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. 26, 1996
Filed:
Feb. 21, 1995
Applicant:
Inventors:
Fritz Engelhardt, Frankfurt am Main, DE;
Ulrich Riegel, Frankfurt am Main, DE;
Hans-Jerg Kleiner, Kronberg, DE;
Assignee:
Cassella Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
558110 ; 558 77 ; 558 83 ;
Abstract
The present invention relates to a process for the preparation of compounds of the general formula I ##STR1## in which R.sup.1 and R.sup.2 are defined as stated in claim 1, characterized in that a 1,1,1-tris(hydroxymethyl)-(C.sub.2 -C.sub.5)-alkane or 2,2-bis(hydroxymethyl)-1,3-propanediol is reacted with vinylphosphonic anhydride.
Engelhardt, Fritz. (1996). Process for the preparation of cyclic vinylphosphonic esters (U.S. Patent No. 5502231). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5502231
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile