Rh[III]-Catalyzed C–H Amidation Using Aroyloxycarbamates To Give <i>N</i>-Boc Protected Arylamines
作者:Christoph Grohmann、Honggen Wang、Frank Glorius
DOI:10.1021/ol401209f
日期:2013.6.21
The Rh(III)-catalyzed amidation of C(sp(2))-H bonds by the use of electron-deficient aroyloxycarbamates as efficient electrophilic amidation partners is reported. The reaction proceeded under mild conditions with broad functional group tolerance, and pyridine and O-methyl hydroxamic acids serve as efficient directing groups, giving access to valuable N-Boc protected arylamines (also Fmoc and Cbz). Preliminary mechanistic experiments are discussed.