Carbamoyloxyisooxazole derivatives, their preparation and insecticidal compositions containing them
申请人:SANKYO COMPANY LIMITED
公开号:EP0051877A2
公开(公告)日:1982-05-19
Compounds of formula (I):
(wherein:
R' represents a hydrogen atom or a halogen atom;
R2 represents a C,-C6 alkyl group; and
A represents an oxygen atom, a sulphur atom, a sulphinyl group or a sulphonyl group) have good insecticidal activity coupled with a low toxicity to warm-blooded animals. Compounds in which A represents an oxygen or sulphur atom can be prepared by reacting a corresponding alkali metal alkoxide or mercaptide with the corresponding 3-dimethylcarbamoyloxy--5-halomethylisoxazole derivative, whilst compounds where A represents a sulphinyl or sulphonyl group may be prepared by oxidizing the corresponding compound wherein A represents a sulphur atom. The compounds may be formulated with conventional insecticidal carriers or diluents and exhibit a synergistic increase in activity when combined with various known organic phosphate and carbamate insecticides.
式(I)化合物:
其中
R' 代表氢原子或卤素原子;
R2 代表 C,-C6 烷基;以及
A 代表氧原子、硫原子、亚砜基或磺酰基)具有良好的杀虫活性,同时对温血动物毒性低。A代表氧原子或硫原子的化合物可以通过相应的碱金属氧化物或硫醇与相应的3-二甲基氨基甲酰氧基--5-卤甲基异噁唑衍生物反应来制备,而A代表亚磺酰基或磺酰基的化合物可以通过氧化相应的A代表硫原子的化合物来制备。这些化合物可与传统的杀虫载体或稀释剂配制,当与各种已知的有机磷酸酯和氨基甲酸酯杀虫剂结合使用时,可协同提高活性。