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DE69202177D1 - Verfahren zur Herstellung von 3,3',4,4'-Tetramethyldiphenylmethan. - Google Patents

Verfahren zur Herstellung von 3,3',4,4'-Tetramethyldiphenylmethan.

Info

Publication number
DE69202177D1
DE69202177D1 DE69202177T DE69202177T DE69202177D1 DE 69202177 D1 DE69202177 D1 DE 69202177D1 DE 69202177 T DE69202177 T DE 69202177T DE 69202177 T DE69202177 T DE 69202177T DE 69202177 D1 DE69202177 D1 DE 69202177D1
Authority
DE
Germany
Prior art keywords
tetramethyldiphenylmethane
preparation
reaction
obtainable
xylene
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.)
Expired - Lifetime
Application number
DE69202177T
Other languages
English (en)
Other versions
DE69202177T2 (de
Inventor
Shuta Kihara
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co 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 Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Publication of DE69202177D1 publication Critical patent/DE69202177D1/de
Application granted granted Critical
Publication of DE69202177T2 publication Critical patent/DE69202177T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
    • C07C5/2729—Changing the branching point of an open chain or the point of substitution on a ring
    • C07C5/2732—Catalytic processes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/27—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids
    • C07C51/275—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids of hydrocarbyl groups
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
DE69202177T 1991-03-01 1992-02-22 Verfahren zur Herstellung von 3,3',4,4'-Tetramethyldiphenylmethan. Expired - Lifetime DE69202177T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3059444A JP3008990B2 (ja) 1991-03-01 1991-03-01 ３，３’，４，４’−テトラメチルジフェニルメタンの製造方法

Publications (2)

Publication Number Publication Date
DE69202177D1 true DE69202177D1 (de) 1995-06-01
DE69202177T2 DE69202177T2 (de) 1995-09-21

Family

ID=13113468

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69202177T Expired - Lifetime DE69202177T2 (de) 1991-03-01 1992-02-22 Verfahren zur Herstellung von 3,3',4,4'-Tetramethyldiphenylmethan.

Country Status (6)

Country Link
US (1) US5254768A (de)
EP (1) EP0502387B1 (de)
JP (1) JP3008990B2 (de)
AT (1) ATE121715T1 (de)
AU (1) AU641888B2 (de)
DE (1) DE69202177T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI386389B (zh) * 2006-04-04 2013-02-21 Mitsubishi Gas Chemical Co ５-苯基異酞酸之製法
CN101302137B (zh) * 2008-06-27 2010-11-03 上海市合成树脂研究所 3,3’,4,4’-四甲基二苯基烷烃的制备方法
EP3838883B1 (de) * 2019-12-16 2023-07-12 Evonik Fibres GmbH Verfahren zur oxidation eines a 1,1-bis-(3,4-dimethylphenyl)-alkans zu 3,3',4,4'-benzophenontetracarbonsäure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4820537B1 (de) * 1969-05-22 1973-06-21
US4173573A (en) * 1978-07-03 1979-11-06 Gulf Research And Development Company Process for preparing 3,4,3,4-benzophenone-tetracarboxylic dianhydride
US5043512A (en) * 1988-10-06 1991-08-27 Mobil Oil Corp. Alkylaromatic isomerization process
US4962260A (en) * 1989-02-27 1990-10-09 Amoco Corporation Preparation of a dimethylnaphthalene
US5028573A (en) * 1990-01-29 1991-07-02 Mobil Oil Corp. Dual function catalyst and isomerization therewith

Also Published As

Publication number Publication date
EP0502387A1 (de) 1992-09-09
EP0502387B1 (de) 1995-04-26
AU641888B2 (en) 1993-09-30
JPH04275241A (ja) 1992-09-30
US5254768A (en) 1993-10-19
JP3008990B2 (ja) 2000-02-14
AU1090092A (en) 1992-09-03
ATE121715T1 (de) 1995-05-15
DE69202177T2 (de) 1995-09-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition