Process for the production of 2-(alkoxymethyl)acrolein
AssigneeDegussa AG
InventorsMathias Hoepp, Klaus Koehler, Dietrich Arntz
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Abstract
2-(Alkoxymethyl)acrolein of the formula ##STR1## is produced from acrolein, an alcohol ROH and formaldehyde, in one step, with a good yield being obtained. The acrolein is reacted with a substantially equimolar quantity of a source of formaldehyde in the presence of at least an equimolar quantity of the alcohol ROH and a catalytic quantity of a catalyst system based on a secondary amine and a mineral acid at a pH value of the reaction mixture in the range of 1 to less than 7.
Claims24
A process for the production of 2-(alkoxymethyl)acrolein of the formula I ##STR3## wherein R signifies an alkyl group with 1 to 6 C atoms or an alkoxyalkyl group with a total of 3 to 6 C atoms, comprising reacting acrolein with a substantially equimolar quantity of a source of formaldehyde in the presence of at least an equimolar quantity of an alcohol of the formula ROH, wherein R has the same meaning as above, and a catalytic quantity of a catalyst system which is a secondary amine and a mineral acid at a pH value of the reaction mixture in the range of 1 to less than 7, in a single reaction step without separation of the intermediate 3-alkoxypropionaldehyde.
Dependencies are inferred from the claim text.