Synthesis and Study of the Properties of 7,8-Polymethyleneimidazo[4,5-d]-1,3,2-diazaphosphorin-2-thiones
In thionation of cyclic N-cyanoamidines, a four-step process occurs that leads to derivatives of novel heterocyclic systems: 7,8-polymethyleneimidazo[4,5-d]-1,3,2-diazaphosphorin-2-thiones. We have studied the chemical and spectral properties of the compounds obtained.