Abstract
Reactions of the 1,4-dithiin ring opening in 1,4-dithiinodiquinoline 1 with selected oxygen nucleophiles followed by S- and N-alkylation led to sulfides possessing one or two quinolinyl or quinolonyl units. Diquinolinyl sulfides 2 were transformed into quinolinyl-quinolonyl sulfides 3 or diquinolonyl sulfides 9 via thermal rearrangement (the O-N alkyl migration) or hydrolysis of the alkoxy and alkylthio groups with the hydrochloric acid-ethanol mixture.
LXXXIII in the series of Azinyl Sulfides.