Iminium carbonic acid derivatives salts VII, part I: Electrophilic reactions of 2-methylthio-5,6-dihydro-4H-1,3-thiazinium iodides, 2-methylthio-4,5-dihydrothiazolium iodides, and 2-methylthio-5-methylthiazolium iodides with N-nucleophiles

Article abstract of DOI:10.1002/ardp.19953280507

Cyclic salts of the dithiocarbonic acid diester imidium type react with NH₂-nucleophiles to the cyclic isothioureas. Some of these compounds were oxidized to cyclic isothiourea-S,S-dioxides.