Benzaldehyde → 5337-53-1

Participants

Reaction Steps

To solution of 2-acetylpyridine 1a (10 mmol, 1 equiv.) and tetrahydrofuran (25 mL) is added benzaldehyde 1b (10 mmol, 1 equiv.). Sodium methoxide (12 mmol, 1.2 equiv.) in methanol (24 mL, 0.5M) is introduced into the reaction and is agitated for 15 hours at room temperature. Hydrochloric acid (1N) is added until a neutral pH is obtained. The solution is extracted with dichloromethane twice, and washed once with water. The combined organic layers are dried over MgSO4, and concentrated under reduced pressure. The residue is purified by flash column chromatography on SiO2 (33% ethyl acetate/hexanes) to give the 3-phenyl-1-pyridin-2-yl-propenone 1c as a pale yellow solid. See Hollinshead, S. P., Tetrahedron Letters, Vol 37, pp. 9157-9160 (1996).

Provenance & Evidence