Herbicidally active unsaturated esters of halogenated...

Details Herbicidally active unsaturated esters of halogenated... Herbicidally active unsaturated esters of halogenated...

C - Chemistry, Metallurgy

07

D

260/297, 71/8.1,

C07D 213/61 (2006.01) A01N 43/40 (2006.01) C07D 213/643 (2006.01)

Patent

CA 1101865

Abstract A class of herbicidal unsaturated esters of .alpha.-[4-(3',5'-dihalogeno-pyridyl-2'-oxy)-phenoxy]-propionic and -thiolpropionic acid of the formula Image wherein Hal is chlorine or bromine, X is oxygen or sulfur, and R is an unsubstituted or halogenated aliphatic or alicyclic radical which may contain nitrogen, and which posseses at least one double and/or triple bond, with the proviso that if X is oxygen, R is not an unsubstituted alkenyl radical. These new esters are useful for selective post-emergent control of grassy weeds in cultivated plants such as wheat, barley, rice and soybean.

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