反应详情

A clear solution of 6-(hydroxymethyl)-2-methoxy-4-methylnicotinonitrile (0.50 g, 2.81 mmol) in HOAc (5 mL) and Ethanol (20 mL) was treated on an H-Cube apparatus (50 psi, 40° C., 1 mL/min., Raney Nickel cartridge) for 18 hr overnight. LCMS showed that the reaction was complete (crude contained 57% product and 43% dimeric side product). The reaction was evaporated to dryness under vacuum. Purified by silica gel chromatography (Analogix, SF25-40 g, 0 to 12% (5% NH4OH in MeOH) in CH2Cl2) (step gradient to 8% to elute off the dimeric side product then to 12% to elute off the product). The pure fractions were combined and evaporated to dryness under vacuum to give the product (5-(aminomethyl)-6-methoxy-4-methylpyridin-2-yl)methanol (0.30 g, 1.646 mmol, 58.7% yield) as a white solid. MS(ES)+ m/e 183.1 [M+H]+, 166.1 [M+H]+-NH3.

1. customThe reaction was evaporated to dryness under vacuum
2. customPurified by silica gel chromatography (Analogix
3. washSF25-40 g, 0 to 12% (5% NH4OH in MeOH) in CH2Cl2) (step gradient to 8% to elute off the dimeric side product
4. washto 12% to elute off the product)
5. customevaporated to dryness under vacuum