Cu-Facilitated C−O Bond Formation Using N-Hydroxyphthalimide: Efficient and Selective Functionalization of Benzyl and Allylic C−H Bonds
摘要:
A highly efficient protocol for the benzyl or allylic C-H functionalization of simple hydrocarbons has been developed using stoichiometric amounts of N-hydroxyphthalimide and Phl(OAc)(2) in the presence of CuCl catalyst. The reaction was revealed to proceed via a radical pathway, in which phthalimide N-oxyl (PINO) radical plays a dual role, serving as a catalytic hydrogen abstractor from hydrocarbons as well as a stoichiometric reagent to couple with the resultant alkyl radicals.
Cu-Facilitated C−O Bond Formation Using <i>N</i>-Hydroxyphthalimide: Efficient and Selective Functionalization of Benzyl and Allylic C−H Bonds
作者:Ji Min Lee、Eun Ju Park、Seung Hwan Cho、Sukbok Chang
DOI:10.1021/ja8031218
日期:2008.6.1
A highly efficient protocol for the benzyl or allylic C-H functionalization of simple hydrocarbons has been developed using stoichiometric amounts of N-hydroxyphthalimide and Phl(OAc)(2) in the presence of CuCl catalyst. The reaction was revealed to proceed via a radical pathway, in which phthalimide N-oxyl (PINO) radical plays a dual role, serving as a catalytic hydrogen abstractor from hydrocarbons as well as a stoichiometric reagent to couple with the resultant alkyl radicals.