Synthesis of Thioesters by Simultaneous Activation of Carboxylic Acids and Alcohols Using PPh<sub>3</sub>/NBS with Benzyltriethylammonium Tetrathiomolybdate as the Sulfur Transfer Reagent
A new and simple route for the synthesis of thioesters starting from carboxylicacids and alcohols is reported by usingtetrathiomolybdate as the key sulfurtransferreagent. Triphenylphosphane and N-bromosuccinimide were used for the activation of the carboxylicacid and alcohol in the same pot followed by the transfer of sulfur from tetrathiomolybdate. Thioesters were obtained in good to moderate
Nickel-catalyzed synthesis of benzyl thioesters and benzyl thioethers: Mono and double decarbonylations/rearrangement of epoxy thioester tandem process
作者:Rui Tian、Jia-Xin Li、Yong-Ming Zhu
DOI:10.1016/j.tet.2023.133437
日期:2023.6
A strategy for Ni-catalyzed decarbonylation and rearrangement of epoxy thioester is described. Mono- and double-decarbonylations were selectively achieved by changing catalytic condition, leading to the production of benzyl-thioesters and benzyl-thioethers in moderate to excellent yields. The new protocol enables a facile route for C–S bond formation in a straightforward fashion.
描述了一种用于 Ni 催化的环氧硫酯脱羰基和重排的策略。通过改变催化条件选择性地实现单脱羰基和双脱羰基反应,从而以中等至优异的收率生产苄基硫酯和苄基硫醚。新协议以直接的方式为 C-S 键的形成提供了一条简便的途径。