Methanol → N-(2-Bromo-4-hydroxy-6-methylphenyl)-3-nitrobenzamide

Participants

Reaction Conditions

Reaction Steps

N-(2-bromo-6-methyl-4-pivaloyloxyphenyl) 3-nitrobenzamide and an aqueous solution of sodium hydroxide were added to methanol, and the resulting mixture was stirred at 70° C. for 3 hours. The solvent was removed under a reduced pressure to obtain a residue. The resulting residue was dissolved in ethyl acetate, washed with aqueous 2N hydrochloric acid solution, and then dried over anhydrous magnesium sulfate. The solvent was removed under a reduced pressure. The resulting residue was purified by silica gel column chromatography (n-hexane:EtOAc=1:1) to obtain N-(2-bromo-6-methyl-4-hydroxyphenyl) 3-nitrobenzamide. Then, the desired title product was prepared according to the conditions as described in Example 1-3 (Yield: 97%).

Provenance & Evidence