SmI2-Mediated Reductive Cross-Coupling Reactions of alpha-Cyclopropyl Nitrones [作者：BURCHAK OLGA N; MASSON GERALDINE; PY SANDRINE,期刊：SYNLETT, 页码：1623-1626 , 文章类型： Article，,卷期：2010年-11] Three new alpha-cyclopropyl nitrones have been synthesized as mechanistic probes for reductive cross-coupling reactions of nitrones. The alpha-cyclopropylcarbinyl radical intermediate formed by single electron transfer f... Titanium-Mediated Cyclopropanation on Diesters: Mechanistic Study on the Dramatic Effects of Selected Parameters [作者：JIDA MOUHAMAD; GAUCHER XAVIER; OLLIVIER JEAN,期刊：SYNLETT, 页码：1627-1630 , 文章类型： Article，,卷期：2010年-11] Competitive reactions of diisopropyloxy(eta(2)-alkene)titanium on N-allyl diesters derived from natural amino acids and performed under varying conditions (temperature, nature, and concentration of Grignard reagents) sho... Synthesis of a Racemic Nicotine-Lobeline Hybrid [作者：RANAIVONDRAMBOLA TSIRESY; HATTON WILFRIED; FELPIN FRANCOISXAVIER; EVAIN MICHEL; MATHEALLAINMAT MONIQUE; LEBRETON JACQUES,期刊：SYNLETT, 页码：1631-1634 , 文章类型： Article，,卷期：2010年-11] The first synthesis of a racemic nicotine-lobeline hybrid is described based on a diastereoselective allylation and an RCM reaction as key steps. This synthetic route paves the way to the preparation of original potentia... Triflic Acid Promoted Tandem Ring-Closure-Aryl-Migration of 2 '-Amino Chalcone Epoxide: A New Synthetic Route to Azaisoflavones [作者：PRAVEEN CHANDRASEKARAN; PARTHASARATHY KANNABIRAN; PERUMAL PARAMASIVAN T,期刊：SYNLETT, 页码：1635-1640 , 文章类型： Article，,卷期：2010年-11] An unprecedented TfOH-promoted tandem ring-closure-aryl-migration of 2'-amino chalcone epoxide leading to 3-aryl-4(1H)-quinolones (azaisoflavones) was achieved. The outcome of the reaction was confirmed by NMR analysis a... Efficient Suzuki and Stille Reactions for Regioselective Strategies of Incorporation of the 1,3-Oxazole Heterocycle: Mild Desulfonylation for the Synthesis of C-4 and C-5 Monosubstituted Oxazoles [作者：WILLIAMS DAVID R; FU LIANGFENG,期刊：SYNLETT, 页码：1641-1646 , 文章类型： Article，,卷期：2010年-11] Suzuki and Stille cross-coupling reactions are surveyed for site-selective C-4 and C-5 elaboration of 2-(phenylsulfonyl)-1,3-oxazole derivatives. Conditions for mild reductive desulfonylations provide for direct incorpor... Radical Alkylations of Alkyl Halides and Unactivated C-H Bonds Using Vinyl Triflates [作者：LEE JIN YOUNG; LIM KYOUNGCHAN; MENG XIANGJIAN; KIM SUNGGAK,期刊：SYNLETT, 页码：1647-1650 , 文章类型： Article，,卷期：2010年-11] Radical alkylations of activated alkyl iodides and bromides were achieved using vinyl triflates in the presence of hexadimethyltin, whereas those of unactivated C-H bonds using vinyl triflates proceeded cleanly under tin... Microwave-Assisted Demethylation of Methyl Aryl Ethers Using an Ionic Liquid [作者：PARK JIYEON; CHAE JUNGHYUN,期刊：SYNLETT, 页码：1651-1656 , 文章类型： Article，,卷期：2010年-11] An efficient demethylation of methyl aryl ethers using an ionic liquid, 1-n-butyl-3-methylimidazolium bromide ([bmim][Br]) has been developed. Methyl aryl ethers are successfully cleaved by the halide anion of [bmim][Br]... Synthesis of 2-Substituted Pyrimidines via Cross-Coupling Reaction of Pyrimidin-2-yl Sulfonates with Nucleophiles in Polyethylene Glycol 400 [作者：WANG XICUN; YANG GUOJUN; QUAN ZHENGJUN; JI PENGYAN; LIANG JUNLING; REN RONGGUO,期刊：SYNLETT, 页码：1657-1660 , 文章类型： Article，,卷期：2010年-11] A mild and rapid procedure to the synthesis of 2-substituted pyrimidines was developed via sequential functionalization of easily available Biginelli 3,4-dihydropyrimidine-2(1H)-ones via oxidation, esterification, follow... Chelating Hydroxyalkyl NHC as Efficient Chiral Ligands for Room-Temperature Copper-Catalyzed Asymmetric Allylic Alkylation [作者：JENNEQUIN THOMAS; WENCELDELORD JOANNA; RIX DIANE; DAUBIGNARD JULIEN; CREVISY CHRISTOPHE; MAUDUIT MARC,期刊：SYNLETT, 页码：1661-1665 , 文章类型： Article，,卷期：2010年-11] The application of chiral chelating hydroxy NHC in copper-catalyzed asymmetric allylic alkylation (Cu-AAA) involving various dialkylzincs and allylic phosphate substrates is reported here. From a library of 11 chiral che... Synthesis of Diethyl alpha-(o-Nitroaryl)phosphoglycines via Oxidative Nucleophilic Substitution of Hydrogen in Nitroarenes [作者：MAKOSZA MIECZYSLAW; SULIKOWSKI DANIEL,期刊：SYNLETT, 页码：1666-1668 , 文章类型： Article，,卷期：2010年-11] The carbanion of protected diethyl phosphoglycinate adds to nitroarenes in liquid ammonia in ortho position to the nitro group. Subsequent oxidation of the resulting adduct sigma(H) with potassium permanganate gave N-pro... A Facile Synthesis of Novel Pyrrolidine Dendrimers by Terminal Group Modification through 1,3-Dipolar Cycloaddition Reaction [作者：RAJAKUMAR PERUMAL; RAJA SEBASTIAN; THIRUNARAYANAN AYYAVU,期刊：SYNLETT, 页码：1669-1673 , 文章类型： Article，,卷期：2010年-11] A series of novel dendrimers with pyrrolidine as surface group has been achieved in high yields by terminal-group modification on chalcone dendrimers through the application of 1,3-dipolar cycloaddition reaction. In 1,3-... Efficient Synthesis of Phenanthridines Using Hendrickson Reagent Initiated Cascade Reaction under Mild Conditions [作者：XI JIE; DONG QINGLI; LIU GUANSAI; WANG SHAOZHONG; CHEN LIN; YAO ZHUJUN,期刊：SYNLETT, 页码：1674-1678 , 文章类型： Article，,卷期：2010年-11] A number of variously substituted phenanthridines have been synthesized using the newly developed methodology under mild conditions. The Hendrickson reagent initiated cascade annulation, which is composed of a mild conve... Synthesis and Structures of 1,10-Phenanthroline-Based Extended Triptycene Derivatives [作者：JIANG YI; CHEN CHUANFENG,期刊：SYNLETT, 页码：1679-1681 , 文章类型： Article，,卷期：2010年-11] A series of novel 1,10-phenanthroline-based extended triptycene derivatives were conveniently synthesized in good yields, and their structures were determined by H-1 NMR, C-13 NMR, MALDI-TOF MS spectra, and elemental ana... Reactions of Heterocyclic Ketene Aminals with 2-[3-Oxoisobenzofuran-1(3H)-ylidene]malononitrile: Synthesis of Novel Polyfunctionalized 1,4-Dihydropyridine-Fused 1,3-Diazaheterocycles [作者：XU WENYUAN; JIA YUEMEI; YANG JINGKUI; HUANG ZHITANG; YU CHUYI,期刊：SYNLETT, 页码：1682-1684 , 文章类型： Article，,卷期：2010年-11] An efficient method has been developed for the synthesis of a novel kind of polyfunctionalized 1,4-dihydropyridine-fused 1,3-diazaheterocycles via the reactions of heterocyclic ketene aminals (HKAs) with 2-[3-oxoisobenzo... Synthesis of Botryllamides and Lansiumamides via Ruthenium-Catalyzed Hydroamidation of Alkynes [作者：GOOSSEN LUKAS J; BLANCHOT MATHIEU; ARNDT MATTHIAS; SALIH KIFAH S M,期刊：SYNLETT, 页码：1685-1687 , 文章类型： Article，,卷期：2010年-11] Ruthenium-catalyzed hydroamidations of alkynes allow a concise synthetic entry to both E-and Z-configured enamide natural products. This was demonstrated by the synthesis of botryllamides C and E, lansiumamides A and B, ...