反应详情

A solution of p-methyl-N-methylaniline (5.00 g) and triethylamine (5.05 g) in dichloromethane (140 ml) was cooled to 0° C. and methanesulphonyl chloride (4.73 g) was added dropwise. The reaction mixture was stirred at ambient temperature for 2 hours and quenched with water (100 ml). The organic phase was washed with 2N aqueous hydrochloric acid solution (75 ml) and 2N aqueous sodium hydroxide solution (75 ml), dried (MGSO ) and the solvent removed by evaporation. Thus was obtained N-methyl-(4-tolyl)methanesulphonamide (5.3 g, 65%), m.p. 49°-52° C.

1. customquenched with water (100 ml)
2. washThe organic phase was washed with 2N aqueous hydrochloric acid solution (75 ml) and 2N aqueous sodium hydroxide solution (75 ml)
3. customdried (MGSO )
4. customthe solvent removed by evaporation