1-substituted imidazole-5-carboxylic acid derivatives, their preparation and their use as biocides

US4820335A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Thomas Maier · Stockach, DE
• Roland Schmierer · Todtenweis, DE
• Klaus Bauer · Rodgau, DE
• Hermann Bieringer · Eppstein, DE
• Helmut Burstell · Frankfurt am Main, DE
• Burkhard Sachse · Kelkheim, DE

Key dates

• Filing date: May 27, 1986
• Grant date: Apr 11, 1989
• Expiry date: May 27, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D233/90
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to imidazole-5-carboxylic acid derivatives in which the imidazole ring is substituted in the 1-position by a 2,6-dialkylphenyl radical and which have the formula ##STR1## in which X=O, S or N. The compounds are obtained from appropriately substituted bisformyl esters, either by reacting the latter with formamide or with ammonium acetate or by subjecting aminomethylene compounds prepared from the bisformyl esters to an intramolecular condensation reaction. The new substances can be used as biocides, in particular herbicides, fungicides and growth regulators.