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Kyowa Gas Chemical Industry Co Ltd
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Kyowa Gas Chemical Industry Co Ltd
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Application filed by Kyowa Gas Chemical Industry Co LtdfiledCriticalKyowa Gas Chemical Industry Co Ltd
Priority to JP1196478ApriorityCriticalpatent/JPS54106479A/en
Publication of JPS54106479ApublicationCriticalpatent/JPS54106479A/en
Publication of JPS6121231B2publicationCriticalpatent/JPS6121231B2/ja
Agricultural Chemicals And Associated Chemicals
(AREA)
Plural Heterocyclic Compounds
(AREA)
Abstract
NEW MATERIAL:A pyrazine derivative of formula I: [A is H, lower alkyl, aryl, or aralkyl group; B is formulas II, III, etc. (R1 and R2 are H, lower alkyl, aryl groups, etc., R1 and R2 do not represent H at the same time, or may form a 3W7 membered heterocyclic group which may have a hetero-atom together with the N atom to which they are linked; R3 is H, lower alkyl group, etc.)].
EXAMPLE: 2,3-Dicyano-5-dimethylaminopyrazine.
USE: Herbicides used before and/or sprouting, for both irrigated paddy field and plowed field treatment, having high applicability to soil and cormophytic treatment, and usable for agriculture and horticulture.
PROCESS: A novel 2,3-dicyano-5-halo-pyrazine derivative of formula IV: (X is halogen) is reacted with a compound of foumula V: (B' is the same as B) to give the objective compound.
COPYRIGHT: (C)1979,JPO&Japio
JP1196478A1978-02-071978-02-07Novel pyrazine derivative and its preparation
GrantedJPS54106479A
(en)