Alternative Synthesis of Dibenzo-and Dipyrido-[1,3]Diazepines from Thioamides and o,o′-Diaminobiaryls

Abstract
Thioamides were treated with iodomethane, and then o,o′-diaminobiphenyl or bipyridyl to afford 6-substituted-5H-dibenzo- or dipyrido [1,3]diazepines in good yields.