作者:Madhur S. Joshi、Ashabha I. Lansakara、F. Christopher Pigge
DOI:10.1016/j.tetlet.2014.12.074
日期:2015.6
2-Dialkylimidazoles can be converted to nucleophilic 2-alkylidene imidazolines upon treatment with (BOC)2O under mild conditions. Incorporation of a β-keto amide carbonyl electrophile in the 2-alkylimidazole side chain results in intramolecular aldol-like cyclization to afford imidazole-functionalized γ-lactams. Positioning of a ketone electrophile in a 1-alkyl side chain results in cyclization at the 2-position to afford