JPS5738778A - Novel cyanopyrazine derivative - Google Patents

Novel cyanopyrazine derivative

Info

Publication number
JPS5738778A
JPS5738778A JP11324380A JP11324380A JPS5738778A JP S5738778 A JPS5738778 A JP S5738778A JP 11324380 A JP11324380 A JP 11324380A JP 11324380 A JP11324380 A JP 11324380A JP S5738778 A JPS5738778 A JP S5738778A
Authority
JP
Japan
Prior art keywords
formula
compound shown
weeds
give
herbicide
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
JP11324380A
Other languages
Japanese (ja)
Other versions
JPS6241592B2 (en
Inventor
Akira Nakamura
Matsuo Ono
Shigeo Aoki
Toshihide Ataka
Yasuhiro Ogino
Hirozo Segawa
Tetsuo Takematsu
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 JP11324380A priority Critical patent/JPS5738778A/en
Publication of JPS5738778A publication Critical patent/JPS5738778A/en
Publication of JPS6241592B2 publication Critical patent/JPS6241592B2/ja
Granted legal-status Critical Current

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  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

NEW MATERIAL:A 2-cyanopyrazine derivative shown by the formula I (R1 is ethyl, or n-propyl; R2 is H, halogen, or methyl).
EXAMPLE: 2-Cyano-5-n-propylamino-6-m-chlorophenylpyrazine.
USE: A herbicide. Controlling the germination of seed of weeds, destroying the stalks and leaves of weeds, having improved effects of soil treatment of paddy field through flooding, foliar treatment of weeds in their growth period, and soil treatment of a plowed field, as a herbicide before and/or after germination, especially advantageous as a herbicide for a paddy field. Having no pytotoxicity to rice plant and effective for controlling an annual weed, e.g., "Echinochloa crus-galli" Beauv. var. "practicola" Ohwi., etc.
PROCESS: A 2,3-dicyanopyrazine derivative shown by the formula II is hydrolyzed with an alkali metal hydroxide, etc. in a solvent, e.g., methanol, etc., to give a compound shown by the formula III. This compound shown by the formula III is heated in an inert solvent, to give a compound shown by the formula IV, which is dehydrated to give a compound shown by the formula I.
COPYRIGHT: (C)1982,JPO&Japio
JP11324380A 1980-08-18 1980-08-18 Novel cyanopyrazine derivative Granted JPS5738778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11324380A JPS5738778A (en) 1980-08-18 1980-08-18 Novel cyanopyrazine derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11324380A JPS5738778A (en) 1980-08-18 1980-08-18 Novel cyanopyrazine derivative

Publications (2)

Publication Number Publication Date
JPS5738778A true JPS5738778A (en) 1982-03-03
JPS6241592B2 JPS6241592B2 (en) 1987-09-03

Family

ID=14607189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11324380A Granted JPS5738778A (en) 1980-08-18 1980-08-18 Novel cyanopyrazine derivative

Country Status (1)

Country Link
JP (1) JPS5738778A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7691863B2 (en) * 2006-10-04 2010-04-06 Hoffman-La Roche Inc. Pyrazine-2-carboxamide derivatives as CB2 receptor modulators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7691863B2 (en) * 2006-10-04 2010-04-06 Hoffman-La Roche Inc. Pyrazine-2-carboxamide derivatives as CB2 receptor modulators

Also Published As

Publication number Publication date
JPS6241592B2 (en) 1987-09-03

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