反应详情

Reflux under an inert atmosphere for 190 hrs. a stirred suspension of 1.89 g. of erythro-α-(2-piperidyl)phenylmethanol, 2.25 g. of benzhydryl bromide, and 1.00 g. of potassium bicarbonate in 100 ml. of dry acetonitrile containing 14 ml. hexamethylphosphoramide. Cool to room temperature, pour into water, and extract with ether. Wash the extract successively with water and brine and dry over anhydrous sodium sulfate. Acidify the dry ether solution with 4.4 ml. of 1.9 M ethereal HCl. Filter and wash the resultant precipitate with acetone to obtain the analytically pure hydrochloride salt of the title compound, m.p. 232.5-234° dec.

1. temperatureReflux under an inert atmosphere for 190 hrs
2. additiona stirred suspension of 1.89 g
3. extractionextract with ether
4. washWash the
5. extractionextract successively with water and brine
6. dry with materialdry over anhydrous sodium sulfate
7. filtrationFilter
8. washwash the resultant precipitate with acetone