JPS5767577A - Production of 2,3-dicyano-1,4-dithia-9,10-anthraquinone - Google Patents
Production of 2,3-dicyano-1,4-dithia-9,10-anthraquinoneInfo
- Publication number
- JPS5767577A JPS5767577A JP14239180A JP14239180A JPS5767577A JP S5767577 A JPS5767577 A JP S5767577A JP 14239180 A JP14239180 A JP 14239180A JP 14239180 A JP14239180 A JP 14239180A JP S5767577 A JPS5767577 A JP S5767577A
- Authority
- JP
- Japan
- Prior art keywords
- dicyano
- polar solvent
- reaction
- dithia
- anthraquinone
- 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
- Heterocyclic Compounds Containing Sulfur Atoms (AREA)
Abstract
PURPOSE: The reaction product from 1,4-naphthoquinone and an alkali metal salt of 1,2-dicyano-1,2-dimercaptoethene is oxidized in a polar solvent with an oxidizing agent to produce the titled substance of high purity.
CONSTITUTION: The reaction of 1,4-naphthoquinone (NQ) with an alkali metal salt of 1,2-dicyano-1,2-dimercaptoethene is conducted in an aqueous medium at 4W7pH and 0W5°C to give 2,3-dicyano-1,4-dithia-9,10-anthraquinone. The reaction mixture including the compound is oxidized in a polar solvent such as alcohol with an oxidizing agent such as ferric chloride at 0W60°C to give the titled substance. NQ used in the reaction is is preferably fine particles of 60 mesh through.
EFFECT: The use of polar solvent prevents the sudden decline of purity and yield caused by change in pH.
USE: A fungicide against bacterial leaf blight in rice plant.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14239180A JPS5767577A (en) | 1980-10-14 | 1980-10-14 | Production of 2,3-dicyano-1,4-dithia-9,10-anthraquinone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14239180A JPS5767577A (en) | 1980-10-14 | 1980-10-14 | Production of 2,3-dicyano-1,4-dithia-9,10-anthraquinone |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5767577A true JPS5767577A (en) | 1982-04-24 |
JPH0128032B2 JPH0128032B2 (en) | 1989-05-31 |
Family
ID=15314265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14239180A Granted JPS5767577A (en) | 1980-10-14 | 1980-10-14 | Production of 2,3-dicyano-1,4-dithia-9,10-anthraquinone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5767577A (en) |
-
1980
- 1980-10-14 JP JP14239180A patent/JPS5767577A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0128032B2 (en) | 1989-05-31 |
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