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:
Feb. 26, 1991
Filed:
Jan. 12, 1990
Applicant:
Inventors:
Peter Wilharm, Wiesbaden, DE;
Hans-Joachim Merrem, Seeheim-Jugenheim, DE;
Georg Pawlowski, Wiesbaden, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07F / ;
U.S. Cl.
CPC ...
534556 ; 534558 ; 534560 ; 534561 ; 534564 ; 534565 ; 549274 ; 560 29 ; 560 60 ; 560126 ; 560174 ; 564 48 ; 2525011 ; 430170 ; 430189 ;
Abstract
Polyfunctional .alpha.-diazo-.beta.-keto esters of the general formula I are described ##STR1## in which R.sup.1 denotes an aliphatic, cycloaliphatic or araliphatic or aromatic radical having 4 to 20 carbon atoms, in which individual CH.sub.2 groups can be replaced by oxygen or sulfur atoms or by N-- or NH groups and/or contain keto groups,