JPS562972A - Novel 2,3-dicyanopyrazine derivative - Google Patents

Novel 2,3-dicyanopyrazine derivative

Info

Publication number
JPS562972A
JPS562972A JP7786879A JP7786879A JPS562972A JP S562972 A JPS562972 A JP S562972A JP 7786879 A JP7786879 A JP 7786879A JP 7786879 A JP7786879 A JP 7786879A JP S562972 A JPS562972 A JP S562972A
Authority
JP
Japan
Prior art keywords
formula
compound shown
dicyano
herbicide
reacted
Prior art date
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.)
Granted
Application number
JP7786879A
Other languages
Japanese (ja)
Other versions
JPS6157304B2 (en
Inventor
Tetsuo Takematsu
Hirozo Segawa
Takamaro Miura
Toshihide Ataka
Michio Chatani
Akira Nakamura
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.)
Kyowa Gas Chemical Industry Co Ltd
Original Assignee
Kyowa Gas Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kyowa Gas Chemical Industry Co Ltd filed Critical Kyowa Gas Chemical Industry Co Ltd
Priority to JP7786879A priority Critical patent/JPS562972A/en
Publication of JPS562972A publication Critical patent/JPS562972A/en
Publication of JPS6157304B2 publication Critical patent/JPS6157304B2/ja
Granted legal-status Critical Current

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  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

NEW MATERIAL:A 2,3-dicyanopyrazine derivative shown by the formula I (R1 is H, lower alkyl, or phenyl; Z is O or S; R2 is lower alkenyl, lower alkynyl, or a group shown by the formula II; R3 is cyano or COOR4; R4 is H or lower alkyl).
EXAMPLE: 2,3-Dicyano-5-allyoxy-6-ethylpyrazine.
USE: A herbicide. Having an action to control the germination of weed seeds and/or action to kill the stalks and leaves of weeds, especially weeding selectively Echinochloa crus-galli Beauv. var. praticola OHWI, a typical weed of true grasses, and advantageously usable as a herbicide for a paddy field.
PROCESS: A 2,3-dicyano-5-halophrazine derivative shown by the formula III (X is halogen) is reacted with a compound shown by the formula HZ-R2 in an inner solvent, e.g., acetone, etc. in a temperature range at not higher than about 100°C, preferably -15°C to room temperature to give a compound shown by the formula I. Preferably 1mol of the compound shown by the formula III is reacted with equimolar to three times molar quantity of the compound shown by the formula HZ-R2.
COPYRIGHT: (C)1981,JPO&Japio
JP7786879A 1979-06-20 1979-06-20 Novel 2,3-dicyanopyrazine derivative Granted JPS562972A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7786879A JPS562972A (en) 1979-06-20 1979-06-20 Novel 2,3-dicyanopyrazine derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7786879A JPS562972A (en) 1979-06-20 1979-06-20 Novel 2,3-dicyanopyrazine derivative

Publications (2)

Publication Number Publication Date
JPS562972A true JPS562972A (en) 1981-01-13
JPS6157304B2 JPS6157304B2 (en) 1986-12-06

Family

ID=13646026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7786879A Granted JPS562972A (en) 1979-06-20 1979-06-20 Novel 2,3-dicyanopyrazine derivative

Country Status (1)

Country Link
JP (1) JPS562972A (en)

Also Published As

Publication number Publication date
JPS6157304B2 (en) 1986-12-06

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