C–N Bond Activation of <i>N</i>,<i>N′</i>-Dialkylacylhydrazines Mediated by β-Fragmentation of Nitrogen-Centered Radical
作者:Yuxian Zhang、Shuwei Zhang、Zheng Sun、Kaixuan He、Qian Chen、Yu Yuan、Xiaodong Jia
DOI:10.1021/acs.joc.9b01851
日期:2019.11.1
In the presence of tert-butylnitrite and dioxygen, the C-N bond activation of N,N'-dialkylacylhydrazines was realized, providing a series of N-nitrosoacylhydrazines in high yields. Different from transition-metal and other radical catalysis, this reaction is mediated by a nitrogen-centered radical of the corresponding N,N'-dialkylacylhydrazine and further beta-fragmentation, which was supported by the mechanistic study.