Catalysts for the preparation of carbonates from epoxides and CO2

US9018318B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Peter Deglmann · Ludwigshafen, DE
• Anna Katharina Brym · Schifferstadt, DE
• Bernhard Rieger · Langenau, DE
• Maximilian Lehenmeier · Ludwigshafen, DE
• Stephan Klaus · Birkenfeld, DE

Key dates

• Filing date: Aug 30, 2012
• Grant date: Apr 28, 2015
• Expiry date: May 13, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G64/34
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A macrocycle based on β-diketimines, a process for preparing the inventive macrocycle, an uncharged macrocyclic dimetallic complex based on the inventive macrocycle, and a process for preparing the uncharged macrocyclic dimetallic complex, the use of the uncharged macrocyclic dimetallic complex as a polymerization catalyst in the polymerization of carbon dioxide with one or more epoxides, a process for preparing polycarbonates by reacting carbon dioxide with one or more epoxides in the presence of the inventive uncharged macrocyclic dimetallic complex, and a polycarbonate prepared by the process according to the invention.