Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otsuka Chemical Co Ltd
Otsuka Kagaku Yakuhin KK
Original Assignee
Otsuka Chemical Co Ltd
Otsuka Kagaku Yakuhin KK
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Filing date
Publication date
Application filed by Otsuka Chemical Co Ltd, Otsuka Kagaku Yakuhin KKfiledCriticalOtsuka Chemical Co Ltd
Priority to JP6498581ApriorityCriticalpatent/JPS57179193A/en
Publication of JPS57179193ApublicationCriticalpatent/JPS57179193A/en
Agricultural Chemicals And Associated Chemicals
(AREA)
Abstract
NEW MATERIAL:A 2,3-dihydro-2,2-dimethylbanzofuran-7-yl N-(N-substituted-N- phosphonoaminosulfinyl)-N-methylcarbamate derivative of formulaI(R1 is 1W6C alkyl, phenyl, 2W6C alkoxycarbonylmethyl; R2 is 1W3C alkoxy; X is O, S.).
USE: It has excellent control effect against insect pests, mites, nematodes known as pests in the fields of agriculture, forestry and sanitation.
PREPARATION: The reaction of 2,3-dihydro-2,2-dimethylbenzofuran-7-yl N-methylcarbamate of formula II with thionyl chloride gives 2,3-dihydro-2,2-dimethylbenzofuran-7-yl N-(chlorosulfinyl)-N-methylcarbamate of formula III and finaly, the product is made to react with a phosphoramidate of formula IV such as diethyl N-methylphosphoramidate.