Butanal → HCID 57142801, compound

Participants

Reaction Steps

To a mixture of 225 g of a 40% strength by weight aqueous solution of dimethylamine and 120 g of acetic acid was added with stirring and cooling, in the course of 15 min, a solution of 204 g of acetoxyacetaldehyde in 288 g (4 mol) of n-butyraldehyde, and the reaction mixture was subsequently stirred at 50° C. for 30 min. The reaction solutions were cooled down and the aqueous catalyst solution separated off to give, by fractional distillation, 169 g of 4-acetoxy-2-ethyl-2-butenal (b.p.=83°-93° C./6 mbar), corresponding to a yield of 54% of theory, based on acetoxyacetaldehyde, and 181 g of 2-ethyl-2-hexanal (b.p.=38°-70° C./20-60 mbar).

Provenance & Evidence