Enantioselective ring-opening reaction of meso-epoxides with ArSH catalyzed by heterobimetallic Ti–Ga–Salen system
作者:Jiangtao Sun、Fang Yuan、Minghua Yang、Yi Pan、Chengjian Zhu
DOI:10.1016/j.tetlet.2008.11.060
日期:2009.2
The enantioselective ring-opening reaction of meso-epoxides with aryl thiols catalyzed by a chiral heterobimetallic Ti–Ga–Salen complex was realized, and the 1,2-mercapto alcohols were obtained in good yields and moderate to high enantioselectivities (up to 92% ee). A strong synergistic cooperation between different Lewis acids in the system was exhibited in the catalytic process.
的对映选择性开环反应的内消旋环氧化物与芳基硫醇催化由手性异核的Ti-Ga的Salen配复合物实现,该1,2-二巯基醇以良好产率获得和中到高对映选择性(高达92% ee)。在催化过程中,体系中的不同路易斯酸之间表现出强烈的协同作用。