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

Patent ·
OSTI ID:871845
 [1];  [2];  [3]
  1. Durham, NC
  2. Cary, NC
  3. Kingsport, TN
+ Show Author Affiliations
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.
Research Organization:
RESEARCH TRIANGLE INSTITUTE
DOE Contract Number:
AC22-94PC94065
Assignee:
Eastman Chemical Company (Kingsport, TN)
Patent Number(s):
US 5808148
OSTI ID:
871845
Country of Publication:
United States
Language:
English

References (8)

Vapor-phase aldol condensation of formaldehyde with acetic acid on V2O5$z.sbnd;P2O5 catalysts journal September 1987
Vapor-Phase Aldol Condensation of Formaldehyde with Propionic Acid on Vanadium Pentoxide—Phosphorus Pentoxide journal January 1988
Reaction of propionic acid with methylal over vanadium-silicon-phosphorus oxide journal January 1990
The production of methacrylic acid by the vapor-phase aldol condensation of propionic acid with formaldehyde journal July 1990
The Production of Methacrylic Acid by the Vapor-Phase Aldol Condensation over V–Si–P Ternary Oxide Catalyst journal April 1990
Reaction of Methyl Propionate with Methylal over V–Si–P Ternary Oxide Catalysts journal December 1990
Effects of organic compounds used in preparing V/Ti binary phosphate catalysts journal October 1988
Preparation of high-surface-area titanium-vanadium binary pyrophosphate catalysts journal March 1989

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Related Subjects

-unsaturated
-unsaturated carboxylic
/999/
acid
acids
alpha
anhydride
beta
carboxylic
carboxylic acid
carboxylic acids
catalyst
catalyst comprising
comprises
comprises contacting
comprising
contacting
contacting formaldehyde
disclosed
ester
esters
formaldehyde
niobium
oxide
preparation
presence
process
source