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:
Mar. 12, 2024
Filed:
Jul. 06, 2020
Basf Corporation, Florham Park, NJ (US);
California Institute of Technology, Pasadena, CA (US);
Sarah Reisman, Pasadena, CA (US);
Michael Rombola, Pasadena, CA (US);
Carolyn L. Ladd, Pasadena, CA (US);
Martin John McLaughlin, Ludwigshafen, DE;
Stephan Zuend, Hayward, CA (US);
Roland Goetz, Ludwigshafen, DE;
BASF CORPORATION, Florham Park, NJ (US);
CALIFORNIA INSTITUTE OF TECHNOLOGY, Pasadena, CA (US);
Abstract
This invention relates to a process for the synthesis of a non-racemic cyclohexene compound of formula (I) by a Diels-Alder reaction of a compound of formula (II) with a compound of formula (III) wherein R, R, R, R, R, R, R, R, Rand Y have the meanings as defined in the description in the presence of a catalyst comprising at least one m-valent metal cation Mwherein the metal M is selected from Scandium (Sc), Yttrium (Y), Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium 15 (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu), Gallium (Ga) and Indium (In), and m is an integer of 1, 2 or 3, and a chiral ligand of the formula (IV) wherein R, R, R, R, R, R, R, R, Z and Z′ have the meanings as defined in the description.