Hydrochloric Acid → 3-(5-Cyano-3'-trifluoromethyl-[2,2']bipyridinyl-6-yl)-2-oxo-propionic acid ethyl ester

Participants

Reaction Conditions

Reaction Steps

Dissolve 6-methyl-3′-trifluoromethyl-[2,2′]bipyridinyl-5-carbonitrile (150 mg, 0.570 mmol) and diethyl oxalate (150 mg, 1.03 mmol) in a solution of EtOH (2 mL) and 17% NaOEt in EtOH (0.6 mL, 1.71 mmol). Warm the mixture to 50° C. and stir overnight. Pour the mixture onto ice water (50 mL) and acidify with 3 N HCl. Extract with EtOAc (3×50 mL). Dry the combined organic extracts over Na2SO4 and remove the solvent under reduced pressure. Purify the crude product using silica gel chromatography eluting with EtOAc/hexane (1:1) to yield the title compound. MS 364.11 (M+1).

Provenance & Evidence