JPS56147741A - Preparation of 2,3-dialkoxy-5-methyl-1,4-benzoquinone - Google Patents

Preparation of 2,3-dialkoxy-5-methyl-1,4-benzoquinone

Info

Publication number
JPS56147741A
JPS56147741A JP4965080A JP4965080A JPS56147741A JP S56147741 A JPS56147741 A JP S56147741A JP 4965080 A JP4965080 A JP 4965080A JP 4965080 A JP4965080 A JP 4965080A JP S56147741 A JPS56147741 A JP S56147741A
Authority
JP
Japan
Prior art keywords
raw material
dialkoxy
benzoquinone
methyl
tetraalkoxytoluene
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
JP4965080A
Other languages
Japanese (ja)
Other versions
JPS632249B2 (en
Inventor
Atsuo Akata
Yasuo Shimizu
Ichiro Kawahara
Shigeru Torii
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.)
Otsuka Chemical Co Ltd
Otsuka Kagaku Yakuhin KK
Original Assignee
Otsuka Chemical Co Ltd
Otsuka Kagaku Yakuhin KK
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 Otsuka Chemical Co Ltd, Otsuka Kagaku Yakuhin KK filed Critical Otsuka Chemical Co Ltd
Priority to JP4965080A priority Critical patent/JPS56147741A/en
Publication of JPS56147741A publication Critical patent/JPS56147741A/en
Publication of JPS632249B2 publication Critical patent/JPS632249B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To prepare the titled compound useful as a synthetic raw material of ubiquinones, in high yield and purity, by using an easily available 2,3,4,5-tetraalkoxytoluene as a starting raw material, and oxidizing the raw material.
CONSTITUTION: A 2,3,4,5-tetraalkoxytoluene of formula I (R is lower alkyl) is converted to a 2,3-dialkoxy-5-methyl-1,4-benzoquinone of formula II by electrolytic oxidation or chemical oxidation. The electrolytic oxidation is pref. carried out in a medium such as methanol, ethanol, propyl alcohol, dioxane, tetrahydrofuran, formic acid, acetic acid, etc., using NaOH, KOH, etc. as supporting electrolytes, and the chemical oxidation is pref. conducted using potassium bichromate, ferric chloride, ferric sulfate, chromic anhydride, etc.
COPYRIGHT: (C)1981,JPO&Japio
JP4965080A 1980-04-15 1980-04-15 Preparation of 2,3-dialkoxy-5-methyl-1,4-benzoquinone Granted JPS56147741A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4965080A JPS56147741A (en) 1980-04-15 1980-04-15 Preparation of 2,3-dialkoxy-5-methyl-1,4-benzoquinone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4965080A JPS56147741A (en) 1980-04-15 1980-04-15 Preparation of 2,3-dialkoxy-5-methyl-1,4-benzoquinone

Publications (2)

Publication Number Publication Date
JPS56147741A true JPS56147741A (en) 1981-11-16
JPS632249B2 JPS632249B2 (en) 1988-01-18

Family

ID=12837063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4965080A Granted JPS56147741A (en) 1980-04-15 1980-04-15 Preparation of 2,3-dialkoxy-5-methyl-1,4-benzoquinone

Country Status (1)

Country Link
JP (1) JPS56147741A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5466346A (en) * 1994-05-02 1995-11-14 National Science Council Quinone synthesized from an aromatic compound in an undivided electrochemical cell

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5466346A (en) * 1994-05-02 1995-11-14 National Science Council Quinone synthesized from an aromatic compound in an undivided electrochemical cell

Also Published As

Publication number Publication date
JPS632249B2 (en) 1988-01-18

Similar Documents

Publication Publication Date Title
JPS56147741A (en) Preparation of 2,3-dialkoxy-5-methyl-1,4-benzoquinone
JPS5517349A (en) Production of diterpene derivative
JPS53137908A (en) Syntheses of monochloropinacolone and cyanopinacolone
DE3164871D1 (en) Preparation of intermediates of carbaprostacyclines
JPS53105413A (en) Preparation of alpha-branched aliphatic carboxylic acid
JPS5770836A (en) Preparation of cinnamic acid ester
JPS5640643A (en) Preparation of ethyl trans-2-decen-4-ynoate
JPS56104839A (en) Preparation of acetic acid and/or methyl acetate
JPS5721368A (en) Production of n-hydroxyalkylpiperidine
JPS5669385A (en) Preparation of 3,5-dialcoxy-4-hydroxy benzaldehyde
JPS5610135A (en) Preparation of di-n-propylmalonic acid
JPS56108743A (en) 3-nitro-2-hydroxy-4-phenylbutyric acid derivative, its ester and preparation thereof
IE792291L (en) Process for the manufacture of 5-mercapto-1,2,3-triazoles.
JPS55147234A (en) Preparation of (+)-2-isopropyl-5-methyl-cyclohexanone
JPS54112807A (en) Preparation of alpha-thio-gamma,delta-unsaturated carbonyl compounds
JPS5587743A (en) Preparation of cyclohexanecarboxylic acid derivative
JPS5683486A (en) Preparation of 1,3-benzodioxol-5-ol
JPS5481253A (en) 2-methyl-2-hydroxyperhydrotriquinacene
FR2387978A1 (en) Methyl-thienyl:acetate prepn. from acetyl-thiophene - by oxidn. with perchloric acid in methanol in presence of thallic nitrate
JPS57149257A (en) 4-benzyloxyphenylacetamide
JPS5538309A (en) Nicotine derivative
JPS56131547A (en) Preparation of sesquiterpene derivative
JPS5373290A (en) Preparation of polyester resin of low acid value
JPS55167249A (en) Preparation of alpha-ketocarboxylic acid
JPS56113736A (en) Preparation of 2-arylalkanoic acid