Dimethylformamide → HCID 86735877, compound

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Reaction Steps

A mixture of 4-phenyl-4,5,6,7-tetrahydro-thieno[2,3-c]pyridine (6 g; 0.028 mole) (Example 3), o.cyanobenzyl bromide (5.9 g; 0.03 mole) and solid potassium carbonate (5.8 g; 0.042 mole) in dimethylformamide (100 ml) is heated at 70° C during 2 hours. After cooling, the precipitate is filtered and the solvent is evaporated off under reduced pressure. The residue is taken up into water and extracted with ether. The organic extracts are washed with water, dried over sodium sulfate, filtered through a silica bed and evaporated to dryness. The residue is recrystallized from cyclohexane: M.p. = 124° C (Yield: 67%).

Provenance & Evidence