Production of 3-methylpentane-1,5-diol

US3966827A · kind A · utility

Assignee

• BASF SE

Inventors

• Werner Aquila · Mannheim, DE
• Walter Himmele · Monsheim, DE
• Werner Fliege
• Hardo Siegel · Speyer, DE

Key dates

• Filing date: Jan 16, 1975
• Grant date: Jun 29, 1976
• Expiry date: Jan 16, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D309/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The production of 3-methylpentane-1,5-diol by hydroformylation of 2-methylbut-1-en-4-ol with carbon monoxide and hydrogen at elevated temperature and superatmospheric pressure in the presence of a rhodium carbonyl complex which has been modified by a tertiary organic phosphine followed by hydrogenation of the 2-hydroxy-4-methyltetrahydropyran at elevated temperature and superatmospheric pressure in the presence of a hydrogenation catalyst.