作者:Fu, Mu-Xian、Lin, Jin-Hong、Xiao, Ji-Chang
DOI:10.1021/acs.orglett.4c02256
日期:——
topic of great importance and has received significant attention, most efforts have focused on the hydrodesulfurization of thiols. In this work, we describe the desulfurization of thiols for nucleophilic substitution. This process occurs rapidly, promoted by the Ph3P/ICH2CH2I system, and can be extended to a wide range of nucleophiles. Notably, free amines can be employed as nucleophiles to synthesize
尽管硫醇脱硫是一个非常重要的话题并受到广泛关注,但大多数努力都集中在硫醇加氢脱硫上。在这项工作中,我们描述了用于亲核取代的硫醇脱硫。在Ph 3 P/ICH 2 CH 2 I系统的促进下,该过程发生得很快,并且可以扩展到广泛的亲核试剂。值得注意的是,游离胺可以用作亲核试剂来合成各种仲胺和叔胺。该方法可耐受多种官能团,包括胺化反应中的羟基。苄硫醇特别活泼,可在室温下 15 分钟内完全转化。尽管烷基硫醇的反应活性较低,但在70℃的反应温度下过夜也能顺利转化。