Hydrochloric Acid → 1-(5-Bromopyrimidin-2-yl)-4-methylpiperidine-4-carboxylic acid

Participants

Reaction Conditions

Reaction Steps

Ethyl 1-(5-bromopyrimidin-2-yl)-4-methylpiperidine-4-carboxylate (400 mg, 1.22 mmol) was stirred in dioxan (4 ml) and concentrated hydrochloric acid was added (2.8 ml). The reaction was stirred in a sealed tube at 100° C. for 5 h. LCMS indicated 90% conversion to the acid. The reaction was allowed to cool, diluted with a saturated aqueous solution of sodium hydrogen carbonate to adjust the pH to ˜5 at which point a solid precipitated. The solid was collected by filtration and dried to afford the desired product as a yellow solid (270 mg, 90% purity by LCMS) (77%).

Provenance & Evidence