反应详情

A mixture of 5.8 g of 4-[4,4-bis(4-fluorophenyl)butyl]-N-methyl-2-piperazine-carboxamide, 3.6 g of 2-chloro-N-(2,4,6-trimethylphenyl)acetamide, 2.12 g of sodium carbonate and 150 ml of MIK is stirred and refluxed for 18 hours. The reaction mixture is cooled and washed with water. The organic phase is dried, filtered and evaporated. The residue is purified by column-chromatography over silica gel using a mixture of trichloromethane and methanol (95:5 by volume) as eluent. The pure fractions are collected and the eluent is evaporated. The residue is dried, yielding 4.34 g of 4-[4,4-bis(4-fluorophenyl)butyl]-2-[(methylamino)carbonyl]-N-(2,4,6-trimethylphenyl)-1-piperazineacetamide (compound 2, mp. 90.2° C.).

1. temperaturerefluxed for 18 hours
2. temperatureThe reaction mixture is cooled
3. washwashed with water
4. customThe organic phase is dried
5. filtrationfiltered
6. customevaporated
7. customThe residue is purified by column-chromatography over silica gel using
8. additiona mixture of trichloromethane and methanol (95:5 by volume) as eluent
9. customThe pure fractions are collected
10. customthe eluent is evaporated
11. customThe residue is dried