Xanthone derivatives of the formula I
where the index and the variables are as defined below:
n is 0, 1 or 2;
R1 is alkyl or haloalkyl;
R2,R3 are alkoxy, alkenyloxy or alkynyloxy, or R2 and R3 together form an unsubstituted or substituted oxyalkyleneoxy group;
R4 is halogen, cyano, hydroxyl, amino, mercapto, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylcarbonyloxy or alkylcarbonylthio;
R5 is a group R4, where the groups R5 may be different if n=2;
X, Y are oxygen or sulfur;
Processes for preparing these compounds, compositions comprising them and their use for controlling phytopathogenic harmful fungi are described.
化学式I中的
黄酮衍
生物,其中指数和变量定义如下:n为0、1或2;R1为烷基或卤代烷基;R2、R3为烷氧基、烯基氧基或炔基氧基,或R2和R3共同形成未取代或取代的氧代烷基氧基基团;R4为卤素、
氰基、羟基、
氨基、巯基、烷基、卤代烷基、烷氧基、卤代烷氧基、烷基
硫基、卤代烷基
硫基、烷基羰基氧基或烷基羰基硫基;R5为R4基团,如果n=2,则R5基团可以不同;X、Y为氧或
硫;描述了制备这些化合物的过程、包含它们的组合物以及它们用于控制植物病原真菌的用途。