反应详情

A mixture of 1-benzyl-4-piperidinecarbonylchloride hydrochloride (25.0 g, 91 mmol), 10,11-dihydro-5H-dibenzo[b,f]azepine (17.6 g, 90 mmol), N,N-dimethylaniline (25 ml) and toluene (150 ml) was heated at reflux temperature under stirring for 14 h. The mixture was decanted and to the remaining solid 10% ammonia (100 ml) and chloroform (150 ml) were added. The phases were separated and the combined toluene and chloroform phases were dried (K2CO3) and evaporated in vacuo. The residue was purified by chromatography on silica gel (300 g) using benzene and ethyl acetate as eluents. The crude base was crystallised from cyclohexane, yielding 13.0 g (36%) of 4-((10,11-dihydro-5H-dibenz[b,f]azepin-5-yl)carbonyl)-1-benzylpiperidine.

1. temperaturewas heated
2. temperatureat reflux temperature
3. customThe mixture was decanted and to the remaining solid 10% ammonia (100 ml) and chloroform (150 ml)
4. additionwere added
5. customThe phases were separated
6. dry with materialthe combined toluene and chloroform phases were dried (K2CO3)
7. customevaporated in vacuo
8. customThe residue was purified by chromatography on silica gel (300 g)
9. customThe crude base was crystallised from cyclohexane