Acid promoted dimerization of β-amino-α,β-unsaturated amides affording bis(functionalized) pyrrolinones
作者:Sho Hirai、Haruyasu Asahara、Nagatoshi Nishiwaki
DOI:10.1016/j.tetlet.2016.11.068
日期:2016.12
Polysubstituted pyrrolinones were synthesized by the dimerization of 3-amino-2-butenamides via treatment with 0.5 equiv p-TsOH under mild reaction conditions, including oxidation and 1,2-migration of the methyl group. This method is practically advantageous compared to the conventional methods for the preparation of pyrrolinones, because it does not require difficult experimental manipulations and