Fungicidal compositions are provided containing as the active constituent compounds having the formula: ##STR1## wherein each of R and R.sub.1 represents a member of the group consisting of alkyl containing from 1 to 12 carbon atoms, alkyl containing from 1 to 2 carbon atoms substituted with halogen, methoxy or phenyl, alkenyl containing 2 to 3 carbon atoms, alkynyl containing 2 to 3 carbon atoms, aryl containing not more than 10 carbon atoms, aryl containing not more than 10 carbon atoms substituted with halogen or methyl; each X represents halogen, nitro or methyl; n represents an integer from 0 to 3; and Y represents oxygen or sulfur, with the proviso that when Y represents sulfur, each R and R.sub.1 represents alkyl containing 1 to 12 carbon atoms. These compounds may be prepared in accordance with the following equation: ##STR2## wherein R, R.sup.1, X, Y and n are as stated above. These compounds have broad fungicidal activity with very low mammalian toxicity.
提供了杀真菌组合物,其活性成分为具有以下式子的化合物:##STR1## 其中R和R.sub.1分别代表由含有1至12个碳原子的烷基,含有1至2个碳原子的卤素,甲氧基或苯基的取自烷基的一组成员,含有2至3个碳原子的烯基,含有2至3个碳原子的炔基,不含有超过10个碳原子的芳基,或不含有超过10个碳原子的芳基,其被卤素或甲基取代;每个X代表卤素,硝基或甲基;n代表0至3的整数;而Y代表氧或
硫,但当Y代表
硫时,每个R和R.sub.1代表含有1至12个碳原子的烷基。这些化合物可以根据以下方程式制备:##STR2## 其中R、R.sup.1、X、Y和n如上所述。这些化合物具有广泛的杀真菌活性,而哺乳动物毒性非常低。