反应详情

To a cold suspension of 4-aminophenol (5.45 g, 49.9 mmol) in MeOH (62 ml), methanesulfonyl chloride (1.95 ml, 25.2 mmol) was added under stirring maintaining the temperature between 10 and 15° C. The resulting solution was allowed to warm to RT and stirred for 2 hours. The solvent was removed under vacuum, and the residue was suspended in HCl 1N (62 ml); the insoluble was collected by filtration, washed with water, dried and purified by filtration through a silica gel pad (DCM:MeOH=100:15) affording N-(4-hydroxyphenyl)methanesulfonamide as a brown solid (1.35 g, 7.21 mmol, 28.6% yield).

1. additionwas added
2. temperaturemaintaining the temperature between 10 and 15° C
3. stirringstirred for 2 hours
4. customThe solvent was removed under vacuum
5. filtrationthe insoluble was collected by filtration
6. washwashed with water
7. customdried
8. filtrationpurified by filtration through a silica gel pad (DCM:MeOH=100:15)