Carbon Dioxide Mediated Stereoselective Copper-Catalyzed Reductive Coupling of Alkynes and Thiols
作者:Siti Nurhanna Riduan、Jackie Y. Ying、Yugen Zhang
DOI:10.1021/ol3003699
日期:2012.4.6
A simple protocol for the stereoselective copper-catalyzed hydrothiolation of alkynes under a CO2 atmosphere has been developed. The stereoselectivity is determined by the presence/absence of a CO2 atmosphere. The reaction system is robust and utilizes inexpensive, readily available substrates. A cyclic alkene/carboxylate copper complex intermediate is proposed as the key step in determining the stereoselectivity
已经开发了在CO 2气氛下立体选择性铜催化炔烃的氢硫醇化的简单方案。立体选择性取决于是否存在CO 2气氛。该反应系统坚固耐用,并利用廉价,易于获得的底物。提议将环状烯烃/羧酸铜络合物中间体作为确定立体选择性的关键步骤,并且发现当量的水起质子供体的作用。