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. 28, 2000
Filed:
Feb. 03, 1999
Applicant:
Inventors:
Philip Pye, Guttenberg, NJ (US);
Ralph P Volante, Cranbury, NJ (US);
Kai Rossen, Westfield, NJ (US);
Assignee:
Merck & Co., Inc., Rahway, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556 21 ; 556 22 ; 556136 ;
Abstract
New chiral biphosphines, e.g., ##STR1## are useful as key components in catalysts for asymmetric reactions, providing desirably high enantiomeric excess (ee).