o-Acetylaminophenylglyoxylic Acid Anil and Its Derivatives

摘要

1-Acetyl-and 1-benzoyl-2- and -3-phenyliminooxoindolines were synthesized. o-(Acetylamino)-phenylglyoxylic acid anil was prepared from 1-acetyl-3-phenylimino-2-oxoindoline. More stable o-(acetyl-amino) phenylglyoxylanilide anil can be prepared not only from o-(acetylamino) phenylglyoxylanilide but also from an ester or chloride of o-(acetylamino) phenylglyoxylic acid anil. o-(Acetylamino) phenyglyoxylothio-semicarbazide was prepared from o-(acetylamino) phenylglyoxylic acid anil and from the corresponding anilide.