Novel heterocyclic substituted benzenes, herbicidal compositions containing them and the use thereof for combating weeds.

摘要

Compounds of the formula below are disclosed as selective herbicides:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="27" wi="35" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>where W is a substituted heterocyclic selected from:
<Chemistry id="chema02" num="0002"><Image id="ia02" he="26" wi="39" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry><Chemistry id="chema03" num="0003"><Image id="ia03" he="28" wi="87" file="IMGA0003.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry><Chemistry id="chema04" num="0004"><Image id="ia04" he="29" wi="88" file="IMGA0004.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry><Chemistry id="chema05" num="0005"><Image id="ia05" he="31" wi="89" file="IMGA0005.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry><!-- EPO <DP n="2"> --><Chemistry id="chema06" num="0006"><Image id="ia06" he="25" wi="84" file="IMGA0006.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>

wherein A is O or S: halo is chloro, bromo or fluoro; R<Sup>1</Sup> and R<Sup>2</Sup> are the same or different radicals seiectea from hydrogen or (C<Sub>1</Sub>-C<Sub>4</Sub>) alkyl; X is hydrogen or halo: X<Sup>1</Sup> is methylene. O or S; Z is carboxy, alkoxyalkoxy, alkoxycarbonyl. alkoxycarbonylalkoxycarbonyl, alkoxyalkoxycarbonyl, acyloxy, acylalkoxy. cyanoalkoxy, alkylthioalkoxy, alkoxycarbonylalkoxy, alkoxycarbonylalkenyloxy, a 5- to 6-membered heterocyclic, formylalkoxy. haloalkoxy, mononuclear arylcarbonyalkoxy, oxiranylalkoxy, ammo. monoalkyl amino. dialkylamino, hydrazino, monoal- kythydrazino, dialkylhydrazino, acyiamino. alkoxyamino, alkoxycarbonylamino, mono- or dialkylcarbonylamino, N-alkyl-N-al- koxyalkylaminocarbonylamino, haloalkylcarbonylamino, N-alkylsulfonylaminocarbonyl, N-alkylsulfonylamino, monoalkenylamino, dialkenylamino, monoalkynylamino, dialkynylamino, N-alkyl-N-alkenylamino, or N-alkyl-N-alkynylamino: R is hydrogen or (C<Sub>1</Sub>-C<Sub>4</Sub>)alkyl and R<Sup>3</Sup> ana R<Sup>4</Sup> are the same or different and are selected from hydrogen. (C<Sub>1</Sub>-C<Sub>4</Sub>)-alkyl, (C<Sub>3</Sub>-C<Sub>5</Sub>)alkenyl or (C<Sub>3</Sub>-C<Sub>5</Sub>)alkynyl.