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US4636245A Herbicidal tetrahydrothiopyran-2,4-dione derivatives, compositions, and method of use therefor 失效
除草四氢噻喃-2,4-二酮衍生物,组合物及其使用方法

Herbicidal tetrahydrothiopyran-2,4-dione derivatives, compositions, and
method of use therefor
摘要:
Novel substituted tetrahydrothiopyran-2,4-dione herbicides of the formula ##STR1## in which R.sup.1 is hydrogen, alkyl, alkenyl, alkinyl, alkoxyalkyl, alkylthioalkyl, halogenoalkyl, cycloalkyl or optionally substituted aryl,R.sup.2 is alkyl, alkenyl, alkinyl, alkoxyalkyl, alkylthioalkyl, halogenoalkyl, halogenoalkenyl, alkoxycarbonylalkyl, alkoximinoalkyl, optionally substituted aralkyl or optionally substituted heterocyclylalkyl, andR.sup.3 and R.sup.4 each independently is hydrogen, alkyl, alkoxyalkyl, alkylthioalkyl, cycloalkyl, optionally substituted aryl, optionally substituted aryloxyalkyl or optionally substituted aralkyl,or metal salts thereof.
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