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US 4,052,401 AGranted
Production of 3-(1',3'-dioxane)-propionaldehyde compounds
AssigneeCelanese Corporation
InventorOscar Richard Hughes
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Abstract
This invention provides a process for producing 2-vinyl-1,3-dioxane compounds rapidly and efficiently by contact of a mixture of acrolein and a 1,3-propanediol compound with solid cation exchange resin in acid form. There is further provided a process for conversion of acrolein into 3-(1',3'-dioxane)propionaldehyde derivatives.
Claims2
A process for producing 3-(1',3'-dioxane)-propionaldehyde compounds which comprises (1) forming a liquid feed mixture of acrolein and a diol compound of the formula:
- ##STR3## wherein R is hydrogen or methyl;
- (2) passing the acrolein-diol feed mixture through a fixed bed of perfluoro sulfonic acid cation exchange resin in acid form, at a liquid hourly space velocity between about 0.1 and 50 and a reaction temperature in the range between about 10.degree. C and 60.degree. C, to yield an effluent mixture containing 2-vinyl-1,3-dioxane product;
- and (3) subjecting the effluent mixture to hydroformylation conditions to produce 3-(1'3'-dioxane)propionaldehyde corresponding to the formula:
- ##STR4## wherein R is hydrogen or methyl.
1 more element
Dependencies are inferred from the claim text.