Cyanomethyl ester of 4-(p-trifluoromethylphenoxy)-.alpha.-phenox

Details Cyanomethyl ester of 4-(p-trifluoromethylphenoxy)-.alpha.-phenox Cyanomethyl ester of 4-(p-trifluoromethylphenoxy)-.alpha.-phenox

1979-02-01

1980-10-07

Torrence, Dolph H.

Chemistry: fertilizers

Processes and products

Forms or conditioning

260465D, 2604654, A01N 920, C07I12175

Patent

active

042266149

ABSTRACT:
The present invention provides a novel herbicidally active ester, namely the cyanomethyl ester of 4-(p-trifluoromethylphenoxy)-.alpha.-phenoxypropionic acid of the formula ##STR1## It is a further object of the invention to provide a herbicidal composition which contains this novel ester as active component and also a post-emergence method of selectively controlling monocotyledonous weeds in crops of dicotyledonous plants. The invention furthermore provides a process for the manufacture of the novel ester by methods which are known per se by reaction of a corresponding trifluoromethyl-phenoxy-.alpha.-phenoxypropionic acid halide with hydroxyacetonitrile (cyanomethanol) or by reaction of 4-(p-trifluoromethylphenoxy)-phenol with a .alpha.-halopropionic acid cyanomethyl ester.

REFERENCES:
patent: 4071178 (1978-01-01), Johnson et al.

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