Dimethylamine → 1,1-Dimethyl-2-(2-morpholinophenyl)guanidine

Participants

Reaction Steps

A mixture of 2-methyl-1-(2-morpholinophenyl)-2-thiopseudourea hydroidide (3.8 g), a 33% ethanolic solution of dimethylamine (5 ml) and pyridine (25 ml) was heated at 80° C. for 6 hours. Pyridine was removed by evaporation under reduced pressure and the residue treated with a mixture of ice and water to give 1,1-dimethyl-2-(2-morpholinophenyl)guanidine (m.p. 142°-144° C.) which was recrystallised from hexane.

Provenance & Evidence