1-Bromo-3-chloropropane → 2,3,6,7-Tetrahydro-5H-[1,3]thiazolo[2,3-b][1,3]thiazin-4-ium bromide

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Reaction Steps

A mixture of 12 g. of thiazolidine-2-thione, and 16 g. of 1-bromo-3-chloro propane in 100 ml. of acetonitrile is refluxed for 12 hours, cooled and the product removed by filtration. Recrystallization from ethanol gives 2,3,5,6-tetrahydrothiazolo[2,3-b]-(1,3)-thiazinium bromide.

Provenance & Evidence