5 Pyrimidinol phosphorus esters, and methods for their manufacture, compositions containing those esters and their use as pesticides
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0023841A2
公开(公告)日:1981-02-11
Compounds of the formulas:
and
wherein R is alkylcycloalkyl or cycloalkylalkyl having 4 to 6 carbon atoms; R' is hydrogen, alkyl or alkylthio of 1 to 3 carbons; R" is alkyl having 1 to 4 carbon atoms; X is oxygen or sulfur; and R"' is alkyl of 1 to 2 carbons, alkoxy, alkylthio or monoalkylamino, each with 1 to 4 carbon atoms, or phenyl. The novel 2-cycloalkylalkyl or alkylcycloalkyl pyrimidinols are used in preparing the phosphate compounds which are highly useful insecticides and are particularly valuable when applied to the soil, but are also useful applied to foliage of crops or trees. Especially good control is obtained of corn rootworm, black cutworm, European corn borer, and nematodes. The compounds are conveniently applied in the form of a composition containing a pesticidal carrier such as an inert solvent or a finely divided inert solid in which case the composition is preferably granulated. An effective application rate is in the range of 0.1 to 5 pounds per acre (0.112 to 5.6 kg/hectare) when soil incorporated, and 0.5 to 2000 ppm for foliar applications.
的化合物:
和
其中 R 是具有 4 至 6 个碳原子的烷基环烷基或环烷基烷基;R'是氢、1 至 3 个碳原子的烷基或烷基硫基;R "是具有 1 至 4 个碳原子的烷基;X 是氧或硫;R"'是具有 1 至 2 个碳原子的烷基、烷氧基、烷基硫基或单烷基氨基(各具有 1 至 4 个碳原子)或苯基。新型 2-环烷基烷基或烷基环烷基嘧啶醇可用于制备磷酸盐化合物,这些化合物是非常有用的杀虫剂,尤其适用于土壤,但也适用于作物或树木的叶片。对玉米根虫、黑切虫、欧洲玉米螟和线虫的防治效果尤为显著。这些化合物可以方便地以含有杀虫剂载体(如惰性溶剂或细小的惰性固体)的组合物的形式施用,在这种情况下,组合物最好是颗粒状的。土壤施用的有效施用量为每英亩 0.1 至 5 磅(每公顷 0.112 至 5.6 千克),叶面施用的有效施用量为 0.5 至 2000 ppm。