Hydrochloric Acid → N-(2-methoxy-5-nitrophenyl)methanesulfonamide

참여 물질

반응 단계

To a solution of 2-methoxy-5-nitroaniline (5 g) in pyridine (25 ml) at 0° C. was added dropwise methanesulfonyl chloride (3.5 ml) then pyridine (0.5 ml). The mixture was left at 0° C. for 1 hour, then brought to RT for 2 h. The mixture was poured onto ice (100 g) and dilute hydrochloric acid (3M, 100 ml), the solid formed was filtered then washed with water to give 2-Methoxy-5-nitro-methanesulfonylaminobenzene (5.2 g, 71%) as an off-white crystalline solid.

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