SYNTHESIS OF HETEROFUNCTIONAL 3,3'-SULFONYLDIBENZOIC ACID DERIVATIVES
DOI:
https://doi.org/10.1007/2918Keywords:
aromatic dicarboxylic acids, diarylsulfones, phenoxathiine, 43, 3'-sulfonyldibenzoic acid, aromatic nucleophilic substitutionAbstract
A method for the preparation of previously difficult to access heterofunctional 3,3'-sulfonyldibenzoic acid derivatives containing amino-, alkylamino-, hydroxy-, and alkoxy substituents at the vicinal position relative to the sulfonyl group has been elaborated. The interaction of methyl 4-nitro-10,10-dioxophenoxathiine-2,8-dicarboxylate with amines and O-nucleophiles was shown to proceed under mild conditions, resulting in oxathiine ring opening, and the nucleophilic substitution occurred exclusively at position 4а of phenoxathiine.
How to Cite
Vasilevskii, D. A.; Yashchenko, V. S.; Ol'khovik, V. K. Chem. Heterocycl. Compd. 2016, 52, 128. [Khim. Geterotsikl. Soedin. 2016, 52, 128.]
For this article in the English edition see DOI 10.1007/s10593-016-1844-4