Sodium Bicarbonate → 1-(6-(Trifluoromethyl)pyridine-3-yl)propan-1-ol

Beteiligte Stoffe

Reaktionsschritte

Dissolve 6-trifluoromethyl-pyridine-3-carboxaldehyde (3.526 g, 20.136 mmol) in THF (50 mL). Add ethylmagnesium bromide (3.0 M in Et2O, 7.38 mL, 22.1 mmol) quickly. Stir 30 minutes. Pour the reaction mixture into a saturated NaHCO3 aqueous solution (100 mL). Extract with EtOAc (3×50 mL). Wash the combined organic extracts with a saturated NaCl aqueous solution (75 mL). Dry the organic extracts over Na2SO4; filter; collect the filtrate; and concentrate the filtrate under reduced pressure. Purify the residue by flash chromatography (Analogix® 40 g @ 40 mL/min) eluting with a gradient of EtOAc/hexanes (5% to 50%) over 30 minutes to give the title compound (2.01 g, 49% yield) as a yellow oil. 1H NMR (400.43 MHz, d6-DMSO) δ 8.66 (d, J=1.6 Hz, 1H), 7.95 (dd, J=1.9, 8.1 Hz, 1H), 7.81 (d, J=8.0 Hz, 1H), 5.47 (d, J=4.5 Hz, 1H), 4.60 (q, J=5.8 Hz, 1H), 1.65-1.59 (m, 2H), 0.79 (t, J=7.4 Hz, 3H).

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