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Photochemical conversion of o ‐phenylenediamine and o ‐aminophenol into heterocyclics
Author(s) -
Crank G.,
Makin M. I. H.
Publication year - 1989
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570260447
Subject(s) - chemistry , phenazine , o phenylenediamine , hydrochloric acid , benzimidazole , aqueous solution , solvent , acetic acid , diamine , ethanol , organic chemistry , medicinal chemistry , catalysis
o ‐Phenylenediamine is photo‐oxidized to phenazine‐2,3‐diamine in ethanolic or aqueous hydrochloric acid solution. In acetic or propionic acid solutions it forms benzimidazole derivatives. o ‐Aminophenol in ethanol is photo‐oxidized to 2‐amino‐3 H ‐phenoxazin‐3‐one and two tetracyclic solvent addition products.