Manufacture of pent-4-en-1-al
AssigneeBASF SE
InventorsRudolf Kummer, Kurt Schwirten, Hans-Dieter Schindler, deceased, by Ute Lang nee Schindler, heir-at-law, by Rainer Schindler, heir-at-law
Life of this patent
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Abstract
Pent-4-en-1-al is manufactured by passing an acetaldehyde-acetal of the general formula ##STR1## where R is allyl or alkyl of 1 to 3 carbon atoms, in the gas phase and at from 350.degree. to 450.degree. C, over an active-surface catalyst.
Claims6
A process for the manufacture of pent-4-en-1-al, wherein an acetaldehyde-acetal of the general formula ##STR3## where R is allyl or alkyl of 1 to 3 carbon atoms, is passed in the gas phase and at from 350.degree. to 450.degree. C, over a non-oxidizing, active-surface, particulate catalyst selected from the group consisting of activated carbon, coke, pumice, silica, aluminum oxide, titanium dioxide, zinc oxide and aluminum oxide on which a thin layer of carbon has been applied.
Dependencies are inferred from the claim text.