A synthetic approach to benzo[1,2-b: 4,3-b′]dipyrroles from isoquinolines
Abstract
6,7-Dimethoxy-1-methylisoquinoline has been converted into 3-acetyl-3,6-dihydro-4,5-dimethoxybenzo[1,2-b: 4,3-b′]dipyrrole (6b) and thence into 3,6-diacetyl-1,2,3,6-tetrahydro-4,5-dimethoxybenzo[1,2-b: 4,3-b′]dipyrrole (7).