Dimethylformamide → HCID 58508922, compound

Participants

Reaction Steps

Under ice-cooling, 60% sodium hydride (54 mg) was added to an N,N-dimethylformamide (3.0 mL) solution of methyl 4-(2-(ethylamino)phenyl)-2-nitrobenzoate (0.27 g), followed by stirring at the same temperature for 5 minutes and then at room temperature for 15 minutes. Methyl iodide (0.083 mL) was added to the reaction mixture under ice-cooling, followed by stirring at room temperature for 1 hour and then at 50° C. for 1 hour. The reaction mixture was cooled to room temperature, and then methyl iodide (0.11 mL) was added thereto, followed by stirring at 40 to 50° C. for 2 hours. The reaction mixture was cooled to room temperature, and then water and diethyl ether were added thereto. The organic layer was separated, washed with a saturated aqueous solution of sodium bicarbonate and a saturated aqueous solution of sodium chloride sequentially, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography [eluent: 99-95% hexane/ethyl acetate] to obtain 0.12 g of methyl 4-(2-((ethyl)(methyl)amino)phenyl)-2-nitrobenzoate as a yellow oily substance.

Provenance & Evidence