Process for the preparation of cyclohexanones

US6215028A · kind A · utility

Assignee

• Merck Patentgesellschaft · DE

Inventors

• Bernd Oster · Holden, US
• Peter Mackert · Egelsbach, DE
• Detlef Pauluth · Ober-Ramstadt, DE
• Markus Wydra · Rödermark, DE

Key dates

• Filing date: Nov 2, 1998
• Grant date: Apr 10, 2001
• Expiry date: Nov 2, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/313
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the preparation of cyclohexanones from the corresponding phenols by partial hydrogenation, characterized in that the reaction mixture obtained by means of the hydrogenation is treated with sulfonating agents before the isolation of the cyclohexanone.