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:
Apr. 11, 1995
Filed:
Mar. 28, 1991
Applicant:
Inventors:
Varadaraj Elango, Corpus Christi, TX (US);
Donald R Larkin, Corpus Christi, TX (US);
John R Fritch, Corpus Christi, TX (US);
Michael P Bodman, Corpus Christi, TX (US);
Werner H Mueller, Corpus Christi, TX (US);
Bernard F Gupton, Virginia beach, VA (US);
John C Saukaitis, East Greenwich, RI (US);
Assignee:
Hoechst Celanese Corporation, Somerville, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
558392 ; 558394 ; 558404 ; 558406 ; 560 25 ; 560 27 ; 560 29 ; 560 37 ; 560 42 ; 564155 ; 564160 ;
Abstract
The present invention pertains to a method of preparing substituted and unsubstituted N-hydroxy-2-aminobutane diacid derivatives which can be dehydrated to 2-aminobut-2-ene dioic acid derivatives, which can be subsequently converted to pyridine and quinoline derivatives.