JPS567781A - 2,6-di-t-butyl-4h-thiopyran-4-one and its preparation - Google Patents
2,6-di-t-butyl-4h-thiopyran-4-one and its preparationInfo
- Publication number
- JPS567781A JPS567781A JP8152579A JP8152579A JPS567781A JP S567781 A JPS567781 A JP S567781A JP 8152579 A JP8152579 A JP 8152579A JP 8152579 A JP8152579 A JP 8152579A JP S567781 A JPS567781 A JP S567781A
- Authority
- JP
- Japan
- Prior art keywords
- butyl
- formula
- thiopyran
- thiopyrylium
- dye
- 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
NEW MATERIAL:A 2,6-di-t-butyl-4H-thiopyran-4-one shown by the formula I.
USE: A synthetic intermediate for thiopyrylium dye to provide a photoconductive material with high sensitizing ability. Sensitized particles for electrophoretic color electrophotograph comprizing the dye as a sensitizing agent improves color separation from yellow particles to be sensitized by blue.
PROCESS: A 2,6-di-t-butyl-4-(methylthio)thiopyrylium shown by the formula II-1 (Z- is anion) or a 2,6-di-t-butyl-4H-thiopyran-4-thione shown by the formula II-2 is hydrolyzed to give a compound shown by the formula I. The reaction is carried out preferably in a high polar solvent (e.g., dimethyl sulfoxide, hexamethylenephosphoric triamide, etc.) having a dieletric constant 25W200 and a dipole moment 3W5. Both the compounds shown by the formulas II-1 and II-2 are novel substances.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8152579A JPS567781A (en) | 1979-06-29 | 1979-06-29 | 2,6-di-t-butyl-4h-thiopyran-4-one and its preparation |
DE19803011279 DE3011279A1 (en) | 1979-03-28 | 1980-03-24 | NEW 2,6-DI-TERT.-BUTYL-4-METHYLTHIOPYRILIUM SALTS AND THEIR PRODUCTION |
US06/135,030 US4343948A (en) | 1979-03-28 | 1980-03-28 | 2,6-Di-tert-butyl-4-methyl thiopyrylium salt |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8152579A JPS567781A (en) | 1979-06-29 | 1979-06-29 | 2,6-di-t-butyl-4h-thiopyran-4-one and its preparation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS567781A true JPS567781A (en) | 1981-01-27 |
JPS6362511B2 JPS6362511B2 (en) | 1988-12-02 |
Family
ID=13748742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8152579A Granted JPS567781A (en) | 1979-03-28 | 1979-06-29 | 2,6-di-t-butyl-4h-thiopyran-4-one and its preparation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS567781A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01109347A (en) * | 1987-09-30 | 1989-04-26 | Ciba Geigy Ag | Stabilizer for color photographic recording material |
-
1979
- 1979-06-29 JP JP8152579A patent/JPS567781A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01109347A (en) * | 1987-09-30 | 1989-04-26 | Ciba Geigy Ag | Stabilizer for color photographic recording material |
Also Published As
Publication number | Publication date |
---|---|
JPS6362511B2 (en) | 1988-12-02 |
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