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. 10, 1985
Filed:
Mar. 21, 1984
Applicant:
Inventors:
J Shield Wallace, Dayton, OH (US);
Fred E Arnold, Centervile, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568766 ; 568764 ; 568794 ;
Abstract
An acetylenic end-capping agent of the general formula ##STR1## wherein R.sup.1 and R.sup.2 can be the same or different and are selected from the group consisting of hydrogen, C11 to C4 alkyl, phenyl and substituted phenyl, and wherein R.sup.1 and R.sup.2 together with the carbon atom to which they are attached form a saturated 5- or 6-membered ring. This end-capping agent is substantially free of Pd and Cu. Also provided is a method for producing this end-capping agent and a method for producing acetylene terminated compounds.