3-dimethoxybenzoic acid hydrazones 6b, f– h, j and imine 6a yielded 2-substituted 3-acetoxyisoindolinones (9i– n and 10e, respectively). Under similar conditions, the thiosemicarbazone 6i afforded the thiadiazoloisoindole derivative 11. The structures of the products were proved by spectroscopic evidence and through unambiguous syntheses via the corresponding 3-chloro- and 3-hydroxyisoindolinone derivatives (9a–