| 摘要 |
Novel oxathiazolones of the formula <FORM:1079348/C2/1> where n is 1 or 2 and R is C1- 18 alkyl, C5- 6 cycloalkyl, C1- 8 alkylene, aryl, aralkyl or heterocyclic, optionally substituted by F, Cl, Br, I, NO2, SO3H, COOH, SO2-alkyl, SO2 -aryl, sulphonic ester with C1- 4 alkyl, alkoxy, aroxy, mercapto, alkyl or aryl sulphoxy, or dialkyl-phosphonyl groups are prepared by reacting a carboxylhalogensulphenylhalide XCOSY, where X and Y are each Cl or Br with an amide R(CONH2)n at a temperature of 0 DEG to 180 DEG C. The reaction preferably takes place in an inert solvent, e.g. chloroform, toluence, chlorobenzene, or carbon tetrachloride. Exemplified compounds have R as methyl, chloromethyl, ethylene, phenyl, p-tolyl, p-chlorophenyl, p-nitrophenyl, 2-furyl, trichlorophenyl oxymethyl and 1-naphthyl. The preferred halide reactant is carbonyl chloride sulphenyl chloride.ALSO:Fungicidal compositions contain an oxathiolone of the formula <FORM:1079348/A5-A6/1> where n is 1,2 or 3, and R is C118 alkyl, C5-6 cycloalkyl, C1-8 alkylene, aryl, aralkyl or heterocyclic, optionally substituted by F, Cl, Br, I, NO2, SO3H, COOH, SO3-alkyl, SO3-aryl, sulphuric ester, alkoxy, aroxy, mercapto, alkyl or aryl sulphoxy or dialkyl phosphonyl groups, e.g. the compound where R is phenyl may be dispersed in potato-dextrose agar. |
