Functionalized N-substituted pyrrolidonium ionic liquids

US8119818B2 · kind B2 · utility

Assignee

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

Inventors

• Thomas Foo · Rockville, US
• Mark Andrew Harmer · Kennett Square, US
• Keith W. Hutchenson · McKeesport, US
• Christopher P. Junk · Wilmington, US
• Berlyn R. Mellein · Wilmington, US
• Aaron Minter · Wilmington, US

Key dates

• Filing date: Dec 4, 2008
• Grant date: Feb 21, 2012
• Expiry date: Dec 22, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D207/27
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

This invention relates to compounds useful as ionic liquids that are based on an N-substituted pyrrolidinone and incorporate a pendant ammonium cation that is spaced from the pyrrolidone ring by a variable length linker.