反应 #97264
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US04766125
反应条件: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: A mixture of 4.05 parts of 2-chloro-N-(2,6-dichlorophenyl)acetamide, 5.6 parts of 1-[4,4-bis(4-fluorophenyl)butyl]-2-piperazinecarboxamide, 2.94 parts of N,N-diethylethanamine and 63 parts of N,N-dimethylformamide was stirred for 5 hours at 70° C. The reaction mixture was poured onto ice-water. The precipitated product was filtered off and dissolved in dichloromethane. The solution was washed with water, dried, filtered and evaporated. The residue was purified by column-chromatography over silica gel using a mixture of trichloromethane and methanol (95:5 by volume) as eluent. The pure fractions were collected and the eluent was evaporated. The residue was converted into the hydrochloride salt in 2-propanone and 2-propanol. The salt was filtered off and stirred for 30 minutes in 1,1'-oxybisethane, yielding 4.54 parts of 3-(aminocarbonyl)-4-[4,4-bis(4-fluorophenyl)butyl]-N-(2,6-dichlorophenyl)-1-piperazineacetamide dihydrochloride monohydrate; mp. 182.7° C. (compound 72). The reaction mixture was poured onto ice-water The precipitated product was filtered off dissolved in dichloromethane The solution was washed with water dried filtered evaporated The residue was purified by column-chromatography over silica gel using a mixture of trichloromethane and methanol (95:5 by volume) as eluent The pure fractions were collected the eluent was evaporated The salt was filtered off stirred for 30 minutes in 1,1'-oxybisethane
来源 ID: ord-ee4360a5bfb845cdbeffa88fa4d6812b