Hydrochloric Acid → 1-(3-Hydroxy-2-oxo-butyl)-2-oxo-6-m-tolyl-4-trifluoromethyl-1,2-dihydro-pyridine-3-carbonitrile

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Reaction Steps

1-(3-Methoxymethoxy-2-oxo-butyl)-2-oxo-6-m-tolyl-4-trifluoromethyl-1,2-dihydro-pyridine-3-carbonitrile (0.191 g, 0.47 mmoles) was dissolved into 25 mL of anhydrous MeOH and to this solution was added HCl (2.0 M solution in diethyl ether, 5.0 mL). The mixture was then stirred at room temperature for 2 hours. After this period the reaction mixture was evaporated in vacuo and was purified using flash silica chromatography (0-60% EtOAc/Hexane) to yield 0.16 g (93% yield) of 1-(3-Hydroxy-2-oxo-butyl)-2-oxo-6-m-tolyl-4-trifluoromethyl-1,2-dihydro-pyridine-3-carbonitrile as a yellow residue. 1H-NMR (CDCl3): δ7.42-7.35 (m, 2H), 7.14-7.08 (m, 2H), 6.50 (m, 1H), 5.06 (d, J=17.2 Hz, 1H), 4.92 (d, J=17.2 Hz, 1H), 4.39-4.31 (m, 1H), 3.48 (bs, 1H), 2.40 (s, 3H), 1.28 (d, J=6.8 Hz, 3H).

Provenance & Evidence