Copper-Catalyzed Dehydrogenative Cross-Coupling Reactions of N-para-Tolylamides through Successive CH Activation: Synthesis of 4H-3,1-Benzoxazines
作者:Tao Xiong、Yan Li、Xihe Bi、Yunhe Lv、Qian Zhang
DOI:10.1002/anie.201101391
日期:2011.7.25
A novel annulation reaction of readily available tolylamides was catalyzed by Cu(OTf)2 in the presence of Selectfluor and water through successive intermolecular CH activated dehydrogenativecross‐coupling reactions of benzylic methyl C(sp3)H and aromatic C(sp2)H bonds, and subsequent intramolecular CO bond formation (see scheme).