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US4891057A Phenylpyrazolecarboxylic acid derivatives, their preparation, and their use as plant-growth regulators and safeners 失效
苯基吡唑羧酸衍生物,它们的制备及其作为植物生长调节剂和安全剂的用途

Phenylpyrazolecarboxylic acid derivatives, their preparation, and their
use as plant-growth regulators and safeners
Abstract:
Compounds of the formula I ##STR1## in which R denotes halogen, hydroxyl, cyano, nitro, (substituted) alkyl, (substituted) alkoxy, (halo)alkylthio, carboxyl, alkoxycarbonyl; (halo)alkylsulf(inyl)(onyl) or -(onyloxy); (halo)phenyl or (halo)phenoxy; X in the 3- or 5-position denotes a (thio)carboxylic acid--or an optionally heterocyclic radical which is derived therefrom; Y denotes halogen, m denotes the number 0 or 1, and n denotes a number from 0 to 5, have valuable plant growth-regulating properties and are suitable, in addition, as safeners for protecting crop plants against phytotoxic side effects of herbicides.
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