JPS5531071A - Preparation of indenothiophene derivative - Google Patents

Preparation of indenothiophene derivative

Info

Publication number
JPS5531071A
JPS5531071A JP9487179A JP9487179A JPS5531071A JP S5531071 A JPS5531071 A JP S5531071A JP 9487179 A JP9487179 A JP 9487179A JP 9487179 A JP9487179 A JP 9487179A JP S5531071 A JPS5531071 A JP S5531071A
Authority
JP
Japan
Prior art keywords
formula
compound
indeno
thiophen
subjected
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
JP9487179A
Other languages
Japanese (ja)
Other versions
JPS5545550B2 (en
Inventor
Mitsuru Hashimoto
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP9487179A priority Critical patent/JPS5531071A/en
Publication of JPS5531071A publication Critical patent/JPS5531071A/en
Publication of JPS5545550B2 publication Critical patent/JPS5545550B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Photoreceptors In Electrophotography (AREA)

Abstract

NEW MATERIAL:A halogen substituted 4H-indeno[1,2-b]thiophen-4-one of formula I: (R1 and R2 are H or NO2; X is halogen).
EXAMPLE: 2-Bromo-6,8-dinitro-4H-indeno[1,2-b]thiophen-4-one.
USE: Photosensitive materials useful as a sensitizer for organic photoconductive materials, e.g. poly-N-vinylcarbazole, particularly as electrographic photosensitive materials for transfer process, to be used repeatedly.
PROCESS: A compound of formula II is reacted with a compound of formula III to give a compound of formula IV, which is hydrolyzed in an aqueous NaOH to form a free carboxyl group. The carboxyl group is subjected to ring closure in the presence of a dehydrating agent or converted to an acid chloride in the presence of thionyl chloride and subjected to ring closure in the presence of a Lewis acid to givea compound of formula V, which is halogenated to form the objective compound of formula I.
COPYRIGHT: (C)1980,JPO&Japio
JP9487179A 1979-07-27 1979-07-27 Preparation of indenothiophene derivative Granted JPS5531071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9487179A JPS5531071A (en) 1979-07-27 1979-07-27 Preparation of indenothiophene derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9487179A JPS5531071A (en) 1979-07-27 1979-07-27 Preparation of indenothiophene derivative

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP8174874A Division JPS5111759A (en) 1974-07-18 1974-07-18 INDENOCHIOFUENJUDOTAINO SEIHO

Publications (2)

Publication Number Publication Date
JPS5531071A true JPS5531071A (en) 1980-03-05
JPS5545550B2 JPS5545550B2 (en) 1980-11-18

Family

ID=14122104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9487179A Granted JPS5531071A (en) 1979-07-27 1979-07-27 Preparation of indenothiophene derivative

Country Status (1)

Country Link
JP (1) JPS5531071A (en)

Also Published As

Publication number Publication date
JPS5545550B2 (en) 1980-11-18

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