Copper catalyzed access to functionalized oxazoles from oximes via carbenoids
作者:Anugula Nagaraju、K. Sandeep、K.C. Kumara Swamy
DOI:10.1016/j.tetlet.2018.05.004
日期:2018.6
straightforward synthesis of diverse oxazoles from oximes possessing a vicinal carbonyl group has been achieved by treatment of the latter with terminal diazo compounds like ethyl/benzyl diazoacetate and diazoacetophenone (which act as carbenoids) in one pot. At least two reducible functional groups (two ester groups or cyano + ester) are simultaneously introduced in one step. This reaction involves expulsion