Chemistry of Heterocyclic Compounds p. 1041 - 1045 (1989)
Update date:2022-08-11
Topics:
Stankyavichyus, A. P.
Terent'ev, P. B.
Solov'ev, O. A.
Benzo-substituted ortho-hydroxynitrosoquinoline and isoquinoline are found in the gas phase predominantly as the hydroxyimino-ortho-quinoid tautomeric form and under electron bombardment they do not undergo a second order Beckmann rearrangement.Molecular ions of 4-hydroxy-3-nitrosocarbostyryls and coumarin have almost exclusively the structure of the corresponding 2,4-dioxo-3-hydroxyiminohetarene; they also do not undergo rearrangement and decompose predominantly by retrodiene cleavage.
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