Copper(I) reactions in N-heterocycle synthesis: efficient preparation of substituted pyrrolidinones
作者:David T. Davies、Neha Kapur、Andrew F. Parsons
DOI:10.1016/s0040-4039(99)01805-5
日期:1999.12
Reaction of halo-enamides with copper(I) chloride in boiling toluene has been shown to produce unsaturated pyrrolidinones in excellent yield (81–94%). Both di- and trichloroamide precursors can be used to form dienes via an initial 5-endo-trig radical cyclisation.