Author: Tolkunov S. V. Khyzhan A.I. Dulenko V. I.
Publisher: Springer Publishing Company
ISSN: 0009-3122
Source: Chemistry of Heterocyclic Compounds, Vol.39, Iss.12, 2003-12, pp. : 1627-1632
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Abstract
Transformations of oximes of 4-aryl-2,7,7-trimethyl-5-oxo-5,6,7,8-tetrahydroquinolines in PPA have been studied. It is shown that the reaction, depending on substituent at position 4 of quinoline ring, can occur in three directions: aromatization of the saturated ring (Semmler-Wolff aromatization), formation of azepinones - normal products of Beckmann rearrangement, and formation of pyridoacridines.
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