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. 09, 1988
Filed:
Feb. 26, 1987
Applicant:
Inventors:
Guenter Prescher, Hanau, DE;
Gebhard Ritter, Darmstadt, DE;
Holger Sauerstein, Grosskrotzenburg, DE;
Assignee:
Degussa Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568771 ; 568763 ;
Abstract
A method for the production of substituted 1,2,3- and 1,2,4-trihydroxybenzenes in a single process reaction step, wherein the corresponding substituted resorcinol which is a substituted 1,3-dihydroxybenzene is contacted with an aqueous hydrogen peroxide solution and through control of the water content of the initial reaction condition and control of the reaction temperature the desired products are obtained.