Substituted 2,4,6-triamino-1,3,5-thiadiazinium salts: a new heteroaromatic system

10 new 1,3,5-thiadiazinium iodides were synthesized, in an attempt to find insect sterilants related to hexamethylmelamine and 3,5-bis(dimethylamino)-1,2,4-ditiazolium bromide. The thiadiazinium ring was formed by reacting dithiazolium with ammonia forming amidinothiourea, then condensing it with thiophosgene. Synthesis and NMR spectra of several substituents are discussed, but no biologic tests were reported.