Ethyl pyruvate → HCID 62214851, compound

Participants

Reaction Conditions

Reaction Steps

4-Iodopyridine (15.0 g, 73 mmol) was taken up in dry THF (600 mL) and cooled to 0° C. and then ethylmagnesium bromide (3M solution in THF, 41.8 mL) was gradually added, maintaining the temperature at 0° C. over the period of 30 mins. To the above reaction mixture was then added a solution of ethyl 2-oxopropanoate (12.13 g, 104 mmol) in THF (100 mL). The reaction mixture was stirred at 0° C. for 1 hr. The reaction progress was monitored by TLC using solvent system MeOH:DCM (5:95). After completion of reaction, the reaction mixture was quenched with ice-cold water and extracted with EtOAc (3×1 Lit). The combined organic layers were dried over Na2SO4, and concentrated under vacuum. The crude product residue was combined with a batch of crude product obtained from a second reaction carried out at the same scale, and was purified by column chromatography using silica (100-200 mesh) and solvent system EtOAc:Hexane (4:6) to obtain 7 g (25%) of ethyl 2-hydroxy-2-(pyridin-4-yl)propanoate as a yellow solid. 1H NMR (400 MHz, DMSO-d6): δ 8.52 (d, 2H, J=6 Hz), 7.44 (d, 2H, J=6 Hz), 6.2 (s, 1H), 4.08 (q, 2H, J=7.2 Hz), 1.60 (s, 1H), 1.12 (t, 3H, J=7.2 Hz); LC-MS m/z calculated for [M+H]+ 196.09. found 196.2.

Provenance & Evidence