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:
Jun. 23, 2015
Filed:
Nov. 09, 2012
Basf SE, Ludwigshafen, DE;
Hansgeorg Ernst, Speyer, DE;
Michael Puhl, Hirschberg, DE;
Stefan Benson, Heppenheim, DE;
Wolfgang Siegel, Limburgerhof, DE;
BASF SE, , DE;
Abstract
The present invention relates to the preparation of oxovinylionol and its O-protected derivatives of the formula I in which R is hydrogen or an OH protecting group, for example a group Si(R), by reacting a compound of the general formula II in which R has the meanings given above for formula I, i.e. β-vinyl ionol (formula II, R=hydrogen) or an O-protected derivative thereof (formula II, R═OH protecting group) with an oxidant in the presence of at least one transition metal, where the oxidant comprises at least one oxygen-containing compound which is selected from among hydrogen peroxide and organic hydroperoxides.