Rhodium(III)-Catalyzed Intermolecular Direct Amination of Aromatic C–H Bonds withN-Chloroamines
摘要:
A Rh(III)-catalyzed direct aromatic C-H amination is achieved using N-chloroamines as a reagent. Furthermore, we also developed a one-pot amination protocol Involving In situ chlorination of the secondary amines. The catalytic amination operates at mild conditions with excellent functional group tolerance and regioselectivity.
Rh[III]-Catalyzed Direct C–H Amination Using<i>N</i>-Chloroamines at Room Temperature
作者:Christoph Grohmann、Honggen Wang、Frank Glorius
DOI:10.1021/ol203353a
日期:2012.1.20
An efficient Rh(III)-catalyzed direct C-H amination of N-pivaloyloxy benzamides with N-chloroamines proceeding at room temperature was achieved. The versatile directing group allows for selective mono- and diamination and can be readily converted to give valuable benzamide or aminoaniline derivatives. Mechanistic studies have been carried out to elucidate the reaction pathway.