FIELD: chemistry.
SUBSTANCE: invention concerns new substituted 2-(1,2,4-triazole-1-ylmethyl)-6-benzylidene-1,4-dioxaspiro[4.5]decanes represented by the formula I: 
where R1, R=H, Hal etc., m, n=0-5, and with the process of their production involving condensation of substituted 2-benzylidene cyclohexanone II with 3-halogen-1,3-propanediol by acid catalysis with azeotropic distillation of water in organic dissolvent. Substituted 2-halogenmethyl-6-benzylidene-1,4-dioxaspiro[4.5]decanes represented by the formula III are obtained and further alkylated by 1,2,4-triazolates of alkali metals in polar aprotic dissolvent agent at the temperature of 60 to 180°C. 
. The invention also concerns fungicide composition containing substituted 2- (1,2,4-triazole-1-ylmethyl)-6-benzylidene-1,4-dioxaspiro[4.5]decanes represented by the formula I, e.g., 2-(1,2,4-triazole-1-ylmethyl)-6-(4-chlorobenzylidene)-10-methyl-1,4-dioxaspiro[4.5]decane oxalate, which possesses higher fungitoxicity than standard triadimephon.
EFFECT: simplifies production and increases output.
3 cl, 1 tbl, 8 ex
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