Diethyl Malonate → HCID 67099548, compound

Participants

Reaction Steps

Diethyl malonate (5.68 mL, 37.6 mmol) was dissolved in ACN (75 mL) at 0° C. MgCl2 (3.93 g, 41.3 mmol) was added to the reaction mixture in one portion and TEA (10.5 mL, 75.1 mmol) was added dropwise. 2-(3-chloro-4-fluorophenyl)-2-methylpropanoic acid (7.73 g, 35.7 mmol) was converted to the acid chloride by reaction with thionyl chloride at 65° C. for 1 hour, and the resulting acid chloride was concentrated under reduced pressure. The acid chloride was then dissolved in ACN and added dropwise via addition funnel to the initial reaction mixture. The resulting mixture was stirred at ambient temperature for 2 hours and then quenched with water, acidified with 5N HCl, diluted with 100 mL of diethyl ether, added to a separatory funnel, partitioned with water, washed with water (2×50 mL), separated, dried over Na2SO4, and concentrated in vacuo to give the title compound (7.17 g) as a light yellow oil after flash chromatography. MS m/e=359 (M+H)+.

Provenance & Evidence