作者:Shogo Hashizume、Kounosuke Oisaki、Motomu Kanai
DOI:10.1002/asia.201200359
日期:2012.11
A copper‐catalyzed migratory oxidative‐coupling reaction between nitrones and various ethers/amines exhibited high functional‐group tolerance. Even in aqueous media, the reaction proceeded efficiently. For practical use of this catalysis, a unique sequential Huisgen cycloaddition was demonstrated. Mechanistic investigations revealed that the reaction proceeded through oxidative catalytic activation
硝酮与各种醚/胺之间的铜催化迁移氧化偶联反应显示出较高的官能团耐受性。即使在水性介质中,反应也有效进行。对于该催化的实际应用,证明了独特的连续惠斯根环加成反应。机理研究表明,该反应是通过醚/胺的氧化催化活化而进行的,以同时通过铜(II)和氧基进行的双单电子抽象得到亚胺/氧ox中间体。