Rj. Lu et al., SYNTHESIS OF 1-ARYLAMINOCARBONYL-3-BENZYL THIO-4-CARBETHOXY (OR CYANO)-5-AMINOPYRAZOLE, Gaodeng xuexiao huaxue xuebao, 17(8), 1996, pp. 1231-1234
1-Arylaminocarbonyl-3-benzylthio-4-carbethoxy (or cyano)-5-aminopyrazo
les (3) were synthesized by the reaction of the 5-amino-3-benzylthio-4
-carbethoxy (or cyano) pyrazole with the aryl isocyanate, It was found
that there were great influence of the property and position of subst
ituents X, Yon the chemical shift of H-(N2) in H-1 NMR spectra, By mea
ns of molecular mechanics calculations, the substituent effect on the
chemical shift of H -(N2) was rationalized, The preliminary bioassay s
hows that some compounds have herbicidal activities.