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:
May. 11, 1993
Filed:
Dec. 23, 1991
Applicant:
Inventors:
Michele Petit, Wasquehal, FR;
Andre Mortreux, Hem, FR;
Francis Petit, Wasquehal, FR;
Gerard Buono, Marseille, FR;
Gilbert Peiffer, Marseille, FR;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ;
U.S. Cl.
CPC ...
548112 ; 548113 ; 564 12 ; 564 15 ;
Abstract
Chiral phosphorus-containing ligands comprising at least one amine radical and at least one dihydrocarbylphosphinoxy radical of the formula W=OP (R).sub.2, in which R is a hydrocarbon radical selected from the group consisting of alkyl, aryl, and cycloalkyl radicals, wherein the ligand is selected from the group consisting of: those of the formula ##STR1## those of the forumula ##STR2## those of the formula ##STR3## those of the formula ##STR4##