Plant-protecting substituted isoxazolines, isoxazoles, isothiazolines and isothiazoles, and also processes for their preparation and their use

US5332715A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Heinz-Josef Loher · Hofheim, DE
• Klaus Bauer · Rodgau, DE
• Hermann Bieringer · Eppstein, DE

Key dates

• Filing date: Nov 18, 1992
• Grant date: Jul 26, 1994
• Expiry date: Nov 18, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/0814
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Plant-protecting substituted isoxazolines, isoxazoles, isothiazolines and isothiazoles, and also processes for their preparation and their use PA0 Compounds of the formula I EQU (R.sup.1)(R.sup.2)(R.sup.3)Si--A--Het--B--CO--Z (I) where PA0 Het is an isoxazole-, isoxazoline-, isothiazole- or isothiazoline-3,5-diyl radical, PA0 A and B are a bond or alkylene, PA0 R.sup.1, R.sup.2 and R.sup.3 are substituted or unsubstituted, saturated or unsaturated alkyl or, if desired, phenylalkyl or phenyl, PA0 Z is OH, OR where R is saturated or unsaturated, substituted or unsubstituted alkyl or substituted or unsubstituted phenyl or benzyl or trialkylsilylmethoxy, substituted or unsubstituted phenylamino or oxazolinyl or amino, mono- or dialkylamino or -hydrazino, cycloalkylamino, NH.sub.2 NH.sub.2, pyridino, morpholino, dimethylmorpholino, a radical --ON.dbd.CR.sup.4 R.sup.5 or O--CHR.sup.7 --CO--OR.sup.6 where R.sup.4, R.sup.5 =alkyl and/or R.sup.4 CR.sup.5 is cycloalkyl and R.sup.6, R.sup.7 are H or a saturated or unsaturated acyclic hydrocarbon radical, are suitable for protecting crop plants against phytotoxic side effects of herbicides.