Pyridazinone derivative, its preparation, insecticide, acaricide, nematocide, and fungicide
专利汇可以提供Pyridazinone derivative, its preparation, insecticide, acaricide, nematocide, and fungicide专利检索，专利查询，专利分析的服务。并且NEW MATERIAL:A compound shown by the formula I (R is alkyl; R
1 and R
2 are H, or lower alkyl; R
3 and R
4 are lower alkyl, halogen, lower haloalkyl, nitro, cyano, or alkoxycarbonyl; R
5 is halogen; X and Y are O, or S; m and n are 0W 3).
EXAMPLE: 2-t-Butyl-4-chloro-5-(p-phenoxy)benzyloxy-3(2H)-pyridazinone.
USE: An agricultural and horticultural insecticide, acaricide, nematocide, and fungicide. An agricultural chemical having excellent insecticidal effect on sanitary insect pests such as Nephotettix cincticeps Uhlera, diamond moth, Culex pipiens pallens Coquillett, etc., effective for controlling acarids living in fruits and vegetables, and acarids living in animals, effective for controlling blights of fruits and vegetables such as downy mildew, etc.
PREPARATION: For example, a compound shown by the formula II is reacted with a compound shown by the formula III (Hal is halogen) in a solvent in the presence of an absorbent for a hydrogen halide, to give a compound shown by the formula I .
COPYRIGHT: (C)1985,JPO&Japio，下面是Pyridazinone derivative, its preparation, insecticide, acaricide, nematocide, and fungicide专利的具体信息内容。
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