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:
Sep. 15, 2009
Filed:
Apr. 05, 2004
Benoît Pugin, Münchenstein, CH;
Pierre Martin, Rheinfelden, CH;
Markus Müller, Stein, CH;
Frédéric Maurice Naud, Huningue, FR;
Felix Spindler, Starrkirch-Wil, CH;
Marc Thommen, Nuglar, CH;
Gianpietro Melone, Möhlin, CH;
Martin Kesselgruber, Basel, CH;
Benoît Pugin, Münchenstein, CH;
Pierre Martin, Rheinfelden, CH;
Markus Müller, Stein, CH;
Frédéric Maurice Naud, Huningue, FR;
Felix Spindler, Starrkirch-Wil, CH;
Marc Thommen, Nuglar, CH;
Gianpietro Melone, Möhlin, CH;
Martin Kesselgruber, Basel, CH;
Solvias AG, Basel, CH;
Abstract
1,1'-Biphenyl-2,2′-diphosphines having at least one amine substituent in the para position relative to the phosphine group and having the formulae are ligands for metal complexes which serve as catalysts for asymmetric addition reactions of prochiral organic compounds and whose catalytic properties can be tailored specifically to particular substrates by substitution of the amine group.