Hydrochloric Acid → N-Cbz-6-allyl-2,3-dihydro-1H-pyridin-4-one

참여 물질

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To a solution of 4-methoxypyridine (50 mL, 0.492 mol) in toluene (1 L) is added benzyl chloroformate (70.3 mL, 0.492 mol) at 0° C. The resulting mixture is stirred at 0° C. for 30 minutes then cooled to −75° C. and allyl magnesium chloride (295.5 mL, 0.591 mol) is added. The solution is held at −75° C. for 4 hours and allowed to warm to 0° C. at which point a solution of 20% HCl is added to quench the reaction. The organic layer is isolated and purified over silica gel to yield the desired product.

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