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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36条记录   Intramolecular Aza-Wittig Reaction: A New Efficient Tool for the Construction of Piperazine 2,5-Dione Derivatives [作者：MAJUMDAR K C; RAY KRISHANU; GANAI SINTU,期刊：SYNLETT, 页码：2122-2124 , 文章类型： Article，,卷期：2010年-14] A new efficient approach for the synthesis of unsymmetricaly substituted piperazine 2,5-dione derivatives is described by using intramolecular aza-Wittig reaction as the key step. The reaction conditions are very simple,... Rearrangement of Pyran Derivatives Obtained from Vinyl Malononitriles and Aldehydes via Vinylogous Aldol Reaction: A Novel Facile Method for the Synthesis of Dienamides [作者：BABU THELAGATHOTI HARI; PAWAR SUJEET; MURALIDHARAN D; PERUMAL PARAMASIVAN T,期刊：SYNLETT, 页码：2125-2129 , 文章类型： Article，,卷期：2010年-14] A novel one-pot approach to a variety dienamides from vinyl malononitriles and aldehydes via vinylogous aldol reaction was achieved by the electrolytic ring opening of the initially formed pyran derivatives under mild ba... First Enantioselective Total Synthesis of the Reported Structure of (R)-(+)-Orizaterpenyl Benzoate Using an Asymmetric Allylation of a Prochiral Ketone in a Domino Process [作者：TIETZE LUTZ F; BILLER SIMON; WOLFRAM THOMAS,期刊：SYNLETT, 页码：2130-2132 , 文章类型： Article，,卷期：2010年-14] An efficient synthesis of (R)-orizaterpenyl benzoate using a multicomponent domino allylation reaction of a prochiral ketone with allyltrimethyl silane and the enantiopure silyl ether of benzyl phenyl carbinol in the pre... A Practical Synthesis of 4-Amino-2-(Trifluoromethyl)nicotinic Acid [作者：LI BRYAN; BI F CHRISTOPHER; BUZON RICHARD A; KANG MING; OLIVER ROBERT M; SAGAL JOHN F; SAMP LACEY; WALKER DANIEL P; ZHANG ZHIJUN,期刊：SYNLETT, 页码：2133-2135 , 文章类型： Article，,卷期：2010年-14] A practical synthesis of 4-amino-2-(trifluoromethyl)nicotinic acid is described. 2-(Trifluoromethyl)pyridine was lithiated using lithium 2,2,6,6-tetramethylpiperidide (LTMP) in the presence of 1,3-dimethyl-2-imidazolidin... Protecting-Group-Free Route to Hydroxylated Pyrrolidine and Piperidine Derivatives through Cu(I)-Catalyzed Intramolecular Hydroamination of Alkenes [作者：OHMIYA HIROHISA; YOSHIDA MIKA; SAWAMURA MASAYA,期刊：SYNLETT, 页码：2136-2140 , 文章类型： Article，,卷期：2010年-14] An efficient approach to hydroxylated pyrrolidine and piperidine derivatives through the intramolecular hydroamination catalyzed by a Cu(I)-Xantphos system is described. The transformation allows for the short synthesis ... Mild and Catalytic Transesterification Reaction Using K2HPO4 for the Synthesis of Methyl Esters [作者：SHINADA TETSURO; HAMADA MAKOTO; MIYOSHI KOTA; HIGASHINO MASATO; UMEZAWA TAIKI; OHFUNE YASUFUMI,期刊：SYNLETT, 页码：2141-2145 , 文章类型： Article，,卷期：2010年-14] K2HPO4 is an efficient catalyst for the transesterification reaction to produce methyl esters. Various functional groups are compatible under the mild reaction conditions. Selective Fluorodesulfurization of Benzo- and Pyrido-oxazine Derivatives [作者：YIN BIN; INAGI SHINSUKE; FUCHIGAMI TOSHIO,期刊：SYNLETT, 页码：2146-2150 , 文章类型： Article，,卷期：2010年-14] Selective fluorodesulfurization of 3-aryl-2-phenylthio-2H-benzo[b][1,4] oxazine derivatives was successfully carried out using various N-halogenosuccinimides as oxidizing reagent in the presence of Et3N center dot 3HF to... Regioselective Gold-Catalyzed Allylative Ring Opening of 1,4-Epoxy-1,4-dihydronaphthalenes [作者：SAWAMA YOSHINARI; KAWAMOTO KOICHI; SATAKE HIROYUKI; KRAUSE NORBERT; KITA YASUYUKI,期刊：SYNLETT, 页码：2151-2155 , 文章类型： Article，,卷期：2010年-14] In the presence of a gold catalyst, the ring opening of 1,4-epoxy-1,4-dihydronaphthalenes with allyltrimethylsilane affords allylnaphthalenes in high yield. For unsymmetrical substrates, high regioselectivity is observed... Practical Synthesis of the C-1027 Aminosugar Moiety [作者：HIRAI KEIICHIRO; TAMURA YUKIO; SATO ITARU; HIRAMA MASAHIRO,期刊：SYNLETT, 页码：2156-2158 , 文章类型： Article，,卷期：2010年-14] A concise and reliable synthetic route to the aminosugar moiety of the C-1027 chromophore was developed. The aminosugar moiety was synthesized from L-glutamic acid in 11 steps and 13% overall yield. Catalyst-Free Process for the Synthesis of 5-Aryl-2-Oxazolidinones via Cycloaddition Reaction of Aziridines and Carbon Dioxide [作者：DOU XIAOYONG; HE LIANGNIAN; YANG ZHENZHEN; WANG JINGLUN,期刊：SYNLETT, 页码：2159-2163 , 文章类型： Article，,卷期：2010年-14] A simple approach for facile synthesis of 5-aryl-2-oxazolidinones in excellent regioselectivity from aziridines under compressed CO2 conditions was developed in the absence of any catalyst and organic solvent. The reacti... One-Pot Three-Component Solvent-Free Cyanoaroylation of Aldehydes Using Potassium Hexacyanoferrate(II) as an Environmentally Benign Cyanide Source [作者：LI ZHENG; TIAN GUOQIANG; MA YUANHONG,期刊：SYNLETT, 页码：2164-2168 , 文章类型： Article，,卷期：2010年-14] An efficient method for one-pot three-component solvent-free cyanoaroylation of aldehydes using potassium hexacyanoferrate(II) as an environmentally benign cyanide source and triethylamine as a catalyst has been describe... FeCl3-Promoted One-Step Synthesis of Spiro[4.5]decane Derivatives [作者：ZHENG DEPING; MA ZUODONG; GONG WANCHUN; XIE ZHIXIANG; LI YING,期刊：SYNLETT, 页码：2169-2173 , 文章类型： Article，,卷期：2010年-14] A FeCl3-promoted synthesis of spiro[4.5]decane derivatives has been developed from 2-(5,5-dimethoxypentyl)-1-substituted cyclopentanols with high diastereoselectivity. These interesting compounds are formed through a cas... Solvent-Free and Stereoselective Synthesis of C-Glycosides by Michael-Type Addition of Enamino Esters to 2-Nitro-D-glucal [作者：ZHANG TI; YU CHUYI; HUANG ZHITANG; JIA YUEMEI,期刊：SYNLETT, 页码：2174-2178 , 文章类型： Article，,卷期：2010年-14] Michael-type addition of enamino esters to 3,4,6-tri-O-benzyl-2-nitro-D-glucal under solvent-free conditions formed C-glycosides in excellent yields with high stereoselectivity. Reduction of the nitro group afforded the ... A Convenient Route for the Synthesis of Novel 2-Substituted [1,2,4]Triazolo[1,5-c]pyrimidine Derivatives [作者：LI CHAO; LI ZHIMING; WANG QUANRUI,期刊：SYNLETT, 页码：2179-2183 , 文章类型： Article，,卷期：2010年-14] Reactions of easily accessible chloropyrimidinyl hydrazones with bromine were investigated. Oxidative cyclization followed by concomitant bromination led to the formation of [1,2,4]triazolo[4,3-c]pyrimidines, which then ... Synthesis of the C7-C23 Fragment Related to Iriomoteolide-1a via B-Alkyl Suzuki-Miyaura Cross-Coupling and Indium-Mediated Aldehyde Allylation [作者：LIU YUANXIN; WANG JIAN; LI HUOMING; WU JINLONG; FENG GAOFENG; DAI WEIMIN,期刊：SYNLETT, 页码：2184-2188 , 文章类型： Article，,卷期：2010年-14] Synthesis of the C7-C23 fragment and its 18R, 19S-diastereomer of iriomoteolide-1a has been accomplished from the C7-C12 allyl bromide, the C13-C16 vinyl iodide, and the C17-C23 alkyl iodide fragments. These fragments we... Synthesis of TRIP and Analysis of Phosphate Salt Impurities [作者：KLUSSMANN MARTIN; RATJEN LARS; HOFFMANN SEBASTIAN; WAKCHAURE VIJAY; GODDARD RICHARD; LIST BENJAMIN,期刊：SYNLETT, 页码：2189-2192 , 文章类型： Article，,卷期：2010年-14] The chiral phosphoric acid TRIP, a useful Bronsted acid catalyst, easily becomes contaminated with metal impurities in the form of phosphate salts during synthesis. This significantly reduces the content of free acid in ...