Diisobutylaluminumhydride → HCID 86691853, compound

Participants

Reaction Conditions

Reaction Steps

Methyl 3-[1-(2,2-dimethylpropyl)-3-methyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-5-yl]-4-methylbenzoate (15-4) (570 mg, 1.6 mmol, 1.0 eq.) was dissolved in dry THF (6.2 mL) and cooled to −78° C. Diisobutylaluminum hydride (6.2 mL, 6.2 mmol, 4.0 eq, 1M in heptane) was carefully added under nitrogen. The resulting mixture stirred at −78° C. for 10 minutes. The reaction was warmed to 0° C. and quenched with a saturated solution of Rochelle's Salt (5 mL). The resulting mixture was warmed to ambient temperature and stirred for 2 hours. The mixture was then extracted with ethyl acetate and the combined organics were washed with water and brine, dried over magnesium sulfate, filtered and concentrated to afford 1-(2,2-dimethylpropyl)-5-[5-(hydroxymethyl)-2-methylphenyl]-3-methyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (51-1) as a white solid. MS (M+H)+: observed=340.2021, calculated=340.2020.

Provenance & Evidence