Chemistry of Heterocyclic Compounds p. 1112 - 1114 (1980)
Update date:2022-08-11
Topics:
Gornostaev, L. M.
Sakilidi, V. T.
4-Halo-1-aminoanthraquinones are formed when anthra<1,9-cd>isoxazol-6-ones are refluxed in hydrohalic acids.The 3 position undergoes halogenation when 5-substituted isoxazoles are used.The process takes place via a one-proton mechanism with the participation of halide ion in the rate-determining step, possibly with the intermediate formation of N-haloaminoanthraquinones.
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