Ammonia → Dimethyldipropylenetriamine

216 g of N,N-dimethyl-N'-(β-cyanoethyl)-1,3-diaminopropane are hydrogenated in 216 ml of isopropanol in the presence of 140 g of gaseous ammonia and 13 g of Raney nickel in an autoclave at 120° C. and under an initial pressure of 80 atmospheres until the pressure remains constant, which is already the case after 30 minutes. The catalyst is filtered off with suction, the filtrate is concentrated in a rotary evaporator and the residue is distilled through a packed column. Yield: 205.7 g (92.8%); boiling point 121° C./11 mm Hg.

1. customafter 30 minutes
2. filtrationThe catalyst is filtered off with suction
3. concentrationthe filtrate is concentrated in a rotary evaporator
4. distillationthe residue is distilled through a packed column

ORDレコード

ord-cb7ebbf5dae847e59f7395c398982eda

出典データセット

uspto-grants-1980_05

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US04201854