Phenol, 4-methoxy-2-nitro- → HCID 117699259, compound

Participants

Reaction Steps

tert-Butyl 4-(2-amino-4-methoxyphenylamino)phenylcarbamate (500 mg, 1.52 mmol) synthesized in the same manner as that of Example 1 by using 4-methoxy-2-nitrophenol as the starting material was dissolved in anhydrous tetrahydrofuran (30 mL), and the solution was added dropwise with malonyl chloride (0.178 mL, 1.82 mmol) on an ice bath. The mixture was stirred at room temperature for 16 hours. After completion of the reaction, the reaction mixture was added with saturated aqueous sodium hydrogencarbonate, the aqueous layer was extracted with chloroform, the organic layer was dried over sodium sulfate, and then the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (chloroform/methanol=100/1) to give the title compound (230 mg, yield 38%).

Provenance & Evidence