Octanal → 2-Methylene-octanal

Participants

Reaction Steps

100 G (0.78 mmol) of n-octanal, 73 g of 36% formic aldehyde and 260 g (0.78 mol) of catalyst (aqueous diethylamine chlorhydrate; 3 mol/kg) were charged in a 3-neck flask. The mixture was heated to reflux for 1 h and distilled. The reaction product was extracted with ether, dried and concentrated to give 42.41 g of 2-hexyl-2-propenal. Extraction of the flask's residue provided yet 64 g of raw product. The aldehyde was used as such in the next step.

Provenance & Evidence