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AssigneeFastman Chemical Company
InventorsScott Donald Barnicki, Jennifer Ellen McCusker-Orth, Joseph Franklin Knight, Jerry Lynn Miller
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Continuous single-step processes for producing higher molecular weight ketones are disclosed that involve a liquid-phase crossed condensation of an aldehyde with a ketone in the presence of a hydrogenation catalyst and a small amount of a catalyst comprising a concentrated hydroxide or alkoxide of an alkali-metal (from Group 1 or Group IA of the Periodic Table of the Elements) or alkali-earth metal (from Group 2, or Group IIA of the Periodic Table of the Elements), wherein the amount of water provided to the reaction mixture, or reaction zone, is relatively low, with respect to the total initial weight of the reaction mixture. The reaction may be carried out in the absence of solubilizing agents or phase transfer agents. The product mixture is largely free of by-products resulting from further condensation reactions of the desired ketone product or intermediates, and free of the self-condensation products of the reactant aldehyde, that are afterward difficult to remove from the reaction mixture.
A process for producing a higher molecular weight saturated ketone, the process comprising reacting an aldehyde reactant with a ketone reactant having at least one hydrogen atom alpha to the carbonyl, in a reaction mixture comprising the aldehyde reactant, the ketone reactant, and an aldol catalyst comprised of a hydroxide or alkoxide of an alkali metal or an alkaline earth metal provided as a solution or as a solid,
A process for producing 2-heptanone, the process comprising reacting n-butyraldehyde with acetone, in a reaction mixture comprising the n-butyraldehyde, the acetone, and an aldol catalyst comprised of a hydroxide or alkoxide of an alkali metal or an alkaline earth metal provided as a solution or as a solid,
Dependencies are inferred from the claim text.