JPS562972A - Novel 2,3-dicyanopyrazine derivative - Google Patents
Novel 2,3-dicyanopyrazine derivativeInfo
- 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
Links
Landscapes
- 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
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) |
-
1979
- 1979-06-20 JP JP7786879A patent/JPS562972A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6157304B2 (en) | 1986-12-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS55139306A (en) | Plant growth regulator | |
JPS5772903A (en) | Pyrazole herbicide | |
JPS5764671A (en) | Tetrahydrophthlimides and herbicide containing said compound as active component | |
JPS562972A (en) | Novel 2,3-dicyanopyrazine derivative | |
JPS5531039A (en) | Oximecarbamate derivative, its preparation, and microbicide and herbicide containing the same | |
JPS5543014A (en) | N-benzyl-haloacetamide derivative, its preparation, and herbicide comprising it as active constituent | |
JPS5564553A (en) | N-benzyl-trimethylacetamide derivative, its preparation, and herbicide containing the same as effective component | |
US3972909A (en) | α,α-Dimethylbenzylureas and use as herbicides | |
JPS57167972A (en) | Chloroacetylaminopyrazole derivative, its preparation, and herbicide comprising it | |
JPS5632460A (en) | Acyl-pyridyl-thiourea derivative, its preparation, fungicide for agriculture and gardening comprising it as active ingredient | |
JPS5492978A (en) | Phenoxypyrimidine derivative | |
JPS54160344A (en) | Novel phosphoric acid anilide derivative | |
JPS5738778A (en) | Novel cyanopyrazine derivative | |
JPS57209274A (en) | Urea derivative, its preparation and its use | |
JPS56164161A (en) | Preparation of 2-cyclohexene-1-one derivative | |
CA1147340A (en) | Fungicidal 3-(n-acyl-n-arylamino)- and 3- (n-thionoacyl-n-arylamino)-gamma- butyrolactones and gamma-thiobutyrolactones | |
JPS5738776A (en) | Novel dicyanodihydropyrazine derivative | |
FR2351977A1 (en) | NEWS 1-BENZOTHIAZOLYLIMIDAZOLIDINONES AND THEIR USE AS HERBICIDES | |
JPS56167679A (en) | N-substituted-tert-butylacetamide derivative, its preparation and herbicide containing the same as active constituent | |
JPS54106480A (en) | Novel 2,3-dicyano-5-halopyrazine derivative and its preparation | |
JPS55149239A (en) | N-(alpha,alpha-dimethylbenzyl)phenylacetamide derivative, its preparation, and herbicide containing it as effective component | |
JPS56156246A (en) | Benzamide derivative and herbicide comprising it | |
JPS5564567A (en) | Diphenyl ether derivative, and herbicide containing diphenyl ether derivative | |
JPS5632467A (en) | Delta2-1,2,4-triazolin-5-one and its use | |
JPS5671058A (en) | Phenoxyphenylcarbamic ester derivative |