Efficient Synthesis of Vinyl Sulfones by Manganese-Catalyzed Decarboxylative Coupling of Cinnamic Acids with Aromatic Sulfinic Acid Sodium Salts
作者:Wei Deng、Jiannan Xiang、Na Xue、Ruqing Guo、Xinman Tu、Weiping Luo
DOI:10.1055/s-0035-1562476
日期:——
An efficient synthesis of vinyl sulfones is described. Reactions of cinnamic acids with aromatic sulfinic acid sodium salts in the presence of a catalytic amount of manganese(II) acetate tetrahydrate (5 mol%) in dimethyl sulfoxide (DMSO) afforded the desired vinyl sulfones in good to excellent yields. Notably, the reaction does not need any base or iodide as additive. The use of DMSO as the solvent
描述了乙烯基砜的有效合成。在二甲基亚砜 (DMSO) 中催化量的四水合乙酸锰 (II) (5 mol%) 存在下,肉桂酸与芳族亚磺酸钠盐的反应以良好至极好的收率提供所需的乙烯基砜。值得注意的是,该反应不需要任何碱或碘化物作为添加剂。使用 DMSO 作为溶剂并在空气中进行反应是获得良好收率的关键。
Synthesis of Vinylsulfones Via Palladium-Catalyzed Decarboxylative Coupling of Cinnamic Acids with Aromatic Sulfinic Acid Sodium Salts
作者:Ruqing Guo、Qingwen Gui、Dadian Wang、Ze Tan
DOI:10.1007/s10562-014-1286-5
日期:2014.8
A highly efficient synthesis of vinylsulfones was achieved via decarboxylative cross-coupling reaction of cinnamic acids with aromaticsulfinic acid sodium salts catalyzed by Pd(OAc)2 and dppb in the presence of Ag2CO3. The reaction was found to furnish various vinylsulfones in good yields instead of the expected desulfitative product stilbenes. Mechanistic investigation also suggested that the decarboxylation
Convenient synthesis of α,β-unsaturated sulfones via a Mizoroki–Heck reaction of arylboronic acids with phenyl vinyl sulfones
作者:George W. Kabalka、Sankar K. Guchhait
DOI:10.1016/j.tetlet.2004.03.179
日期:2004.5
Palladium acetate catalyzed Mizoroki–Heck reaction of arylboronic acids with phenyl vinylsulfones afford α,β-unsaturated sulfones in good yields.
乙酸钯催化的芳基硼酸与苯基乙烯基砜的Mizoroki-Heck反应可得到高产率的α,β-不饱和砜。
Direct Sulfonylation of Lithiated Alkyl Phosphonates with Benzenesulfonyl Fluoride; Facile Method for Preparation of α-Sulfonyl Alkyl Phosphonates and Vinyl Sulfones
作者:Won Bum Jang、Hyoung Joon Jeon、Dong Young Oh∗
DOI:10.1080/00397919808005967
日期:1998.4
Abstract α-Sulfonyl phosphonates were synthesized by direct sulfonylation of lithiated alkyl phosphonates with benzenesulfonyl fluoride which have shown different reactivity from benzenesulfonyl chloride, generally known as a sulfonylating reagent.
CAN Mediated Reaction of Aryl Sulfinates with Alkenes and Alkynes: Synthesis of Vinyl Sulfones, β-Iodovinyl Sulfones and Acetylenic Sulfones
作者:Vijay Nair、Anu Augustine、T. D. Suja
DOI:10.1055/s-2002-34838
日期:——
Cerium(IV) ammonium nitrate (CAN) mediated reaction of arylsulfinates and sodium iodide with alkenes afforded vinylsulfones in very good yields. Alkynes underwent similar reaction to give β-iodovinyl sulfones, which on treatment with potassium carbonate afforded the corresponding acetylenic sulfones in high yields.