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专利名称:Alkyl-substituted cycloalkanapyrazole
herbicides
发明人:Anthony D. Wolf申请号:US05/727362申请日:19760927公开号:US04124374A公开日:19781107
摘要:Herbicidal alkyl-substituted cycloalkanapyrazoles of the formula: ##STR1##where N IS 3, 4 OR 5;
R.sub.1 is hydrogen or methyl;
Q is methyl;
X is fluorine, chlorine, bromine, iodine, cyano or methoxy;
Y is hydrogen, fluorine or chlorine;
Z is hydrogen or fluorine;
V is hydrogen, fluorine, chlorine or OR; and
R is alkyl of 1 to 4 carbon atoms; with the proviso that
A. WHEN N IS 3, R.sub.1 is hydrogen;
< P>B. WHEN N IS 5, R.sub.1 is hydrogen, Y is hydrogen or fluorine, Z and V arehydrogen and X is fluorine, chlorine or bromine;
< P>C. WHEN V is OR, X and Y are chlorine and Z is hydrogen;
D. WHEN V is fluorine or chlorine, X is fluorine, chlorine or bromine and Z is hydrogen.
Preferred for their higher activity or favorable cost or both are those compounds offormula I where, independently,
1. R.sub.1 is hydrogen and n is 4,< P>
2. Y is hydrogen or fluorine, V is hydrogen and Z is hydrogen.
Most preferred for their outstanding herbicidal activity are those compounds offormula I where n is 4, R.sub. 1 is hydrogen, X is fluorine, chlorine or bromine, Y ishydrogen or fluorine, V is hydrogen and Z is hydrogen.
申请人:E. I. DU PONT DE NEMOURS AND COMPANY
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