THE PREPARATION OF 5-NITRO-2-AMINOPHENOL AND SOME DERIVATIVES

Authors
DELIGEORGIEV T ZANEVA D KALCHEVA V SIMOV D
Citation
T. Deligeorgiev et al., THE PREPARATION OF 5-NITRO-2-AMINOPHENOL AND SOME DERIVATIVES, Dyes and pigments, 23(2), 1993, pp. 85-90
Citations number
5
Categorie Soggetti
Chemistry Applied
Journal title
Dyes and pigments → ACNP
ISSN journal
01437208
Volume
23
Issue
2
Year of publication
1993
Pages
85 - 90
Database
ISI
SICI code
0143-7208(1993)23:2<85:TPO5AS>2.0.ZU;2-I
Abstract
A facile method for the preparation of 5-nitro-2-aminophenol and its d erivatives is described Starting from isatins, through Bayer-Villiger oxidation and nitration of the intermediate 2,3-dioxo-4H-1,4-benzooxaz ines and hydrolysis of the corresponding nitro compounds to 5-nitro-2- aminophenols, the procedure is shown to be an effective and reliable r oute to these compounds. From two new 5-nitro-2-aminophenols thus prep ared, azo dyes from 2-naphthol and 1-phenyl-3-methylpyrazolone-5 were obtained.