反应详情

A solution of phenylacetyl chloride (1.07 g, 6.6 mmol) in dry benzene (7 ml) was added drop by drop for 10 minutes to a cooled solution of 2,5-dimethoxyaniline (1 g, 6.5 mmol) in dry benzene (7 ml). The reaction mixture was agitated at room temperature for 1 hour and then the reaction was stopped with cold 24% aqueous sodium carbonate (10 ml.) After vigorously agitating the two-phase system for 30 minutes, the benzene layer was separated and the aqueous phase was extracted with ether (3×50 ml). The combined organic layers were dried over sodium sulfate and evaporated and the residue was crystallized from petroleum ether, yielding 1.61 g 91%) of N-(2',5'-dimethoxyphenyl)-2-phenylacetamide. m.p. 85° C. (petroleum ether).

1. stirringAfter vigorously agitating the two-phase system for 30 minutes
2. customthe benzene layer was separated
3. extractionthe aqueous phase was extracted with ether (3×50 ml)
4. dry with materialThe combined organic layers were dried over sodium sulfate
5. customevaporated
6. customthe residue was crystallized from petroleum ether