Carbonyldiimidazoles, their ester derivatives and method for their production

US6410744B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Armin Stamm · Mainz, DE
• Manfred Julius · Schifferstadt, DE
• Alois Kindler · Haßloch, DE
• Michael Henningsen · Bischofswerda, DE
• Jörg Botzem · Schifferstadt, DE

Key dates

• Filing date: Dec 8, 1999
• Grant date: Jun 25, 2002
• Expiry date: Dec 8, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D233/80
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Carbonyldiimidazoles of the formulae Ia, Ib, Ic or mixtures thereof where R1 is C1-4-alkyl and R2 is hydrogen or methyl, and tert-butyl esters derived therefrom are described.