反应详情

19 g of methylphosphonium bromide is suspended in dried THF under protective gas, and 6 g of potassium tert-butoxide are added in portions at 0° C. An immediate colour change to orange occurs. 14 g of N,N-diphenyl-p-aminobenzaldehyde are added to the reaction solution at 0° C. The mixture is warmed to room temperature and stirred for a further 20 hours. The solvent is stripped off in vacuo, the residue is taken up in dichloromethane, and the solution is extracted with water dried over magnesium sulfate, filtered, and the solvent is stripped off in vacuo.

1. additionare added in portions at 0° C
2. extractionthe solution is extracted with water
3. dry with materialdried over magnesium sulfate
4. filtrationfiltered