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. 02, 1980
Filed:
Jul. 31, 1978
Applicant:
Inventors:
William S Knowles, St. Louis, MO (US);
Milton J Sabacky, Ballwin, MO (US);
Billy D Vineyard, St. Louis, MO (US);
Assignee:
Monsanto Company, St. Louis, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
2603 / ; 562444 ; 562445 ; 2603474 ; 562450 ; 562561 ; 2604 / ; 562562 ; 562571 ; 2605 / ; 562573 ; 562575 ; 2605 / ; 2605 / ; 2605 / ; 2605 / ; 2605 / ; 2605 / ; 2605 / ; 2605 / ; 2605 / ; 548344 ; 549 76 ; 549 77 ; 560 20 ; 560 21 ; 560 22 ; 560 23 ; 560 38 ; 560 39 ; 560 40 ; 560 41 ; 560155 ; 560171 ; 560250 ; 560251 ; 560252 ; 562434 ; 562435 ; 562437 ; 562443 ;
Abstract
New optically active bis phosphine compounds which are usful in optically active catalysts. Such catalysts are particularly useful in catalytic asymmetric hydrogenation.