Weed-killing heterocyclic compounds.

摘要

The description relates to heterocyclic compounds having weed-killing activity and defined by the following general formula:
<Chemistry id="chema01" num="0001"><Image id="ia01" he="23" wi="58" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>where R is a straight-chain or branched alkyl group with 1 to 6 carbon atoms or the phenyl group, R<Sub>1</Sub> is a straight-chain or branched alkyl group with 1 to 10 carbon atoms (substituted if required by halide, or phenyl group), an alkenyl group, an alkynyl group, a cycloalkyl group, orthe phenyl group.