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:
Aug. 03, 1982
Filed:
Nov. 13, 1979
Applicant:
Inventors:
Dah-Chieh O Cheng, Kingsport, TN (US);
Joseph S Bowers, Jr, Kingsport, TN (US);
Ronald J Maner, Kingsport, TN (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
560130 ; 2604 / ; 2605 / ; 560144 ; 562606 ; 562607 ; 564124 ;
Abstract
Process for the preparation of Compound I by treating Compound II with X.sub.2 or SO.sub.2 X.sub.2 in the presence of a free radical initiator and an anhydride having the formula (RCO).sub.2 O while eliminating the acid halide formed having the formula RCOX from the reaction mixture, wherein Compounds I and II have the formulas ##STR1## and R is C.sub.1 -C.sub.3 alkyl, X is Cl or Br and n is 1, 2 or 3.