The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 2004
Filed:
May. 06, 2002
Andreas Ansmann, Wiesloch, DE;
Jochem Henkelmann, Mannheim, DE;
Alois Kindler, Grünstadt, DE;
Heinz Etzrodt, Neustadt, DE;
Carsten Oost, Bad Dürkheim, DE;
Susanne Stutz, Weinheim, DE;
Christian Tragut, Brasschaat, BE;
Bernhard Bockstiegel, Römerberg, DE;
Klaus Reimer, Mutterstadt, DE;
Manfred Stroezel, Ilvesheim, DE;
Walter Dobler, Schwetzingen, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
Higher &agr;,&bgr;-unsaturated alcohols are prepared by monoethynylation of a ketone by the NH /KOH method, if desired hydrogenation of the acetylene alcohol in the presence of hydrogen over a Pd-containing thin layer catalyst, purifying distillation of the hydrogenation product, preferably in a dividing wall column with recirculation of the unreacted ketone to the ethynylation step, and, if desired, preparation of higher alcohols having in each case 5 more carbon atoms in the chain by reacting the alcohols prepared by monoethynylation and, if desired, partial hydrogenation with alkyl acetoacetates diketene in a Carroll reaction to form ketones and using these as starting materials for the steps ethynylation, optional hydrogenation and fractional distillation.