反应详情

温度

0 °C

7 Parts of the preceding acetonitrile is dissolved in a solution of 67 parts by volume of concentrated sulfuric acid and 3 parts by volume of water. The resulting solution is heated on a steam bath for about 2 hours and then cooled to about 0° C. and made alkaline by the addition of diluted sodium hydroxide. The alkaline solution is extracted with ether, the ether extract dried over calcium sulfate, stripped of solvent and the residue crystallized from pentane to afford α-(o-fluorophenyl)-α-[2-(diisopropylamino)ethyl]-α-[2-(2-methyl-1-piperidinyl)ethyl]acetamide, melting at about 90°-91° C. This compound has the following structural formula ##STR30##

1. temperatureThe resulting solution is heated on a steam bath for about 2 hours
2. extractionThe alkaline solution is extracted with ether
3. extractionthe ether extract
4. dry with materialdried over calcium sulfate
5. customthe residue crystallized from pentane