Patent · US Active

Process for preparing alkyl 2-alkoxymethylene-4,4-difluoro-3-oxobutyrates

US8207354B2 · kind B2 · utility

3Cited by

2References

19Claims

0Family size

Assignee

BASF SE

Inventors

Volker Maywald · Ludwigshafen, DE
Sebastian Peer Smidt · Mannheim, DE
Bernd Wolf · Niederkirchen, DE
Christopher Koradin · Ludwigshafen, DE
Thomas Zierke · Böhl-Iggelheim, DE
Michael Rack · Eppelheim, DE
Michael Keil · Freinsheim, DE

Key dates

Filing date	Feb 27, 2009
Grant date	Jun 26, 2012
Priority date	—
Expiry date	Mar 18, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/343
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for preparing alkyl 2-alkoxymethylene-4,4-difluoro-3-oxobutyrates (VI)where R is methyl or ethyl,from crude reaction mixtures of alkyl 4,4-difluoroacetoacetates (I)by

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