Hydrochloric Acid → HCID 68524570, compound

Participants

Reaction Steps

To a solution of 6-bromo-pyridin-3-ol (5.0 g, 28.7 mmol) in anhydrous THF (75 mL) and anhydrous toluene (40 mL) at −78° C. was added n-butyllithium (2.5 M in hexane, 28.73 mmol). The mixture was stirred for 20 min. A solution of sec-butyllithium (1.4 M in cyclohexane, 43.1 mmol) was added dropwise and the mixture stirred at −78° C. for 1 hour. To the mixture was added cyclohexanone (4.23 g, 43.1 mmol) in THF (25 mL) at −78° C. and the mixture stirred at −78° C. for 1 hour. Saturated NaH2PO4 solution (10 mL) was slowly added to the mixture and the mixture then warmed to room temperature. Water (300 mL) was added. The reaction mixture was neutralized with hydrochloric acid (2N), and the mixture extracted three times with EtOAc. The organic layer was washed with brine and dried (Na2SO4). Silica gel chromatography (EtOAc/heptane) provided 2.63 g of the title compound. C11H15NO2 (193.11), LCMS (ESI): 194.09 (M++H).

Provenance & Evidence