Nickel-Catalyzed Synthesis of Oxazoles via C−S Activation
作者:Kyoungsoo Lee、Carla M. Counceller、James P. Stambuli
DOI:10.1021/ol900260g
日期:2009.3.19
The synthesis of 2-substituted oxazoles is achieved via nickel-catalyzed cross-couplingreaction of 2-methylthio-oxazole and various organozinc reagents. An extension of this method is demonstrated with a chemoselective, one-pot synthesis of unsymmetrical 2,5-disubstitutedoxazoles. This synthesis of 2- and 2,5-substituted oxazoles using this method provides great advantages over previous methods for