申请人:BASF Aktiengesellschaft
公开号:US06175007B1
公开(公告)日:2001-01-16
Phosphonic acid compounds I
wherein
Eth is optionally substituted 1,2-ethynediyl, ethanediyl or ethene-1,2-diyl;
Y1 is oxygen or sulfur;
Y2 is oxygen, sulfur or —N(R6)—;
Y3 is oxygen, sulfur or —N(R7)—;
R1, R2, R6 and R7 are hydrogen or
optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, phenyl or heterocyclyl, or
R1 and R2, R1 and R6, R2 and R7 together are optionally substituted 1,2-ethanediyl, 1,3-propylene, tetramethylene, pentamethylene or ethyleneoxyethylene, or
R1 and R2 together are optionally substituted 1,2-phenylene;
R3 is cyano, halogen, alkyl, haloalkyl, alkoxy or haloalkoxy;
R4 is hydrogen or halogen, and
R5 is a heterocycle &PHgr;1 to &PHgr;22 as defined in the specification,
their manufacture and intermediates therefore. The phosphonic acid compounds are effective against unwanted plants and act as desiccants and defoliants.
磷酸化合物 I
其中
Eth 可选择地取代为 1,2-乙炔基、乙二基或乙烯-1,2-二基;
Y1 为氧或硫;
Y2 为氧、硫或—N(R6)—;
Y3 为氧、硫或—N(R7)—;
R1、R2、R6 和 R7 为氢或
可选择地取代的烷基、烯基、炔基、环烷基、苯基或杂环基,或
R1 和 R2、R1 和 R6、R2 和 R7 一起可选择地取代为 1,2-乙二基、1,3-丙二基、四亚甲基、五亚甲基或乙烯氧基乙烯,或
R1 和 R2 一起可选择地取代为 1,2-苯基;
R3 为氰基、卤素、烷基、卤代烷基、烷氧基或卤代烷氧基;
R4 为氢或卤素,且
R5 为规范中定义的杂环 &PHgr;1 至 &PHgr;22,
它们的制备及其中间体。这些磷酸化合物对不受欢迎的植物有效,并起到脱水剂和落叶剂的作用。