Aryl-pyrazole herbicides

Synthesis and Herbicidal Activity of Enantiomeric Lactate Derivatives of Aryl-Pyrazole Herbicides... 

United States Patent 4,589,905. Beck, J. R. 1986 Herbicidal and Algicidal l-aryl-5-cyano-lH-pyrazole-4-carboxamides. 

Concurrent with this research was the development of novel pyrazole chemistry which provided a new perspective toward the synthesis of herbicidally active compounds. As depicted in Figure 2, a number of herbicidal l-aryl-5-halo-lIi-pyrazole-4-carbonitriles 7 were prepared (X). A... 

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