Novel-alkynyl-substituted 3-phenylpyrrolidine-2,4-diones and use thereof as herbicides

US10899709B2 · kind B2 · utility

Assignee

• BAYER CROPSCIENCE AKTIENGESELLSCHAFT · DE

Inventors

• Alfred Angermann · Kriftel, DE
• Stefan Lehr · Leverkusen, DE
• Hendrik Helmke · Liederbach, DE
• Reiner Fischer · Monheim, DE
• Guido Bojack · Niedernhausen, DE
• Christopher Hugh Rosinger · Hofheim, DE
• Elmar Gatzweiler · Bad Nauheim, DE
• Hansjörg Dietrich · Hofheim, DE

Key dates

• Filing date: Jun 20, 2016
• Grant date: Jan 26, 2021
• Expiry date: Jun 20, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N2300/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Novel alkynyl-substituted 3-phenylpyrrolidine-2,4-diones and use thereof as herbicidesThe present invention relates to novel effective alkynyl-substituted 3-phenylpyrrolidine-2,4-diones according to the general formula (I) or agrochemically acceptable salts thereof, where X═C1-C4-alkyl, C1-C4-haloalkyl or C3-C6-cycloalkyl; Y═C1-C4-alkyl or C3-C6-cycloalkyl; n=1, 2 or 3; m=1 or 2; R1=C1-C6-alkyl, or C3-C6-cycloalkyl; R2=hydrogen or methyl; R3═C1-C3-alkoxy-C1-C3-alkyl, or a saturated five- or six-membered heterocycle with an oxygen or sulphur atom; G=hydrogen, a cleavable group L or a cation E.The invention also relates to the use of the compounds according to the invention for controlling weeds and weed grasses in crops of useful plants.