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Takeda Pharmaceutical Co Ltd
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Takeda Chemical Industries Ltd
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Priority to JP3912888ApriorityCriticalpatent/JPS6463A/en
Publication of JPH0163ApublicationCriticalpatent/JPH0163A/en
Publication of JPS6463ApublicationCriticalpatent/JPS6463A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Agricultural Chemicals And Associated Chemicals
(AREA)
Abstract
NEW MATERIAL:A compound shown by formula I [R1 is H or group shown by formula II; R2 is H, OH or alkoxy (with the proviso that R1 and R2 are not H at the same time); R3WR5 and R3'WR5' are H, alkyl or alkoxy; X1 and X2 are H or group shown by formula III (A is O or S; B is O, S or imino which may contain substituent group; R6 hydrocarbon group or heterocyclic group which may contain substituent group; m and n are 0 or 1)] or a salt thereof.
USE: An insecticide and an acaricide effective for controlling sanitary insect pests, insects living in animals and acarids.
PREPARATION: For example, a compound shown by formula IV (R1b is H when R1a is H and R1b is group shown by formula VI when R1a is group shown by formula V; R7 is as shown for R2; R8 is H; R7 and R8 are bonded to form 0 of carbonyl) is reduced with a proper reducing agent to give a corresponding compound shown by formula I.
N-oxy- and thio-alkyl-carbonyloxy-alkyl-pyrrole derivatives and insecticidal, acaricidal and molluscicidal compositions comprising these as active ingredients