反应详情

[2,3-bis(Acetyloxy)benzoyl]hydrazinecarboxylic acid, t-butyl ester (25 g) was dissolved in 100 ml of methanol containing 6 g of ammonia. After standing over 24 hours at 0° C., the solvent was removed in vacuo and the residue stirred with 100 ml of ice water yielding (2,3-dihydroxybenzoyl)hydrazinecarboxylic acid, t-butyl ester as beige crystals, 17.8 g; melting point 158°-160° C.

1. customthe solvent was removed in vacuo