Process for preparing cyclododecanone

US9533933B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Kévin Micoine · Herten, DE
• Ralf Meier · Dortmund, DE
• Juergen Herwig
• Martin Roos · Oestrich-Winkel, DE
• Harald Haeger · Thedinghausen, DE
• Luca Cameretti · Dortmund, DE
• Jens DOERING · Dortmund, DE

Key dates

• Filing date: Jul 31, 2015
• Grant date: Jan 3, 2017
• Expiry date: Jul 31, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C49/413
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and CDEN, wherein CDEN is separated from the CDON-containing mixture and sent to the epoxidation to CDAN epoxide in step a.