JPS5528908A - 2,3-dicyano-5-aminopyrazine derivative and its preparation - Google Patents

2,3-dicyano-5-aminopyrazine derivative and its preparation

Info

Publication number
JPS5528908A
JPS5528908A JP10091778A JP10091778A JPS5528908A JP S5528908 A JPS5528908 A JP S5528908A JP 10091778 A JP10091778 A JP 10091778A JP 10091778 A JP10091778 A JP 10091778A JP S5528908 A JPS5528908 A JP S5528908A
Authority
JP
Japan
Prior art keywords
dicyano
derivative
aminopyrazine
give
new material
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
JP10091778A
Other languages
Japanese (ja)
Other versions
JPS6125032B2 (en
Inventor
Akira Nakamura
Michio Chatani
Toshihide Ataka
Hirozo Segawa
Takama Miura
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 JP10091778A priority Critical patent/JPS5528908A/en
Publication of JPS5528908A publication Critical patent/JPS5528908A/en
Publication of JPS6125032B2 publication Critical patent/JPS6125032B2/ja
Granted legal-status Critical Current

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  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

NEW MATERIAL:2,3-Dicyano-5-aminopyrazine derivative I (R is H or lower alkyl).
EXAMPLE: 2,3-Dicyano-5-aminopyrazine.
USE: Intermediates for synthesis of herbicide applicable before and/or after germination, preferably intermediates of 2,3-dicyano-5-alkyl or arylamino-pyrazine herbicides for paddy field, having excellent herbicidal activity.
PROCESS: A 2,3-dicyano-5-hydroxypyrazine derivative II is halogenated with a halogenating agent, e.g. phosphorus oxychloride, etc., in an inert solvent or in the absence of a solvent to give a 2,3-dicyano-5-halopyrazine derivative III (X is halogen) (new material). The derivative III is reacted with aqueous or gaseous ammonia in an inert solvent at room temperature or under cooling for 10 min to 2 hr optionally in the presence of a hydrogen halidetrapping agent to give the desired compound I.
COPYRIGHT: (C)1980,JPO&Japio
JP10091778A 1978-08-21 1978-08-21 2,3-dicyano-5-aminopyrazine derivative and its preparation Granted JPS5528908A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10091778A JPS5528908A (en) 1978-08-21 1978-08-21 2,3-dicyano-5-aminopyrazine derivative and its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10091778A JPS5528908A (en) 1978-08-21 1978-08-21 2,3-dicyano-5-aminopyrazine derivative and its preparation

Publications (2)

Publication Number Publication Date
JPS5528908A true JPS5528908A (en) 1980-02-29
JPS6125032B2 JPS6125032B2 (en) 1986-06-13

Family

ID=14286683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10091778A Granted JPS5528908A (en) 1978-08-21 1978-08-21 2,3-dicyano-5-aminopyrazine derivative and its preparation

Country Status (1)

Country Link
JP (1) JPS5528908A (en)

Also Published As

Publication number Publication date
JPS6125032B2 (en) 1986-06-13

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