| 摘要 |
NEW MATERIAL:An imidazole derivative shown by the formula I (R<1>-R<3> are H, or lower alkyl; R<4> is alkyl, lower alkenyl, or cycloalkyl). EXAMPLE:N-(1-Isobutoxycarbonylpropyl)-N-imidazolycarbonylbenzylamine. USE:An agricultural and horticultral fungicide. Showing controlling activity against blast of rice plant, leaf-blight of sesame, sheath blight, late blight of tomato, powdery mildew of cucumber, stem rot of kidney bean, rust of wheat, etc., also showing seed disinfecting effect on bakanae disease of rice plant and helminthosporium leaf spot. PREPARATION:A benzylamine shown by the formula II is reacted with a compound shown by the formula III in the presence of a base to give a compound shown by the formula IV, this compound is reacted with trichloromethyl chloroformate in the presence of triethylamine in toluene to give a compound shown by the formula V. Then, this compound is reacted with imidazole in a solvent of dimethylformamide in the presence of a base to give a compound shown by the formula I .
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