Abstract
The reaction of 3-chloro-3-nitromethylindolin-2-one (2a) with aniline resulted the formation of 3-anilinomethylene-(4a) and 3-(p-phenylazo) anilinomethyleneindolin-2-one (5). Chromatographying of 2a, b using Al2O2 in chloroform solution gave 3-nitro-methyleneindolin-2-ones (7a, b), which were also reacted with amines to give 3-amino-methyleneindolin-2-ones (4a, b and 8a, b).
