Hydrochloric Acid → HCID 18316935, compound

Participants

Reaction Conditions

Reaction Steps

A 500 ml 3-necked round bottom flask was equipped with a large magnetic stirrer, thermometer and hypochlorite scrubber. 8-(2,2,2-Trifluoroethyl)-8-azabicyclo[3.2.1]octan-3-one (10.56 g, 50 mmol) was charged to the reaction flask followed by hydrochloric acid (5M, 100 ml) and the mixture was cooled to 0° C. Diethyl ether (71 g) was added and the mixture stirred for 5 minutes after which potassium cyanide (36.9 g, 550 mmol) was charged to the stirred reaction mixture portionwise over 0.5 hour. After complete addition, the resultant pink mixture was stirred for 3 hour at about 3° C. The pH of the mixture was adjusted to pH5 with hydrochloric acid (5M), water (50 ml) was added and the organic layer separated. The aqueous phase was extracted with diethyl ether (2×100 ml), and the combined organic extracts dried (Na2SO4) to leave a solution of 3-cyano-3-hydroxy-8-(2,2,2-trifluoroethyl)-8-azabicyclo[3.2.1]octane in diethyl ether (328 ml). A sample of this solution (45 ml) was used directly in Step 2.

Provenance & Evidence