Hydrocarbonylation/carbonylation of alkyl carboxylates
Patent 4431835 Issued on February 14, 1984. Estimated Expiration Date: 
July 6, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 6, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSelective formation of ethanol from methanol, hydrogen and carbon monoxide Process for preparing esters from ethers or esters of lower homologous alcohols Ethanol from methanol Patent #: 4239924 InventorsAssigneeApplicationNo. 06/280218 filed on 07/06/1981US Classes:560/105, Carboxyl, not bonded directly to a ring, in acid moiety554/129, Phosphorus or sulfur containing material utilized554/130, Halogen containing material utilized560/1, Carboxylic acid esters560/103, Monocyclic acid moiety560/106, Ring in alcohol moiety560/122, Cyclopentyl-COOR, -C-COOR or -C-C-COOR560/123, Cyclobutyl in acid moiety560/124, Cyclopropyl in acid moiety560/232, Preparing esters by carbonylation560/254, Aromatic alcohol moiety560/265, Acyclic monohydric alcohol moiety562/400, Carboxylic acids and salts thereof562/406, Preparation by carbonylation562/493, Monocyclic562/496, Carboxyl, or salt thereof, not bonded directly to ring562/504, Cyclopentyl bonded to -COOR, -CCOOR, or -CCCOOR562/505, Cyclobutyl562/506, Cyclopropyl562/517, Preparation by carbonylation562/519, Of alcohol or alcoholate562/606, Saturated lower fatty acids562/607, Acetic acid per se or salt thereof568/428, Carbon monoxide reactant (e.g., carbonylation, etc.)568/484, Reactant contains -COO- group568/715, Benzene ring containing568/814, Preparing by reduction (e.g., by hydrogenation, etc.)568/876, Preparing from carbonyl containing compound568/885Catalyst utilizedExaminersPrimary: Garner, VivianAttorney, Agent or FirmInternational ClassesC07C 29/00 (20060101)C07C 29/32 (20060101) C07C 29/36 (20060101) C07C 51/12 (20060101) C07C 45/00 (20060101) C07C 51/10 (20060101) C07C 45/49 (20060101) Foreign Application Priority Data1980-08-07 FRAbstractAlkyl carboxylates are hydrocarbonylated and/or carbonylated with carbon monoxide and hydrogen, in an aqueous medium, and in the presence of a catalytically effective amount of a catalyst system comprising (i) ruthenium, (ii) cobalt, (iii) at least one iodine-containing promoter, and (iv) chromium. The subject hydrocarbonylation/carbonylation is admirably well suited, e.g., for the preparation of acetaldehyde, ethanol, ethyl acetate and acetic acid, especially from a methyl carboxylate.Field of SearchAromatic alcohol moietyPreparing esters by carbonylation Acyclic monohydric alcohol moiety Carboxyl, not bonded directly to a ring, in acid moiety Ring in alcohol moiety Monocyclic acid moiety Cyclopentyl-COOR, -C-COOR or -C-C-COOR Cyclobutyl in acid moiety Cyclopropyl in acid moiety Carboxylic acid esters |
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