Heterocyclic phenyl ethers and herbicides containing same

US4130413A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Reinhard Handte · Gablingen, DE
• Gerhard Horlein · Frankfurt am Main, DE
• Helmut Kocher · Hofheim, DE
• Peter Langeluddeke · Hofheim, DE

Key dates

• Filing date: Sep 8, 1977
• Grant date: Dec 19, 1978
• Expiry date: Sep 8, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D307/12
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Compounds of the formula ##STR1## in which (R).sub.n is hydrogen, halogen, CF.sub.3, NO.sub.2, CN, alkyl, alkoxy or alkylthio, PA1 A is O, S, NH, or N-alkyl, PA1 R.sub.1 is hydrogen or alkyl and PA1 Z is a carboxylic acid, carboxylic ester, thiol ester, carbonamide, carbohydrazide, thioamide, nitrile, hydroxymethyl, acyloxymethyl, carbamoylmethyl, or sulfonyloxymethyl group, Are valuable herbicides for the selective control of weed grasses. The novel compounds are prepared by known methods, for example by reacting halo-benzthiazoles, -benzoxazoles or -benzimidazoles with unilaterally etherified hydroquinones.