Manganese-Catalyzed [3 + 2] Cyclization of Ketones and Isocyanates via Inert C–H Activation
作者:Jiaqi Huo、Yunhui Yang、Congyang Wang
DOI:10.1021/acs.orglett.1c00857
日期:2021.5.7
manganacycles with isocyanates were first reported by Kaesz and Liebeskind in 1975 and 1990, respectively. The buildup of a closed manganese catalytic cycle for the reaction of ketones and isocyanates remains an unsolved problem. Herein, an unprecedented trio of Me2Zn/AlCl3/AgOTf is developed to build up manganese catalysis, which enables the [3 + 2] cyclization of ketones with isocyanates via inert C–H