161804-81-5Relevant articles and documents
A FACILE SYNTHESIS OF NEW UNSYMMETRICAL AZINES BY CYCLODESULFURIZATION REACTIONS OF DITHIOESTERS WITH DIAMINES
S. M. Hassan
, p. 213 - 218 (2007/10/02)
Dithioesters 2a, b were prepared and methylated to give dimethyl thioesters 3a, b.Azines 4a-d and 5a, b were obtained in one step from 2 with primary diamines or in two steps through 3.Dithioesters 2a, b reacted with amines in ethanol to produce thiosemicarbazones 6a, b and 8a-d, while in butanol reacted with morpholine to form 7a, b. Key words: Azines, dithioester, hydrazinecarbodithioate, imidazoles, pyrimidines, thiosemicarbazones.