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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66条记录   Synthesis of Vinyl Sulfides by Copper-Catalyzed Decarboxylative C-S Cross-Coupling [作者：RANJIT SADANANDA; DUAN ZHONGYU; ZHANG PENGFEI; LIU XIAOGANG,期刊：Organic Letters, 页码：4134-4136 , 文章类型： Article，,卷期：2010年12-18] A novel method for the synthesis of vinyl sulfides by the decarboxylative cross-coupling of arylpropiolic acids with thiols using copper(I) salts as catalysts has been developed. In the presence of Cul and Cs2CO3, a vari... Aryl(sulfonyl)amino Group: A Convenient and Stable Yet Activated Modification of Amino Group for Its Intramolecular Displacement [作者：KATO YUZO; YEN DINH HOANG; FUKUDOME YASUHIRO; HATA TAKESHI; URABE HIROKAZU,期刊：Organic Letters, 页码：4137-4139 , 文章类型： Article，,卷期：2010年12-18] Aryl(sulfonyl)amino groups, readily derived from sulfonyl- or arylamines by standard methods as well as the recently introduced methods of sulfonylation and arylation, proved to be good leaving groups in intramolecular s... Dynamic Ligand Exchange in Reactions of Samarium Diiodide [作者：SADASIVAM DHANDAPANI V; TEPROVICH JOSEPH A JR; PROCTER DAVID J; FLOWERS ROBERT A,期刊：Organic Letters, 页码：4140-4143 , 文章类型： Article，,卷期：2010年12-18] Mechanistic studies show the importance of iodide displacement by additives that accelerate reactions of samarium diiodide. The key feature important for acceleration of reaction rate is the use of proton donors and othe... Synthesis of 3-Oxa- and 3-Azabicyclo[4.1.0]heptanes by Gold-Catalyzed Cycloisomerization of Cyclopropenes [作者：MIEGE FREDERIC; MEYER CHRISTOPHE; COSSY JANINE,期刊：Organic Letters, 页码：4144-4147 , 文章类型： Article，,卷期：2010年12-18] Allyl 3,3-dimethylcyclopropenylcarbinyl ethers or sulfonamides undergo gold-catalyzed cycloisomerization leading to 5-isopropylidene-3-oxa- and 3-azabicyclo[4.1.0]heptanes in excellent yields and with high diastereoselec... meso-Tris(oligo-2,5-thienylene)-Substituted Subporphyrins [作者：HAYASHI SHINYA; INOKUMA YASUHIDE; OSUKA ATSUHIRO,期刊：Organic Letters, 页码：4148-4151 , 文章类型： Article，,卷期：2010年12-18] meso-Tris(oligo-2,5-thienylene)-substituted subporphyrins exhibit remarkably red-shifted and intensified absorption bands with increasing number of thienyl subunits. A dimeric subporphyrin obtained from homocoupling of a... Enantioselective Synthesis of Cyclic Sulfamidates by Using Chiral Rhodium-Catalyzed Asymmetric Transfer Hydrogenation [作者：KANG SOYEONG; HAN JUAE; LEE EUN SIL; CHOI EUN BOK; LEE HYEONKYU,期刊：Organic Letters, 页码：4184-4187 , 文章类型： Article，,卷期：2010年12-18] Asymmetric transfer hydrogenation (ATH) of cyclic sulfamidate imines 4 and 9, using a HCO2H/Et3N mixture as the hydrogen source and well-defined chiral Rh catalysts (S,S)- or (R,R)-2, Cp*RhCl(TsDPEN), effectively produce... Alsmaphorazines A and B, Novel Indole Alkaloids from Alstonia pneumatophora [作者：KOYAMA KOICHIRO; HIRASAWA YUSUKE; NUGROHO ALFARIUS EKO; HOSOYA TAKAHIRO; HOE TEH CHIN; CHAN KITLAM; MORITA HIROSHI,期刊：Organic Letters, 页码：4188-4191 , 文章类型： Article，,卷期：2010年12-18] Two novel indole alkaloids, alsmaphorazines A and B, were isolated from the leaves of Alstonia pneumatophora (Apocynaceae), and their structures were determined on the basis of the 2D NMR and MS spectral analysis. These ... New Cyclization of 4-Oxahepta-1,6-diynes Bearing Sulfur and Selenium Functional Groups [作者：YOSHIMATSU MITSUHIRO; WATANABE HIROYASU; KOKETSU ERI,期刊：Organic Letters, 页码：4192-4194 , 文章类型： Article，,卷期：2010年12-18] New cyclizations of 1-sulfanyl- and -selany1-4-oxa-1,6-heptadiynes using sodium alkoxide or thiolates provided 4-alkoxymethy1-3-phenylsulfanyl- and 3,4-bis(sulfanylmethyl)furans in high yields. CCl3CN: A Crucial Promoter of mCPBA-Mediated Direct Ether Oxidation [作者：KAMIJO SHIN; MATSUMURA SHOKO; INOUE MASAYUKI,期刊：Organic Letters, 页码：4195-4197 , 文章类型： Article，,卷期：2010年12-18] The direct oxidation of ether sp(3) C-H bonds using the new reagent system mCPBA/CCl3CN/MeCN has been developed. CCl3CN in MeCN drastically alters the reactivity of m-chloroperbenzoic acid (mCPBA), and chemoselective tra... Copper-Catalyzed Rearrangement of (Z)-Propynal Hydrazones via N-N Bond Cleavage [作者：NAKAMURA ITARU; SHIRAIWA NAOZUMI; KANAZAWA RYO; TERADA MASAHIRO,期刊：Organic Letters, 页码：4198-4200 , 文章类型： Article，,卷期：2010年12-18] Propynal hydrazones are successfully converted to the corresponding 3-aminoacrylonitriles in the presence of copper catalysts in good to high yields. As an example, (Z)-N-(hex-2-ynylidene)morpholin-4-amine reacted in the... Asymmetric Hydrogenation of Protected Allylic Amines [作者：STEINHUEBEL DIETRICH P; KRSKA SHANE W; ALORATI ANTHONY; BAXTER JENNY M; BELYK KEVIN; BISHOP BRIAN; PALUCKI MICHAEL; SUN YONGKUI; DAVIES IAN W,期刊：Organic Letters, 页码：4201-4203 , 文章类型： Article，,卷期：2010年12-18] A general method for the enantioselective hydrogenation of protected allylic amine derivatives is described. This procedure relies on the generation of a cationic ruthenium complex with the axially chiral ligand (-)-TMBT... Convergent Synthesis of Trisubstituted Z-Allylic Esters by Wittig-Schlosser Reaction [作者：HODGSON DAVID M; ARIF TANZEEL,期刊：Organic Letters, 页码：4204-4207 , 文章类型： Article，,卷期：2010年12-18] beta-Lithiooxyphosphonium ylides, generated in situ from aldehydes and Wittig reagents, react readily with halomethyl esters to form trisubstituted Z-allylic esters. The methodology was applied to a total synthesis of th... Reductive Ligation Mediated One-Step Disulfide Formation of S-Nitrosothiols [作者：ZHANG JIMING; LI SHENG; ZHANG DEHUI; WANG HUA; WHORTON A RICHARD; XIAN MING,期刊：Organic Letters, 页码：4208-4211 , 文章类型： Article，,卷期：2010年12-18] A one-step reductive ligation mediated disulfide formation of S-nitrosothiols was developed. This reaction involves the reaction of the S-nitroso group with phosphine-thioesters to form sulfenamide and thiolate intermedi... Periselectivity Switch of Acylketenes in Cycloadditions with 1-Azadienes: Microwave-Assisted Diastereoselective Domino Three-Component Synthesis of alpha-Spiro-delta-lactams [作者：PRESSET MARC; COQUEREL YOANN; RODRIGUEZ JEAN,期刊：Organic Letters, 页码：4212-4215 , 文章类型： Article，,卷期：2010年12-18] The microwave-assisted Wolff rearrangement of cyclic 2-diazo-1,3-diketones in the presence of primary amines and alpha beta-unsaturated aldehydes provides a straightforward three-component stereoselective access to a var... A Novel Synthesis of 4H-Chromen-4-ones via Intramolecular Wittig Reaction (vol 2, pg 3821, 2000) [作者：KUMAR PRADEEP; BODAS MANDAR S,期刊：Organic Letters, 页码：4216-4216 , 文章类型： Correction，,卷期：2010年12-18] The NIH Public Access Mandate [作者：SMITH AMOS B III; LEWANDOWSKI TERRI,期刊：Organic Letters, 页码：3967-3967 , 文章类型： Editorial Material，,卷期：2010年12-18]