Acetic Acid → HCID 19804299, compound

Participants

Reaction Steps

6.0 g (0.15 mol) of sodium hydroxide were added to a solution of 160.5 g (1.5 mol) of pyridine-3-carbaldehyde in 750 ml of methanol. Thereafter, 150.0 g (1.5 mol) of hexanal were added dropwise in the course of 3 hours at room temperature. Stirring was carried out for 1 hour, the pH was brought to 6 with acetic acid and the solvent was then evaporated under reduced pressure. The residue was taken up in a water/dichloromethane mixture and the organic phase was washed with water, dried over sodium sulfate and evaporated down under reduced pressure. Distillation gave 190 g (67% of theory) of E-2-(3-pyridylmethylidene)-hexanal as a yellow oil of boiling point 132°-134° C./2 mbar.

Provenance & Evidence