Divergent Synthesis of Disulfanes and Benzenesulfonothioates Bearing 2-Aminofurans From N-Tosylhydrazone-Bearing Thiocarbamates
作者:Shaoyu Mai、Qiuling Song
DOI:10.1002/anie.201704091
日期:2017.6.26
An efficient and convenient synthesis of valuable disulfanes and benzenesulfonothioates, having a 2-aminofuran framework, has been developed by employing a copper-catalyzed transformation of readily available N-tosylhydrazone-bearing thiocarbamates. This method features an inexpensive metal catalyst, mild reaction conditions, good functional-group tolerance, short reaction times, and delivers valuable
通过使用容易获得的带有N-甲苯磺酰hydr的硫代氨基甲酸酯的铜催化转化,已经开发了具有2-氨基呋喃骨架的有价值的二硫烷和苯硫基硫代磺酸盐的有效和方便的合成方法。该方法具有廉价的金属催化剂,温和的反应条件,良好的官能团耐受性,较短的反应时间,并提供了有价值且复杂的产品。从含N-甲苯磺酰hydr的硫代氨基甲酸酯生成的铜卡宾被提议作为该转化的关键中间体,并引发随后的级联反应。值得注意的是,从N-甲苯磺酰released释放的Ts阴离子还可以用作亲核试剂,因此在受控条件下形成了苯磺基硫代磺酸盐。