Cobalt(II)/<i>N</i>-Hydroxyphthalimide-Catalyzed Cross-Dehydrogenative Coupling Reaction at Room Temperature under Aerobic Condition
作者:Mahendra R. Patil、Noopur P. Dedhia、Anant R. Kapdi、A.Vijay Kumar
DOI:10.1021/acs.joc.8b00203
日期:2018.4.20
This work reports a cobalt(II)/N-hydroxyphthalimide (NHPI)-catalyzed cross-dehydrogenative oxidative coupling of N-aryl tetrahydroisoquinolines with various pro-nucleophiles, such as indoles, nitroalkanes, and trialkylphosphites, active methylene compounds, and other nucleophiles, such as cyanide (ethyl cyanoformate), at room temperature under aerobic conditions. The present protocol is operationally
这项工作报道了钴(II)/ N-羟基邻苯二甲酰亚胺(NHPI)催化的N-芳基四氢异喹啉与各种亲核试剂如吲哚,硝基烷和三烷基亚磷酸酯,活性亚甲基化合物和其他亲核试剂的交叉脱氢氧化偶联,如氰化物(氰基甲酸乙酯),在室温下好氧的条件下。本方案操作简单,可以在无光辐照的情况下和在无过氧化物的条件下进行,甚至以克为单位,以提供良好至优异收率的产物。在质谱和控制实验的基础上,提出了催化反应途径。