Combating plant pathogenic bacteria with 3-halogeno-benzotriazine 1-oxides

US4206212A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Klaus Sasse · Bensberg, DE
• Peter Kraus · Cologne, DE
• Hans Scheinpflug · Leverkusen, DE

Key dates

• Filing date: Aug 25, 1978
• Grant date: Jun 3, 1980
• Expiry date: Aug 25, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C275/30
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Plant-pathogenic bacteria are combated with 3-halogeno-benzotriazine 1-oxides of the formula ##STR1## in which X each independently is halogen, a nitro group, an alkyl, halogenoalkyl, alkoxy, alkylmercapto or alkylsulphonyl group with up to 4 carbon atoms in each case, a phenoxy radical or a phenylmercapto radical, PA1 n is an integer from 0 to 4, and PA1 Hal is chlorine or bromine. Such compounds are produced by reacting the corresponding 3-hydroxy compounds with thionyl chloride in the presence of dimethylformamide.