Hydrochloric Acid → HCID 10038811, compound

Participants

Reaction Steps

In a flask made of glass equipped with a stirrer, a thermometer, a reflux condenser and a dropping funnel and having an inner volume of 100 ml were charged 8.29 g (60.0 mmol) of potassium carbonate, 30 ml of acetonitrile, 8.09 g (60.0 mmol) of dimethyl malonate with a purity of 99% and 5.00 g (30.0 mmol) of 2,4-difluoronitrobenzene with a purity of 98% under argon atmosphere, and under stirring, the mixture was reacted at 70° C. for 10 hours. After completion of the reaction, the mixture was cooled to room temperature, 50 ml of toluene was added to the mixture, and 7.5 ml (90 mmol) of 12 mol/l hydrochloric acid was gradually added dropwise to the mixture while stirring. Then, the organic layer was separated, and washed successively with 20 ml of water and 20 ml of a saturated saline solution in this order, and dried over anhydrous magnesium sulfate. After filtration, this organic layer was analyzed (absolute quantitative method) by high performance liquid chromatography, it was found that 6.61 g (reaction yield: 81%) of dimethyl 2-(5-fluoro-2-nitrophenyl)malonate was formed.

Provenance & Evidence