Substituted phenoxyalkane diones, intermediates for these compounds and the use of phenoxyalkane diones in the control of weeds.

摘要

Compounds of the following formula (A):
<CHEM>
wherein,
R is

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or
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R<1> is hydrogen or lower alkyl;
R<2> is lower alkyl;
W is oxygen, sulfur or amino;
Q is oxygen or sulfur;
each of Y and Z is independently selected from hydrogen, lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy, halogen, nitro and cyano; and
each of X min and X sec is independently selected from hydrogen lower haloalkyl, lower alkoxy, halogen and nitro, provided that both X min and X sec cannot be trifluoromethyl, methoxy or nitro;
suitable intermediates and the use of said compounds for the control of weeds.