摘要 使用四氯化钛由醛醇缩合制得的3-取代的2-(苯硫基)丙烯酸酯用于合成苯并[ b ]噻吩。在优化的Heck条件下,含有芳基和烷基的丙烯酸酯以合理的收率产生了所需的苯并[ b ]噻吩,但是具有杂芳基的丙烯酸酯在该条件下收率较低或没有产物。 使用四氯化钛由醛醇缩合制得的3-取代的2-(苯硫基)丙烯酸酯用于合成苯并[ b ]噻吩。在优化的Heck条件下,含有芳基和烷基的丙烯酸酯以合理的收率产生了所需的苯并[ b ]噻吩,但是具有杂芳基的丙烯酸酯在该条件下收率较低或没有产物。
Copper-Catalyzed Heck-Type Couplings of Sulfonyl Chlorides with Olefins: Efficient and Rapid Access to Vinyl Sulfones
作者:Lixia Liu、Pan Xue、Qiulin Chen、Chengming Wang
DOI:10.1016/j.tetlet.2021.153319
日期:2021.9
A copper-catalyzed redox-neutral alkene sulfonylation reaction has been developed. This reported protocol can be easily scale up to a gram scale, and smoothly applied to the late-stage modification of several bioactive molecules.
Visible-light-induced decarboxylative sulfonylation of cinnamic acids with sodium sulfinates by using Merrifield resin supported Rose Bengal as a catalyst
作者:Pinhua Li、Guan-Wu Wang
DOI:10.1039/c9ob00790c
日期:——
decarboxylative sulfonylation of cinnamic acids with sodium sulfinates for the synthesis of vinyl sulfones was developed. The reaction proceeded smoothly in the presence of Merrifield resin supported Rose Bengal ammonium salt as a photocatalyst and tert-butyl hydroperoxide (70% in water) as an oxidant in aqueous DMSO solution at roomtemperature under green LED (530-535 nm) irradiation under an air atmosphere
Copper-catalyzed highly selective direct hydrosulfonylation of alkynes with arylsulfinic acids leading to vinyl sulfones
作者:Wei Wei、Jinli Li、Daoshan Yang、Jiangwei Wen、Yueting Jiao、Jinmao You、Hua Wang
DOI:10.1039/c3ob42522c
日期:——
Copper-catalyzed direct hydrosulfonylation of alkynes with arylsulfinic acids for the synthesis of (E)-vinyl sulfones has been developed with 100% atom efficiency.
Direct difunctionalization of alkynes with sulfinic acids and molecular iodine: a simple and convenient approach to (E)-β-iodovinyl sulfones
作者:Wei Wei、Jiangwei Wen、Daoshan Yang、Huijun Jing、Jinmao You、Hua Wang
DOI:10.1039/c4ra13998d
日期:——
A simple and convenientapproach for the construction of β-iodovinyl sulfones has been developed via direct difunctionalization of alkynes with sulfinic acids and molecular iodine. The present reaction provides a highly efficient approach to a diverse range of substituted (E)-β-iodovinyl sulfones in moderate to good yields with excellent stereo- and regio-selectivities but no need for any metal catalyst