Process for the preparation of unsymmetric bis(imino) compounds

US8252875B2 · kind B2 · utility

Assignee

• Basell Polyolefine GmbH · DE

Inventors

• Shahram Mihan · Bad Soden, DE
• Benno Bildstein · Innsbruck, AT
• Lars Kölling · Mannheim, DE
• Alexander Solchinger · Villeurbanne, FR
• Sascha Schlawjinski · Mörfelden, DE

Key dates

• Filing date: Jan 8, 2007
• Grant date: Aug 28, 2012
• Expiry date: Apr 22, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F110/02
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Process for the preparation of monoimine compounds, wherein a dicarbonyl compound is reacted in an aliphatic, non-aromatic solvent with aniline. Monoimine compounds having electron-withdrawing substituents in the ortho position and unsymmetric bis(imino) compounds and unsymmetric iron complexes prepared therefrom and the use thereof in the polymerization of olefins.