L. Brandsma et al., DIMERIZATION OF METHYL ISOTHIOCYANATE TO THE 2-MERCAPTO-1-METHYLIMIDZOLE-5(4H)-THIONE ANION UNDER THE ACTION OF A SUPERBASE, Russian chemical bulletin, 47(1), 1998, pp. 187-188
Dimerization of methyl isothiocyanate under the action of potassium di
isopropylamide followed by alkylation of the intermediate dithiolate g
ives 2,5-bis(alkylthio)-1-methylimidazoles in 71-74% yields.