Sodium Methoxide → HCID 21340579, compound

Participants

Reaction Steps

Sodium methoxide in methanol (23.7 mL of a 0.5M solution, 11.8 mmol) was added to a suspension of 3-(2-acetoxy-ethyl)-4-bromo-8-nitro-naphthalene-1-sulfonamide (4.70 g, 11.3 mmol) in methanol (33 mL). The mixture was stirred under a nitrogen atmosphere at room temperature for 90 minutes, then concentrated under vacuum to approximately half volume, diluted with ethyl acetate (200 mL), and washed with 2N hydrochloric acid. The organic solution was washed with water (100 mL) and brine (50 mL), dried over magnesium sulfate, filtered, and left to stand at room temperature. The organic solution deposited a solid which was collected by filtration, washed with ethyl acetate (2×15 mL), and vacuum dried to give the title compound (1.78 g). Additional product (1.88 g) was obtained from the mother liquors after concentration under vacuum and crystallization from diethyl ether.

Provenance & Evidence