Ethyl bromoacetate → ethyl 2-(6-nitro-2-oxo-3,4-dihydroquinolin-1(2H)-yl)acetate

Participants

Reaction Conditions

Reaction Steps

To a mixture of 6-nitro-3,4-dihydroquinolin-2(1H)-one (0.5 g, 2.6 mmol) and Cs2CO3 (1.70 g, 5.2 mmol) in DMF (5 mL) was added ethyl 2-bromoacetate (0.317 mL, 2.86 mmol). After stirring at 65° C. for 3 h, the mixture was diluted with H2O and EtOAc, organic layer was separated, and the aqueous layer was further extracted with EtOAc, organic layers were combined, dried over Na2SO4, and was concentrated in vacuo to provide ethyl 2-(6-nitro-2-oxo-3,4-dihydroquinolin-1(2H)-yl)acetate, which was used directly for next step.

Provenance & Evidence