发明授权
US5759957A N-cyanoaryl nitrogen heterocycles 失效
N-氰基芳基氮杂环

N-cyanoaryl nitrogen heterocycles
摘要:
The invention relates to novel N-cyanoaryl nitrogen heterocycles of general formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and Z have the meanings given in the description, several processes for producing them, their use as herbicides and insecticides and novel intermediate products.
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