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:
Oct. 20, 1981
Filed:
Aug. 08, 1979
Applicant:
Inventors:
Rainer Zielke, Erlenbach, DE;
Helmut Maegerlein, Obernburg, DE;
Assignee:
Akzona Incorporated, Asheville, NC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568763 ; 568770 ;
Abstract
A process for the preparation of phloroglucinol is disclosed. The process comprises reacting hexachlorobenzene with sodium propylate or sodium isopropylate, in a molar ratio of from about 1:3 to about 1:20, in an aprotic solvent, at a temperature from about 50 to about 250.degree. C., to form trichlorophloroglucinol tripropylether, or trichlorophloroglucinol triisopropylether. The latter compounds are dechlorinated to form phloroglucinol tripropylether or phloroglucinol triisopropylether, with the use of metallic sodium, and subsequently hydrolyzed to form phloroglucinol.