| abstract |
1461832 Purifying acetoxybutyraldehydes GENERAL ELECTRIC CO 9 May 1974 [21 June 1973] 20492/74 Heading C2C 2 - Methyl - 3 - acetoxypropionaldehyde is eliminated from an isomeric mixture of 4- and 2-acetoxybutyraldehydes and 2-methyl-3-acetoxypropionaldehyde by heating the mixture in the presence of a catalyst which is a tertiary amine, a silica, an alumina, a mixture of silica and alumina or a zeolite, to decompose the 2- methyl-3-acetoxypropionaldehyde to acetic acid and methacrolein and removing these. The isomeric mixture may be obtained by hydroformylation of allyl acetate (Specification 1,461,831). |