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publicationDate 1998-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber US-5808148-A
titleOfInvention Preparation of α,β-unsaturated carboxylic acids and esters
abstract Disclosed is a process for the preparation of alpha , beta -unsaturated carboxylic acids and esters thereof which comprises contacting formaldehyde or a source of formaldehyde with a carboxylic acid, ester or anhydride in the presence of a catalyst comprising an oxide of niobium.
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