| 摘要 |
NEW MATERIAL:The compound of formula [R1 and R2 are methyl or ethyl, or together with adjacent N atom, form 6-membered heterocyclic group having 4-5C alicyclic hydrocarbon group and optionally having O atom; R3 is 1-8C alkyl, cycloalkyl, alkenyl or (halogen-substituted) benzyl, naphthyl, etc.]. EXAMPLE:p-Fluorobenzenesulfonyl N,N-dimethylcarbothioamide. USE:An agricultural and horticultural fungicide. Effective to blast, helminthosporium leaf spot, etc. of paddy rice plant, leaf spot and powdery mildew of wheat, late blight of potato, etc. PREPARATION:The compound of formula can be produced by dissolving N,N- dialkylthiocarbamoyl chloride in an aromatic hydrocarbon such as benzene, toluene, etc., and adding the solution dropwise to an aqueous solution of sodium sulfinate of formula R3-SO2Na at room temperature to effect the reaction of the components. |
