Trifluoromethylthiolation of α-Chloroaldehydes: Access to Quaternary SCF<sub>3</sub>
-Containing Centers
作者:Fabien Gelat、Thomas Poisson、Akkattu T. Biju、Xavier Pannecoucke、Tatiana Besset
DOI:10.1002/ejoc.201800418
日期:2018.8.1
Munavalli reagent as the electrophilic SCF3 source, a base-catalyzed trifluoromethylthiolation reaction with a panel of -chloroaldehydes was successfully achieved under mild reaction conditions. The -trifluoromethylthiolated chloroaldehydes were obtained in moderate to high yields (up to 88%). This approach demonstrated a good functional-group tolerance and offered access to highly functionalized quaternary
在这项研究中,开发了一种直接的方法来获取季三氟甲基硫醇化氯醛。使用 Munavalli 试剂作为亲电 SCF3 源,在温和的反应条件下成功实现了碱催化的三氟甲基硫醇化反应与一组 - 氯醛。以中等至高产率(高达88%)获得-三氟甲基硫醇化氯醛。这种方法表现出良好的官能团耐受性,并提供了迄今为止无法获得的高度官能化的季三氟甲基硫醇醛。通过使用手性相转移催化剂研究了对映选择性版本的开发,得到适度对映体过量的对映体富集产品。