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Kumiai Chemical Industry Co Ltd
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Kumiai Chemical Industry Co Ltd
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Priority to JP4721579ApriorityCriticalpatent/JPS55139356A/en
Publication of JPS55139356ApublicationCriticalpatent/JPS55139356A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Agricultural Chemicals And Associated Chemicals
(AREA)
Abstract
NEW MATERIAL:The title derivative of formula I [R is 4-trifluoromethylphenyl, etc.; R' is formula II (X is H, halogen, etc.; Y is H, halogen, etc.), formula III (R' is alkyl); n is 0 or 1].
USE: Herbicide. Extremely high selectivity to the true-grass weeds such as cockspur- grass. Applicable at an arbitrary stage with desired method, e.g. before or after sprouting, with soil-treatment, stalks and leaves treatment, etc. Since it does not form an azeotropic mixture with water, there is no danger of damaging the true- grass crops of the adjacent fields by the vapor-action. High adsorptivity to soil.
PROCESS: The compound of formula I is prepared by reacting a substituted phenol of formula IV with a pentenoic acid derivative of formula V (A is halogen) in a solvent such as water, in the presence of a base.
COPYRIGHT: (C)1980,JPO&Japio
JP4721579A1979-04-191979-04-19Phenoxypentenoic acid derivative, and herbicide containing the same
PendingJPS55139356A
(en)