申请人:ELI LILLY AND COMPANY
公开号:EP0208431A1
公开(公告)日:1987-01-14
Plants are protected from the damaging effects of Phycomycetous fungi by a series of pyridazines having halo-branched-alkyl or halo-branched-alkyl-silyl groups. The pyridazines have the formula
wherein
R3 is chloro, bromo, methyl, cyano or iodo;
R is chloro, bromo, iodo, methyl, cyano or furan-2- rlmethoxy;
R' is hydrogen, methyl, ethyl or n-propyl;
R2 is
X is fluoro, chloro, bromo or iodo;
X' and X2 independently represent X or hydrogen, provided that no more than one of X1 and X2 is hydrogen; ,
R4 is hydrogen, chloro, bromo, methyl or ethyl;
R5 is hydrogen, chloro, methyl, ethyl, chloromethyl or dichloromethyl;
or
R4 and R5 combine with the group to which they are attached to form a C3-C7 cycloalkyl group substituted with a R1 group;
R6 is hydrogen, chloro, bromo, methyl or ethyl;
R7 is hydrogen, methyl, ethyl, chloromethyl or dichloromethyl;
one of m and n is 0 or 1, and the other is 0;
p is 0-4.
一系列具有卤代溴化烷基或卤代溴化烷基硅基的哒嗪类化合物可以保护植物免受植霉菌的损害。这些哒嗪类化合物的结构式为
其中
R3 是氯、溴、甲基、氰基或碘;
R 是氯、溴、碘、甲基、氰基或呋喃-2-甲氧基;
R' 是氢、甲基、乙基或正丙基;
R2 是
X 是氟、氯、溴或碘;
X' 和 X2 独立地代表 X 或氢,但 X1 和 X2 中不能有一个以上是氢; 、
R4 是氢、氯、溴、甲基或乙基;
R5 是氢、氯、甲基、乙基、氯甲基或二氯甲基;
或
R4 和 R5 与它们所连接的基团结合形成一个被 R1 基团取代的 C3-C7 环烷基;
R6 是氢、氯、溴、甲基或乙基;
R7 是氢、甲基、乙基、氯甲基或二氯甲基;
m 和 n 中的一个为 0 或 1,另一个为 0;
p 为 0-4。