NMR STUDIES ON 1-[2-(2,4-DICHLOROPHENYL) -4-ALKYL-1,3-DIOXOLAN-2-YL-METHYL] -1H-1,2,4-TRIAZOLE

The \{\}\+1H and \{\}\+\{13\}C NMR chemical shifts of the title compounds 1～3 were assigned in this article by using 1D and 2D techniques, including \{\}\+1H, \{\}\+\{13\}C, DEPT, \{\}\+1H \{\}\+1H DQF COSY, \{\}\+\{13\}C \{\}\+1H COSY, COLOC and \{\}\+1H \{\}\+1H NOESY spectra. Alkyl groups show considerable effects on \{\}\+1H chemical shifts of the benzene and \{\}\+\{13\}C chemical shifts of the dioxolane. The shift parameters of methyl and propyl substituent effects on the \{\}\+\{13\}C chemical shifts of dioxolane are as follows: 8.12(α), 5.7(β), -1.1(γ)and 11.57(α), 4.77(β), 0.17(γ), respectively. The stereo structures of the synthetic compound 2 and 3, which are widely used in agriculture as a kind of powerful pesticides and fungicides, were elucidated by ~H-~1H NOESY experiments.