Methylamine → Imidodicarbonic diamide, N-methyl-N',2-diphenyl-

Participants

Reaction Steps

In 30 ml of acetonitrile, 6.0 g (0.025 mol) of 1,3-diphenyl-1,3-diazetidine-2,4-dione was added. Then 3.9 ml (0.05 mol) of aqueous solution (40%) of methylamine was added dropwise thereinto with stirring. The reaction was continued at 50° C. for 0.5 hours, then the solvent was removed by distillation under a reduced pressure. The residue thus obtained was recrystallized from ethanol to obtain 5.1 l g (yield 76%) of 1-methyl-3,5-diphenylbiuret having a melting point of 145°-147° C.

Provenance & Evidence