ChemInform Abstract: The Preparation of 5‐Nitro‐2‐aminophenol and Some Derivatives.

Abstract

The Preparation of 5-Nitro-2-aminophenol and Some Derivatives.-The isatins (I) are oxidized in a Bayer-Villiger oxidation, nitrated and hydrolyzed to give 5-nitro-2-aminophenols (II). Diazotization and coupling of (II) with pyrazolone (III) gives the dye (IV). -(DELIGEORGIEV, T.; ZANEVA, D.; KALCHEVA, V.; SIMOV, D.; Dyes Pigm. 23 (1993) 2, 85-90; Fac. Chem., Univ., 1126 Sofia, Bulg.; EN)