Cobalt–Salen Complex-Catalyzed Oxidative Generation of Alkyl Radicals from Aldehydes for the Preparation of Hydroperoxides
作者:Eiichi Watanabe、Atsushi Kaiho、Hiroyuki Kusama、Nobuharu Iwasawa
DOI:10.1021/ja406028c
日期:2013.8.14
Catalytic generation of alkyl radicals from aldehydes via oxidative deformylation was realized using a cobalt-salen complex with H2O2. The deformylation was thought to proceed through homolytic cleavage of peroxohemiacetal intermediates to provide even primary alkyl radicals under mild conditions. Variously substituted and functionalized hydroperoxides were obtained from corresponding aldehydes in good yield
使用钴-salen 配合物与 H2O2 实现了通过氧化去甲酰化从醛催化生成烷基自由基。去甲酰化被认为是通过过氧半缩醛中间体的均裂进行的,以在温和条件下提供甚至伯烷基。从相应的醛中以良好的收率获得了各种取代和官能化的氢过氧化物。