反应详情

Formic acid (23 g., 0.5 mole), dimethylaminopropylamine (51 g., 0.5 mole) and toluene (50 ml) were azeotroped together with continual removal of water using a Dean and Stark separator until no more water was formed. Toluene was distilled off and the pale yellow residue distilled in vacuo. The colourless liquid product of low smell (N-(3-dimethylaminopropyl)formamide) was obtained in a yield of 59% of theory, b.p. 140° C/15 mm Hg.

1. customwas formed
2. distillationToluene was distilled off
3. distillationthe pale yellow residue distilled in vacuo