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US 8,912,124 B2Granted
Use of derivatives of (1-cyanocyclopropyl)phenylphosphinic acid, esters thereof and/or salts thereof for enhancing tolerance in plants to abiotic stress
AssigneeBayer CropScience AG
InventorsLothar Willms, Hans-Joachim Zeiβ, Marco Busch, Christopher Hugh Rosinger, Ines Heinemann, Isolde Häuser-Hahn, Martin Jeffrey Hills, Pascal Von Koskull-Döring
Life of this patent
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Abstract
The invention relates to derivatives of (1-cyanocyclopropyl)phenylphosphinic acid of the formula (I) and to salts thereof, of the formula (II), for enhancing stress tolerance in plants to abiotic stress, preferably to drought stress, especially for enhancing plant growth and/or for increasing plant yield.
Claims11
A method for increasing tolerance in plants to abiotic stress, comprising:
- applying an effective amount of a derivative of (1-cyanocyclopropyl)phenylphosphinic acid of the formula (I), or an ester or salt thereof, to the plants;
- wherein formula (I) is:
- where:
- R1 is:
- halogen;
- or
- a branched or unbranched alkyl, cycloalkyl, alkenyl, alkynyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, alkoxyalkyl, hydroxyalkyl, alkoxyalkenyl, alkylthio, haloalkylthio, alkylsulfinyl, alkylsulfonyl, haloalkyl, alkoxy, haloalkoxy, carboxyl, alkoxycarbonyl, aminocarbonyl which is optionally mono- or disubstituted;
- or
- cyano, amino, or nitro;
- R2 is hydrogen, or a branched or unbranched alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkenylalkyl, alkynyl, alkynylalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, alkoxyalkyl, hydroxyalkyl, alkoxyalkenyl, hydroxyalkenyl, alkylthioalkyl, haloalkyl, alkylaminoalkyl, bisalkylaminoallyl, or cycloalkylaminoalkyl;
- and
- n is 0, 1, 2, 3, 4, or 5.
9 more elements
A method for increasing tolerance of genetically modified cultivars to abiotic stress, comprising:
- applying an effective amount of a derivative of (1-cyanocyclopropyl)phenylphosphinic acid of the formula (I), and/or of one or more esters or salts thereof, to the genetically modified cultivars, to seed of the genetically modified cultivars, or to cultivation areas on which these cultivars grow;
- wherein formula (I) is:
- where:
- R1 is:
- halogen;
- or
- a branched or unbranched alkyl, cycloalkyl, alkenyl, alkynyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, alkoxyalkyl, hydroxyalkyl, alkoxyalkenyl, alkylthio, haloalkylthio, alkylsulfonyl, haloalkyl, alkoxy, haloalkoxy, carboxyl, alkoxycarbonyl, aminocarbonyl which is optionally mono- or disubstituted;
- or
- cyano, amino, or nitro;
- R2 is hydrogen, or a branched or unbranched alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkenylalkyl, alkynyl, alkynylalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, alkoxyalkyl, hydroxyalkyl, alkoxyalkenyl, hydroxyalkenyl, alkylthioalkyl, haloalkyl, alkylaminoalkyl, bisalkylaminoalkyl, or cycloalkylaminoalkyl;
- and
- n is 0, 1, 2, 3, 4, or 5.
9 more elements
Dependencies are inferred from the claim text.