Methyl 5-methylpicolinate → (5-Methylpyridin-2-yl)methanol

関与物質

反応手順

Sodium borohydride (4.5 g, 115. mmol) was added to a solution of methyl 5-methylpicolinate (6.0 g, 39.5 mmol) in THF (60 mL) and methanol (6 ml) at RT. The reaction mixture was stirred at RT for 2 h (the reaction was monitored by TLC). The mixture was concentrated under reduced pressure and the residue was diluted with water and extracted with EtOAc. The combined organics were dried over sodium sulfate, filtered and concentrated under reduced pressure. The organic layer was concentrated under vacuo to afford (5-methylpyridin-2-yl)methanol (3.5 g, 72.9%) as an off-white solid. 1H NMR: 200 MHz, CDCl3: δ 8.5 (s, 1H), 7.7 (d, 1H), 7.15 (d, 1H), 5.0 (s, 3H), 3.4 (s, 3H). MS: [M+H]+: m/z=124.0.

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