Thiyl Radical Trapped by Cobalt Catalysis: An Approach to Markovnikov Thiol–Ene Reaction
作者:Rong-Jin Zhang、Xiang-Rui Li、Rong-Bin Liang、Yonghong Xiao、Qing-Xiao Tong、Jian-Ji Zhong、Li-Zhu Wu
DOI:10.1021/acs.orglett.3c03740
日期:2024.1.26
In the presence of a thiyl radical species, the catalytic Markovnikov thiol–ene reaction is challenging because it prefers to proceed via a radical pathway, thereby leading to anti-Markovnikov selectivity. In this work, a rare example of thiyl radical engaged in Markovnikov thiol–ene reaction enabled by cobalt catalysis is reported. This protocol features the avoidance of unique oxidants, exclusive
在硫基自由基存在的情况下,催化马尔可夫尼科夫硫醇-烯反应具有挑战性,因为它更喜欢通过自由基途径进行,从而导致反马尔可夫尼科夫选择性。在这项工作中,报道了硫基自由基参与钴催化的马尔可夫尼科夫硫醇-烯反应的罕见例子。该方案的特点是避免使用独特的氧化剂、独特的区域选择性和广泛的底物范围。复杂分子的可扩展合成和后期修饰证明了该方案的实用性。