D. Black, P. Keller, N. Kumar
1993
Citations
0
Influential Citations
22
Citations
Journal
Tetrahedron
Abstract
Abstract The N-aroyl-4,6-dimethoxyindoles (15–21), prepared from 4,6-dimethoxyindole (14), were converted by palladium acetate in acetic acid into the pyrrolophenanthridones (22–28) in moderate yields (30–65%). These products are related to some pyrrolophenanthridone alkaloids, which lack the methoxyl groups. Similar aryl-aryl coupling reactions of N-benzylindoles could not be effected.