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
- OTVZGAXESBAAQQ-UHFFFAOYSA-N pyrazine-2,3-dicarbonitrile Chemical class N#CC1=NC=CN=C1C#N OTVZGAXESBAAQQ-UHFFFAOYSA-N 0.000 title abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 4
- 241000196324 Embryophyta Species 0.000 abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 230000002363 herbicidal effect Effects 0.000 abstract 2
- 239000004009 herbicide Substances 0.000 abstract 2
- 244000058871 Echinochloa crus-galli Species 0.000 abstract 1
- 235000011999 Panicum crusgalli Nutrition 0.000 abstract 1
- 241000209504 Poaceae Species 0.000 abstract 1
- 125000003342 alkenyl group Chemical group 0.000 abstract 1
- 125000000304 alkynyl group Chemical group 0.000 abstract 1
- 125000004093 cyano group Chemical group *C#N 0.000 abstract 1
- -1 e.g. Substances 0.000 abstract 1
- 230000035784 germination Effects 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 125000005843 halogen group Chemical group 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 238000009333 weeding Methods 0.000 abstract 1
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 |
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