反应详情

Approximately 360 g of N-oleyl-1,3-propylenediamine (commercially obtained as Armak Duomeen O) and 150 g of toluene were charged to a 2 liter reactor equipped with heater, agitator, Dean-Stark tube and condenser with provision for blanketing the vapor space with nitrogen. Slowly, over a period of about 10 minutes, approximately 52 g of 88% formic acid were added with agitation. The reaction mixture was slowly heated to about 160° C. over a period of about 5 hours until water removal by azeotropic distillation ceased. The solvent was removed by vacuum distillation at about 160° C. and the mixture was cooled to about 60° C.