Method for preparing esters of acrylic acid and methacrylic acid by transesterification

US4672105A · kind A · utility

Assignee

• Rohm GmbH Chemische Fabrik · DE

Inventors

• Fritz Schlosser · Darmstadt, DE
• Peter J. Arndt · Seeheim-Jugenheim, DE
• Manfred Mueller · Eindhoven, NL
• Lothar Janssen · Höchst im Odenwald, DE

Key dates

• Filing date: Jun 17, 1985
• Grant date: Jun 9, 1987
• Expiry date: Jun 17, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/03
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method for preparing an ester of (meth)acrylic acid with a polyhydric alcohol comprising, transesterifying a (meth)acrylic acid ester derived from an alcohol of 1-4 carbon atoms with a transesterifying polyhydric alcohol in the presence of at least one metal compound catalyst system, said catalyst system being comprised of compounds A or a combination of compounds A+B, wherein A represents at least one compound of the formula: Li.sub.n Y, wherein Y is halide, chlorate, carbonate, carboxylate of 1 to 6 carbon atoms, an alkoxide of 1 to 4 carbon atom, hydroxide or oxide and n is 1 or 2, and wherein B is the compound: CaX.sub.q, wherein X is oxide or chloride, and q is 1 or 2; with the provision that at least one of the two anionic components Y and X is oxygen-containing.