Potassium Carbonate → HCID 131720616, compound

Participants

Reaction Steps

To a solution of 400 mg (1.2 mmol) of 6-hydroxycinchonane (1) in 25 ml of anhydrous acetone (dried and distilled over potassium carbonate) and 5 ml of anhydrous dimethylformamide was added 267 mg (1.93 mmol) of anhydrous potassium carbonate followed by 129 ml (0.87 mmol) of 4-bromobutyronitrile and a catalytic amount (3 mg) of 18-crown-6. The reaction mixture was heated to reflux for 18 h, cooled and filtered. The filtrate was concentrated under reduced pressure and redissolved in 200 ml of chloroform. The organic layer was washed with 2×50 ml of 5% aqueous sodium hydroxide, washed with brine, dried using anhydrous magnesium sulfate and yielded 310 mg (0.82 mmol, 66%) of (9S)-4-[(9-hydroxycinchonan-6'-yl)oxy]butanenitrile (2) as pale yellow solids. MS, IR and NMR data confirmed the identity of the compound.

Provenance & Evidence