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■ The 1,4-Dithiin Ring Opening in 1,4-Dithiinodiquinolines as a Route to Quinoline Crown Thioethers

Krystian Pluta

*Department of Organic Chemistry, The Medical University of Silesia, Jagiellonska Str. 4, 41-200 Sosnowiec, Poland

Abstract

Quinoline crown thioethers (7) and (8) with 8-, 9-, 10-, 11-, 12-, 18-, 20-, 21- and 24-membered macrocyclic thiacrown ring were obtained by the 1,4-dithiin ring opening in 1,4-dithiinodiquinolines (1) and (2) with divalent sulfur nucleophiles followed by S-alkylation with divalent alkylating agents. Thiacrowns (7) and (8) contain two or four quinoline units.