N-Acyliminium ion cyclisation versus rearrangement. The synthesis of 13,13-dimethylberberines and 3,4-dimethylisoquinolin-1-ones
作者:Harry Heaney、Mutasem O Taha
DOI:10.1016/s0040-4039(00)00081-2
日期:2000.3
derivatives gave the related carbinol amides that function as acyliminium ion precursors in the presence of Lewis or protic acids; the fate of the acyliminium ions is determined in part by the nucleophilicity of the β-arylethyl group on nitrogen, the electrophile used to generate the ion, and the precise reaction conditions and led either to cyclisationreactions or methyl migration.