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:
Apr. 24, 2007
Filed:
Aug. 25, 2004
Applicants:
Thomas Geller, Leverkusen, DE;
Christa Maria Krüger, Münster, DE;
Hans-christian Militzer, Odenthal, DE;
Inventors:
Thomas Geller, Leverkusen, DE;
Christa Maria Krüger, Münster, DE;
Hans-Christian Militzer, Odenthal, DE;
Assignee:
Lanxess Deutschland GmbH, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/26 (2006.01); C07D 301/12 (2006.01); C07D 303/32 (2006.01); C08L 77/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a novel process that makes it possible to epoxidize α,β-unsaturated enones or α,β-unsaturated sulfones with high conversions and enantiomeric excesses in a two-phase system without addition of water in the presence of an organic solvent, a base, an oxidant, a diastereomer- and enantiomer-enriched homo-polyamino acid that has not been separately preactivated as catalyst, and a specific phase-transfer catalyst as cocatalyst.