Preparation of .alpha.,.beta.-unsaturated carboxylic acids and e

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof

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562495, 562510, C07C 5100

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active

058081488

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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M. Ai, Appl. Catal., 48, 51 (1989, primarily catalyst preparation).
M. Ai, J. Catal., 113, 562 (1988, primarily catalyst preparation).
CA, XP002057753--Abstract 96:7111.
CA 99:175185 (1983).

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