Patent · US Active

Process for the preparation of oxovinylionol and its O-protected derivatives

US9061982B2 · kind B2 · utility

1Cited by

2References

18Claims

0Family size

Assignee

BASF SE

Inventors

Hansgeorg Ernst · Speyer, DE
Michael Puhl · Hirschberg, DE
Stefan Benson · Bensheim, DE
Wolfgang Siegel · Schifferstadt, DE

Key dates

Filing date	Nov 9, 2012
Grant date	Jun 23, 2015
Priority date	—
Expiry date	Apr 25, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/55
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to the preparation of oxovinylionol and its O-protected derivatives of the formula Iin which R is hydrogen or an OH protecting group, for example a group Si(Ra)3, by reacting a compound of the general formula IIin 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.