2-Ethylaniline → HCID 19369810, compound

Participants

Reaction Conditions

Reaction Steps

4-Oxo-6-trifluoromethoxy-2,3,4,5-tetrahydrofuro[3,2-c]quinoline(7.0 g, 25.8 mmol) was dissolved in diethylene glycol(30 ml) and 2-ethylaniline(6.7 g, 51 mmol) was added under nitrogen. The reaction mixture was refluxed at 250° C. for 15 hours. The reaction mixture was diluted in brine(20 ml), then the aqueous layer was extracted with dichloromethane(15 ml) for 3 times. The organic layer was washed with water(15 ml) for 3 times, dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The residue was purified by silica gel chromatography with ethyl acetate as eluent to obtain 5.1 g of desired compound as solid in 53% of yield.

Provenance & Evidence