反应详情

To a solution of 1-(3-aminopropyl)-4-benzhydrylpiperazine (1.2 g) in a mixture of pyridine (2 ml) and chloroform (15 ml) was dropwise added a solution of benzoyl chloride (0.55 ml) in chloroform (3 ml) at ambient temperature with stirring, which was continued for 1.5 hours. The reaction mixture was washed successively with aqueous sodium bicarbonate and water. The chloroform layer was separated, dried and evaporated in vacuo to give an oil. According to a conventional manner, the oil was converted to hydrochloric acid salt, which was recrystallized from a mixture of methanol and diethyl ether to afford 1-(3-benzoylaminopropyl)-4-benzhydrylpiperazine dihydrochloride (1.0 g) as white crystals. mp: 235°-237° C.

1. washThe reaction mixture was washed successively with aqueous sodium bicarbonate and water
2. customThe chloroform layer was separated
3. customdried
4. customevaporated in vacuo
5. customto give an oil
6. customwas recrystallized from a mixture of methanol and diethyl ether