Separation of isomeric menthol compounds

US9024079B2 · kind B2 · utility

Assignee

• LANXESS Deutschland GmbH · DE

Inventors

• Reinhold Brink · Haltern, DE
• Lutz Heuer · Blomberg, DE
• Sven Kuhlmann · Lemförde, DE
• Martin Mechelhoff · Cologne, DE
• Oliver Pfohl · Hamburg, DE

Key dates

• Filing date: Aug 27, 2012
• Grant date: May 5, 2015
• Expiry date: Aug 27, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for rectificative separation of compositions of matter containing diastereomers of 2-isopropyl-5-methylcyclohexanol by using ionic liquids as extractants.