Patent Number: 6,166,223

Title: Process for the preparation of 2,4-dimethylpyrrole

Abstract: A process for the preparation of 2,4-dimethylpyrrole is described in which a 2,4-dimethyl-3,5-bisalkoxycarbonylpyrrole is refluxed with from 10 to 30% strength aqueous alkali metal hydroxide solution until the solid has passed into solution, the reaction mixture is neutralized with acid and the mixture is refluxed further until decarboxylation is complete. The process makes it possible to work under significantly milder, less aggressive conditions than are known from the prior art.

Inventors: Groning; Carsten (Mannheim, DE), Kemper; Reinhard (Heidelberg, DE), Frede; Markus (Eppelheim, DE), Ebel; Klaus (Lampertheim, DE)

Assignee: BASF Aktiengesellschaft

International Classification: C07D 207/00 (20060101); C07D 207/323 (20060101); C07D 207/323 ()

Expiration Date: 12/26/2017