New imidoyl isothiocyanates. Chemical behavior in polar solvents. Reaction with sulfenyl thiocyanates: preparation of 1,2-dihydro-2-thioxo-1,3,5-triazines and 1,3,4,6,6a-triazadithia[6aS(IV)]pentalenes
New imidoyl isothiocyanates. Chemical behavior in polar solvents. Reaction with sulfenyl thiocyanates: preparation of 1,2-dihydro-2-thioxo-1,3,5-triazines and 1,3,4,6,6a-triazadithia[6aS(IV)]pentalenes