Manganese(<scp>iii</scp>)-promoted thiocarbonylation of alkylborates with disulfides: synthesis of aliphatic thioesters
作者:Bo Chen、Xiao-Feng Wu
DOI:10.1039/d1ob01960k
日期:——
A Mn(III)-promoted thiocarbonylation procedure toward the synthesis of thioesters has been developed. By employing easily available disulfides and potassium alkyltrifluoroborates as the starting materials, and cheap and non-toxic Mn(OAc)3·2H2O as the promotor, a broad range of thioesters were synthesized in good to excellent yields via radical intermediates.
已开发出一种用于合成硫酯的 Mn( III ) 促进的硫代羰基化过程。以易得的二硫化物和烷基三氟硼酸钾为起始原料,以廉价且无毒的Mn(OAc) 3 ·2H 2 O为促进剂,通过自由基中间体以良好至优异的产率合成了多种硫酯。
A New and Efficient Esterification Reaction via Mixed Anhydrides by the Promotion of a Catalytic Amount of Lewis Acid
In the presence of a catalytic amount of Lewis acid, various carboxylic esters or S-phenyl carbothioates are prepared in excellent yields by the respective reactions of equimolar amounts of silyl carboxylates and alkyl silyl ethers or phenyl silyl sulfides with 4-trifluoromethylbenzoic anhydride.
In the presence of a catalytic amount of titanium(IV) salt, various S-phenyl carbothioates are prepared in excellent yields by the reaction of nearly equimolar amounts of silyl derivatives of carboxylic acids and benzenethiols with p-trifluoromethylbenzoic anhydride.