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A series of novel 1,3-substituted-5-chloropyrazole-4-carboxylic acid oxime esters was synthesized. Their chemical strictures were elucidated on ¹H, ^(13)C-NMR and IR spectra, Fifteen such compounds were screened for their antifungal activity against R. solani, P. oryzae, B. cinerea, P. graminearum, P. capsici and G. cingulata. The results showed that pyrazole-oxime esters with electrcn withdrawing grouFs(III, XIII, XIV) had better biological activities than these with electron releasing groups.
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