Originator
Sensit,Thiemann,W. Germany,1974
Manufacturing Process
21.13 grams of γ,γ-diphenyl-propylamine and 12.01 grams of acetophenone
are hydrogenated in 200 ml of methanol at 55°C and a pressure of 10
atmospheres in the presence of palladium charcoal. On filtration of the
catalyst the solution is concentrated and the remainder is distilled in vacuo at
a pressure of 0.3 Hg mm. The main distillate is collected at 206° to 210°C.
25.38 grams of N-[1'-phenylethyl-(1')]-1,1-diphenyl-propyl-(3)-amine are
obtained.
The product is dissolved in 134 ml of 96% ethanol whereupon 26.8 ml of
concentrated hydrochloric acid and 201 ml of water are added while cooling
with ice-water. The precipitate is filtered off and dried in vacuo at 100°C.
22.98 grams of N-[1'-phenylethyl)-(1')]-1,1-diphenyl-propyl-(3)-amine
hydrochloride are obtained. MP 200° to 201°C. On recrystallization from 285
ml of a 2:1 mixture of water and 96% ethanol the melting point remains
unchanged.
