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Condensation of o ‐aminophenol and α‐dicarbonyl compounds. Part 2. Dibenzoxazolines
Author(s) -
Belgodere E.,
Bossio R.,
Parrini V.,
Pepino R.
Publication year - 1977
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.5570140602
Subject(s) - chemistry , tautomer , phenylglyoxal , condensation , organic chemistry , aryl , medicinal chemistry , computational chemistry , biochemistry , physics , alkyl , amino acid , arginine , thermodynamics
The study of 2′‐aryl‐2,2′‐dibenzoxazolines (II), obtained together with 2‐hydroxy‐(2 H )‐1,4‐benzoxazines (1) by condensation of o ‐aminophenol with a series of phenylglyoxal derivatives, emphasized that these compounds are an equilibrium mixture of dibenzoxazolines and related tautomeric ketimine forms. This behaviour was widely investigated by ir, uv and pmr spectroscopy. J. Heterocyclic Chem. , 14, 957 (1977)