[4-(5'-Trifluoromethylpyridyl-2'-oxy)-phenoxy]-propionic acid es

Details [4-(5'-Trifluoromethylpyridyl-2'-oxy)-phenoxy]-propionic acid es [4-(5'-Trifluoromethylpyridyl-2'-oxy)-phenoxy]-propionic acid es

1980-07-31

1983-07-26

Jiles, Henry R.

Chemistry: fertilizers

Processes and products

Forms or conditioning

546283, A01N 4340, C07D41312

Patent

active

043952771

ABSTRACT:
Novel .alpha.-[4-(5'-trifluoromethylpyridyl-2'-oxy)-phenoxy]-propionic acid -.gamma.-butyrolactone esters and -thioesters of the formula ##STR1## wherein R is hydrogen or chlorine, and X is oxygen or sulfur, which compounds have herbicidal activity. They are especially suitable for selectively combating gramineous weeds in cultivated crops. These compounds are produced by esterifing pyridyloxy-phenoxy-propionic acid with .alpha.-bromo-.gamma.-butyrolactone.

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