Directing-Group-Assisted Markovnikov-Selective Hydrothiolation of Styrenes with Thiols by Photoredox/Cobalt Catalysis
作者:Qian Xiao、Hong Zhang、Jing-Hong Li、Jing-Xin Jian、Qing-Xiao Tong、Jian-Ji Zhong
DOI:10.1021/acs.orglett.1c00999
日期:2021.5.7
organosulfur compounds, limited examples of transition-metal-catalyzed thiol-ene reactions have been reported. However, in this work, a directing-group-assisted hydrothiolation of styrenes with thiols by photoredox/cobalt catalysis is found to proceed smoothly to afford Markovnikov-type sulfides with excellent regioselectivity.
与发达的自由基硫醇-烯反应获得反马尔可夫尼可夫型产物相反,烯烃的催化马尔可夫尼可夫选择性加氢硫醇化的研究非常有限。由于有机硫化合物对金属催化剂的催化剂中毒,已经报道了过渡金属催化的硫醇-烯反应的有限实例。然而,在这项工作中,发现通过光氧化还原/钴催化的苯乙烯与硫醇的直接基团辅助的氢硫醇化可以顺利进行,以提供具有优异的区域选择性的马尔可夫尼科夫型硫化物。