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:
Oct. 01, 2013
Filed:
Dec. 17, 2008
Lucia Koenigsmann, Stuttgart, DE;
Juergen Schubert, Dirmstein, DE;
Andreas Walch, Schwaigern, DE;
Guenther Gottwald, Mannheim, DE;
Martin Kamasz, Mannheim, DE;
Ekkehard Schwab, Neustadt, DE;
Klaus-peter Pfaff, Friedelsheim, DE;
Michael Slany, Kirchheim, DE;
Lucia Koenigsmann, Stuttgart, DE;
Juergen Schubert, Dirmstein, DE;
Andreas Walch, Schwaigern, DE;
Guenther Gottwald, Mannheim, DE;
Martin Kamasz, Mannheim, DE;
Ekkehard Schwab, Neustadt, DE;
Klaus-Peter Pfaff, Friedelsheim, DE;
Michael Slany, Kirchheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to a process for the preparation of cis-2-(2-methylprop-1-enyl)-4-methyltetrahydropyran comprising the catalytic hydrogenation of 2-(2-methylprop-1-enyl)-4-methylenetetrahydropyran in the presence of hydrogen and a heterogeneous catalyst comprising ruthenium on a support and subsequently bringing the compounds obtained in this way into contact with a strongly acidic cation exchanger.