A chemoselective aerobic oxidation of benzylic azides catalyzed by molybdenum xanthate in an aqueous medium
摘要:
A mild molybdenum-catalyzed, aerobic, chemoselective oxidation of benzylic azides to the corresponding aldehydes in an aqueous medium that tolerates a variety of functional groups including alcohols, esters, ketones, halides and olefins is described. (c) 2008 Elsevier Ltd. All rights reserved.
An efficient aerobicreduction of olefins, internal as well as terminal, is developed using guanidine as an organocatalyst. A remarkable chemoselectivity in reduction has been demonstrated in the presence of a variety of functional groups and protective groups and a selective reduction of a terminal olefin in the presence of an internal olefin is revealed.