Ethyl 2-chloroisonicotinate → (2-Chloropyridin-4-yl)methanol

Participants

Reaction Steps

2.04 g of sodium borohydride are added portionwise to a solution of 1.7 g of ethyl 2-chloropyridine-4-carboxylate in 20 ml of ethanol, under an inert atmosphere of argon at a temperature in the region of 0° C. The reaction mixture is refluxed with stirring for 3 hours and then concentrated to dryness under reduced pressure. The residue thus obtained is taken up in dichloromethane and then washed with water. The organic phase is dried over magnesium sulfate, filtered and then concentrated to dryness under reduced pressure. 1 g of 2-chloro-4-(hydroxymethyl)pyridine is thus obtained.

Provenance & Evidence