Method for producing Guerbet alcohols

US8779216B2 · kind B2 · utility

Assignee

• Cognis IP Management GmbH · DE

Inventors

• Anja Wick · Hilden, DE
• Eike Ulf Mahnke · Velbert, DE

Key dates

• Filing date: Oct 28, 2010
• Grant date: Jul 15, 2014
• Expiry date: Jul 3, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C31/125
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method for the dimerization of alcohols in the context of a Guerbet reaction, in which one or more alcohols (A) having 2 to 72 C atoms and 1 to 3 OH groups per molecule are reacted in the presence of (a) a base (B), (b) a carbonyl compound (C), and (c) a hydrogenation catalyst (H) from the group of metals ruthenium, rhodium, palladium, osmium, iridium, and platinum, said metals being in the elementary form, with the proviso that the alcohols (A) have at least one primary or secondary OH group, and that a C atom that carries at least one H atom as a substituent is directly adjacent to the C atom with said primary or secondary OH group.