Herbicidal agents

US4278461A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Gerhard Salbeck · Hofheim, DE
• Hubert Schonowsky · Rödermark, DE
• Gerhard Horlein · Frankfurt am Main, DE
• Peter Langeluddeke · Hofheim, DE
• Helmut Kocher · Hofheim, DE

Key dates

• Filing date: Sep 13, 1978
• Grant date: Jul 14, 1981
• Expiry date: Sep 13, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/1651
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Herbicidal agents containing as active ingredient a compound of the formula ##STR1## in which R represents halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.2 -alkoxy or C.sub.1 -C.sub.2 -alkylthio, C.sub.1 -C.sub.2 -halogeno-alkyl, NO.sub.2 SO.sub.2 CH.sub.3, SO.sub.2 NH.sub.2, --COOCH.sub.3, CN, with the proviso that R.sub.2 cannot be alkoxy when (R).sub.n is alkyl, R.sub.1 and R.sub.3 represent C.sub.1 -C.sub.6 -alkyl, R.sub.2 represents C.sub.1 -C.sub.6 -alkyl, CH.sub.2 Cl or C.sub.1 -C.sub.6 -alkoxy, X is oxygen or sulfur and n is an integer of from 1 to 3 are especially useful for combatting annual weed grasses in dicotyledonous and even monocotyledonous crop plants.