Halogencyclopropyl compounds, and use as herbicidal agents

US4859230A · kind A · utility

Assignee

• SCHERING CORPORATION · US

Inventors

• Friedhelm Blume · Berlin, DE
• Wilfried Franke · Berlin, DE
• Friedrich Arndt · Berlin, DE
• Richard Rees · Berlin, DE

Key dates

• Filing date: Oct 14, 1987
• Grant date: Aug 22, 1989
• Expiry date: Oct 14, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D471/04
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

There are described new halocyclopropyl compounds of the general formula I ##STR1## in which R.sub.1, R.sub.2 and R.sub.3, independently of each other, are hydrogen or C.sub.1-4 -alkyl, PA1 X is hydrogen or halogen, PA1 Y is halogen, PA1 n is 0, 1, 2 or 3, PA1 U and V are hydrogen or halogen, and PA1 W is a heterocyclic group of formula ##STR2## in which T is halogen, C.sub.1-4 -alkyl, C.sub.1-4 -haloalkyl, CN or OR.sub.9 PA1 Q is CH or N, PA1 Z is O or S, PA1 R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 are each a straight, branched or cyclic C.sub.1-7 -alkyl group optionally substituted by up to six halogen atoms, or PA1 R.sub.4 and R.sub.5, can also together form a 4 to 7 membered ring that is saturated or unsaturated and can contain further hetero atoms, such as O, S or N, and can optionally be substituted by one to three methyl groups or one to six halogen atoms, and PA1 R.sub.9 is hydrogen, C.sub.1-4 -alkyl or C.sub.1-4 -haloalkyl, processes for their preparation and their use as herbicide with high selectivity.