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:
Jul. 10, 1990
Filed:
Mar. 31, 1989
Applicant:
Inventors:
Edward G Corley, Old Bridge, NJ (US);
Robert D Larsen, Monmouth Junction, NJ (US);
Edward J Grabowski, Westfield, NJ (US);
Paul Reider, Westfield, NJ (US);
Assignee:
Merck & Co., Inc., Rahway, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07B / ;
U.S. Cl.
CPC ...
560103 ; 560110 ; 560-1 ; 560-9 ; 560 15 ; 560 47 ; 560 49 ; 560 60 ; 560101 ; 560104 ; 560105 ; 560 66 ; 560 83 ; 560 88 ; 560169 ; 560184 ; 560187 ; 560179 ; 560219 ; 549319 ; 556436 ; 562401 ; 562496 ; 562579 ; 562606 ;
Abstract
A process is described for the preparation of an optically active carboxylic acid or ester derivative thereof from a ketene and an optically active .alpha.-hydroxyester or an .alpha.-hydroxy amide.