Research in the chemistry of heterocyclic quinoneimines. 5. Effect of benzannelation of phenothiazin-3-one on its reaction with o- and s-nucleophiles

Research in the chemistry of heterocyclic quinoneimines. 5. Effect of benzannelation of phenothiazin-3-one on its reaction with o- and s-nucleophiles / V. I. Vysokov, G. B. Afanas'eva, O. N. Chupakhin, I. S. Ufimtseva // Chemistry of Heterocyclic Compounds. – 1984. – Vol. 20, № 4. – P. 367-370.

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Год:

1984

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Аннотация

Benzo[a]phenothiazin-5-one reacts with alkoxides, thiols, or thiolates to give 6-alkoxy- and 6-alkyl(aryl)thiobenzo[a]phenothiazin-5-ones, respectively. Benzannelation of phenothiazin-3-one in the quinoneimine fragment markedly hinders reactions with O- and S-nucleophiles with retention of the reaction center in the quinoneimine fragment of the molecule.