| 摘要 |
NEW MATERIAL:The compound of formula I (R1 is halogen, methyl, F- substituted methyl or nitro; X is -CH2-CH2-, -CH2-O- or -O-CH2-; R2 is F when X is -CH2-CH2- and is H or F when X is -CH2-O or -O-CH2-; n is 1 or 2). EXAMPLE:N-(1,1-Dimethyl-4-indanyl)-2-fluoro-6-trifluoromethylbenzamide. USE:Fungicide effective to sheath blight of rice, rust of wheat, Rhyzoctonia disease, stem rot, etc. PREPARATION:The compound of formula I can be produced by reacting the aniline compound of formula II with the carboxylic acid compound of formula III or its reactive derivative in a solvent such as tetrahydrofuran at a temperature between 0 deg.C and the boiling point of the solvent.
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