Method for producing 2,6-dioxabicyclo-(3.3.0)-octane-4,8-dione

US8378127B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Uwe Dingerdissen · Seeheim-Jugenheim, DE
• Jan Christoph Pfeffer · Hanau, DE
• Thomas Tacke · Friedrichsdorf, DE
• Thomas Haas · Munster, DE
• Harald Schmidt · Nideggen, DE
• Michael Volland · Karlsfeld, DE
• Michael Rimbach · Herne, DE
• Christian Lettmann · Coesfeld, DE
• Roger Sheldon · Rijswijk, NL
• Michiel Janssen · The Hague, NL

Key dates

• Filing date: Jan 26, 2010
• Grant date: Feb 19, 2013
• Expiry date: Mar 17, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D493/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing 2,6-dioxabicyclo-(3.3.0)-octane-4,8-dione (I), comprising the oxidation of dianhydrohexitols (II-IV), or of corresponding hydroxy ketones, with an oxygen-containing gas in the presence of a catalyst composition, the reaction proceeding without the addition of halogen sources.