Nucleophilic addition to the phenoxazonium cation

Autor: Karpishchenko, L. S., Prosyanik, A. V., Burmistrov, S. I.
Zdroj: Chemistry of Heterocyclic Compounds; May 1977, Vol. 13 Issue: 5 p496-498, 3p
Abstrakt: At the instant of its formation of oxidation of phenoxazine with ferric chloride, the phenoxazonium cation adds arenesulfinate and nitrite ions to give 3-arylsulfonyl- and 3-nitrophenoxazines, respectively. It is shown that the introduction of a second sulfonyl group proceeds more slowly and gives 3,7-di(arylsulfonyl)phenoxazines in low yields. The PMR spectra of the synthesized compounds are examined in comparison with 3-substituted phenothiazines.
Databáze: Supplemental Index