反应详情

To a solution of N,N-Dimethyl-6-chloro-2-hydroxy-3-nitrobenzenesulfonamide (550 mg, 1.96 mmol) in ethyl acetate, was added 10% Pd/C (550 mg). The mixture was flushed with argon, and then stirred under a hydrogen atmosphere at balloon pressure for 3 hours at room temperature. TLC showed the reaction was not complete. The mixture was filtered through celite and the celite was washed with methanol. The mixture was retreated under the same conditions as mentioned above. After 3 hours, the solvent was evaporated to give the desired product (480 mg, 98%). EI-MS (m/z) 250.82, 252.87 (M+).

1. customThe mixture was flushed with argon
2. filtrationThe mixture was filtered through celite
3. washthe celite was washed with methanol
4. waitAfter 3 hours
5. customthe solvent was evaporated