HCID 57312439, compound → HCID 57309100, compound

Participants

Reaction Conditions

Reaction Steps

A stirred suspension of copper (I) cyanide (0.66 g, 7.4 mmol) and 1-(6-bromo-3-pyridyl)carbonyl-4-piperidone ethylene ketal (2.2 g, 6.7 mmol, prepared as in Example V from 6-bromo-3-pyridinecarboxylic acid) in DMF (30 ml) was heated at 150° C. for 3 h. The mixture was cooled, diluted with water, extracted with ethyl acetate, dried over sodium sulphate and evaporated. Purification by flash chromatography on silica, eluting with 20% ethyl acetate/hexane, gave a white crystalline solid (0.96 g, 52%), m.p. 133°-135° C.

Provenance & Evidence