申请人:Ciba-Geigy Corporation
公开号:US04579691A1
公开(公告)日:1986-04-01
When applied as safeners, the haloacylaminoalkylphosphinates, haloacylaminoalkylphosphinates and haloacylaminoalkylphosphine oxides of the formula I below are able to protect cultivated plants from the phytotoxic effects of herbicides. Suitable crops are preferably sorghum, cereals, rice, maize and soya beans and the herbicides employed are chloroacetanilides and thiocarbamates. The haloacylaminoalkylphosphonates, haloacylaminoalkylphosphinates and haloacylaminoalkylphosphine oxides have the formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkenyloxy, C.sub.2 -C.sub.4 alkynyloxy, C.sub.1 -C.sub.4 haloalkyl, C.sub.2 -C.sub.8 alkoxyalkoxy or C.sub.1 -C.sub.4 cyanoalkoxy, R.sub.2 is hydrogen or a substituent as defined for R.sub.1, R.sub.3 and R.sub.4 are each independently hydrogen, C.sub.1 -C.sub.4 alkyl or one of R.sub.3 and R.sub.4 is also a radical ##STR2## or both taken together with the carbon atom to which they are attached are also a C.sub.3 -C.sub.11 cycloalkyl radical, R.sub.5 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.2 -C.sub.4 alkynyl, C.sub.2 -C.sub.8 alkoxyalkyl, C.sub.1 -C.sub.4 haloalkoxy or aralkyl, R.sub.6 is hydrogen or C.sub.1 -C.sub.4 alkyl, X.sub.1 and X.sub.2 are each independently halogen or one of X.sub.1 and X.sub.2 is also hydrogen, and n is 1, 2 or 3.
当作为安全剂应用时,以下公式I中的卤代酰氨基烷基膦酸酯、卤代酰氨基烷基膦酸酯和卤代酰氨基烷基膦氧化物能够保护栽培植物免受除草剂的植物毒性影响。适合的作物主要是高粱、谷物、稻米、玉米和大豆,所使用的除草剂是氯乙基苯胺和硫代氨基甲酸酯。卤代酰氨基烷基膦酸酯、卤代酰氨基烷基膦酸酯和卤代酰氨基烷基膦氧化物具有以下公式I##STR1##其中R.sub.1是C.sub.1 -C.sub.4烷基、C.sub.1 -C.sub.4烷氧基、C.sub.2 -C.sub.4烯氧基、C.sub.2 -C.sub.4炔氧基、C.sub.1 -C.sub.4卤代烷基、C.sub.2 -C.sub.8烷氧基烷氧基或C.sub.1 -C.sub.4氰基烷氧基,R.sub.2是氢或类似R.sub.1定义的取代基,R.sub.3和R.sub.4分别独立地是氢、C.sub.1 -C.sub.4烷基或R.sub.3和R.sub.4中的一个也是基团##STR2##或者两者与它们连接的碳原子一起也是一个C.sub.3 -C.sub.11环烷基基团,R.sub.5是氢、C.sub.1 -C.sub.4烷基、C.sub.3 -C.sub.7环烷基、C.sub.2 -C.sub.4烯基、C.sub.2 -C.sub.4炔基、C.sub.2 -C.sub.8烷氧基烷基、C.sub.1 -C.sub.4卤代烷氧基或芳基烷基,R.sub.6是氢或C.sub.1 -C.sub.4烷基,X.sub.1和X.sub.2各自独立地是卤素或X.sub.1和X.sub.2中的一个也是氢,n为1、2或3。