How to make a carbonylative coupling faster than the easier nucleophilicsubstitution? In this communication, a rhodium-catalyzed radical-based carbonylative coupling of alkyl halides with thiolphenols has been realized. Thioesters were isolated in good yields in general.
Conversion of Amides to<i>S</i>-Alkyl and<i>S</i>-Aryl Thioesters via Nitrosoamides and Nitroamides
作者:Ramon Berenguer、Jordi Garcia、Jaume Vilarrasa
DOI:10.1055/s-1989-27234
日期:——
Thiolates react at room temperature with nitrosoamides and, even more rapidly, with nitroamides to afford good yields of S-alkyl and S-aryl thioesters; by-products arising from N-to-S transnitrosations and transnitrations are practically not observed.
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。
Preparation of alkenyl sulfides and enamines by alkylidenation of carboxylic acid derivatives