Patent · US Active

Process for the production of trialkylsilyl(fluorosulfonyl)difluoroacetate

US7348446B2 · kind B2 · utility

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1References

21Claims

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Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Allen Capron Sievert · Elkwood Estates, US
Lee G. Sprague · Augusta, US

Key dates

Filing date	May 1, 2007
Grant date	Mar 25, 2008
Priority date	—
Expiry date	May 1, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F7/1896
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for the production of trialkylsilyl (fluorosulfonyl)difluoroacetate by contacting (fluorosulfonyl)difluoroacetyl fluoride with siloxane. The amount of (fluorosulfonyl)difluoroacetic acid by-product in trialkylsilyl(fluorosulfonyl)difluoroacetate is reduced by contacting said mixture with trialkylsilyl halide.

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