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 preparation

Info

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
Application number
JP8152579A
Other languages
Japanese (ja)
Other versions
JPS6362511B2 (en
Inventor
Koichi Kawamura
Shunkai Katsuyama
Hideo Sato
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP8152579A priority Critical patent/JPS567781A/en
Priority to DE19803011279 priority patent/DE3011279A1/en
Priority to US06/135,030 priority patent/US4343948A/en
Publication of JPS567781A publication Critical patent/JPS567781A/en
Publication of JPS6362511B2 publication Critical patent/JPS6362511B2/ja
Granted legal-status Critical Current

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  • 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
JP8152579A 1979-03-28 1979-06-29 2,6-di-t-butyl-4h-thiopyran-4-one and its preparation Granted JPS567781A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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