Synthesis of Tricyclic Lactams from Heterocyclic Imines
作者:Jürgen Martens、Timo Stalling
DOI:10.1055/s-0032-1316829
日期:——
tricyclic lactams were prepared in a two-step synthesis. First, methoxyamides with a phenyl ring in α- or β-position were generated. Finally, these substrates were converted to valero- and caprolactams, respectively, via intramolecular Friedel–Crafts cyclization in the presence of a Lewis acid. Additionally, effects of substituent groups at the phenyl ring in the electrophilic aromatic substitution