JPS57185237A - Preparation of 2,5-dihalo-1,4-benzoquinone-3,6-dicarboxylic diester - Google Patents

Preparation of 2,5-dihalo-1,4-benzoquinone-3,6-dicarboxylic diester

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Publication number
JPS57185237A
JPS57185237A JP6935481A JP6935481A JPS57185237A JP S57185237 A JPS57185237 A JP S57185237A JP 6935481 A JP6935481 A JP 6935481A JP 6935481 A JP6935481 A JP 6935481A JP S57185237 A JPS57185237 A JP S57185237A
Authority
JP
Japan
Prior art keywords
cyclohexanedione
dialkoxycarbonyl
halogen
dihalo
benzoquinone
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.)
Pending
Application number
JP6935481A
Other languages
Japanese (ja)
Inventor
Masao Imai
Hideki Ikuta
Hiroyuki Akahori
Kiyoharu Hasegawa
Makoto Asano
Michihiro Tsujimoto
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP6935481A priority Critical patent/JPS57185237A/en
Publication of JPS57185237A publication Critical patent/JPS57185237A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain the titled compound in high yield and purity without taking out an intermediate product, by halogenating and oxidizing any 2,5-dialkoxycarbonyl-1,4-cyclohexanedione in a nonpolar inert organic solvent continuously.
CONSTITUTION: A 2, 5-dialkoxycarbonyl-1, 4-cyclohexanedione, e.g. 2, 5-diethoxycarbonyl-1,4-cyclohexanedione, of formulaI (R is 1W12C alkyl) is continuously halogenated and oxidized with a halogen, e.g. bromine, in a nonpolar inert organic solvent, e.g. dichloromethane, chloroform or carbon tetrachloride, to give the aimed compound of formula II (X is halogen) without taking out the 1, 4- hydroquinone derivative formed as an intermediate.
EFFECT: Easily preparable in a short time.
USE: Organic oxidizing agents, intermediates for various important compounds, etc.
COPYRIGHT: (C)1982,JPO&Japio
JP6935481A 1981-05-11 1981-05-11 Preparation of 2,5-dihalo-1,4-benzoquinone-3,6-dicarboxylic diester Pending JPS57185237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6935481A JPS57185237A (en) 1981-05-11 1981-05-11 Preparation of 2,5-dihalo-1,4-benzoquinone-3,6-dicarboxylic diester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6935481A JPS57185237A (en) 1981-05-11 1981-05-11 Preparation of 2,5-dihalo-1,4-benzoquinone-3,6-dicarboxylic diester

Publications (1)

Publication Number Publication Date
JPS57185237A true JPS57185237A (en) 1982-11-15

Family

ID=13400130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6935481A Pending JPS57185237A (en) 1981-05-11 1981-05-11 Preparation of 2,5-dihalo-1,4-benzoquinone-3,6-dicarboxylic diester

Country Status (1)

Country Link
JP (1) JPS57185237A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4735744A (en) * 1984-06-07 1988-04-05 Mitsui Toatsu Chemicals, Incorporated Novel benzoquinone derivatives and production process thereof as well as use as color-developers suitable for recording materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4735744A (en) * 1984-06-07 1988-04-05 Mitsui Toatsu Chemicals, Incorporated Novel benzoquinone derivatives and production process thereof as well as use as color-developers suitable for recording materials

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