ATE121715T1 - Verfahren zur herstellung von 3,3',4,4'- tetramethyldiphenylmethan. - Google Patents
Verfahren zur herstellung von 3,3',4,4'- tetramethyldiphenylmethan.Info
- Publication number
- ATE121715T1 ATE121715T1 AT92102998T AT92102998T ATE121715T1 AT E121715 T1 ATE121715 T1 AT E121715T1 AT 92102998 T AT92102998 T AT 92102998T AT 92102998 T AT92102998 T AT 92102998T AT E121715 T1 ATE121715 T1 AT E121715T1
- Authority
- AT
- Austria
- Prior art keywords
- tetramethyldiphenylmethane
- producing
- reaction
- obtainable
- xylene
- Prior art date
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)
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 (1)
Publication Number | Publication Date |
---|---|
ATE121715T1 true ATE121715T1 (de) | 1995-05-15 |
Family
ID=13113468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT92102998T ATE121715T1 (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)
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)
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 |
-
1991
- 1991-03-01 JP JP3059444A patent/JP3008990B2/ja not_active Expired - Fee Related
-
1992
- 1992-02-07 US US07/832,712 patent/US5254768A/en not_active Expired - Lifetime
- 1992-02-12 AU AU10900/92A patent/AU641888B2/en not_active Ceased
- 1992-02-22 EP EP92102998A patent/EP0502387B1/de not_active Expired - Lifetime
- 1992-02-22 AT AT92102998T patent/ATE121715T1/de not_active IP Right Cessation
- 1992-02-22 DE DE69202177T patent/DE69202177T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69202177D1 (de) | 1995-06-01 |
AU1090092A (en) | 1992-09-03 |
JP3008990B2 (ja) | 2000-02-14 |
JPH04275241A (ja) | 1992-09-30 |
DE69202177T2 (de) | 1995-09-21 |
EP0502387A1 (de) | 1992-09-09 |
US5254768A (en) | 1993-10-19 |
AU641888B2 (en) | 1993-09-30 |
EP0502387B1 (de) | 1995-04-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE186931T1 (de) | Herstellung von polysuccinimid durch thermische polymerisation von maleamicsäure | |
DE69209770D1 (de) | Verfahren zur Herstellung von Aldehyden und von deren Abkömmlingen | |
DE69221610D1 (de) | Verfahren zur herstellung von terephtalsäure | |
DE69412326D1 (de) | Verfahren zur Herstellung von Essigsäure | |
DE3887469D1 (de) | Verfahren zur Herstellung von Olefinen. | |
ATE120742T1 (de) | Verfahren zur herstellung von e-caprolacton. | |
ATE73151T1 (de) | Verfahren zur herstellung von hochmolekularem polyester. | |
DE69923420D1 (de) | Verfahren zur Herstellung von Polyesterharzen | |
ATE121069T1 (de) | Verfahren zur herstellung von dialkylestern von polyhalogenaromatischen säuren mit hoher ausbeute. | |
DE3772847D1 (de) | Verfahren zur herstellung von 2-methyl-1,4-naphthochinon. | |
ATE121715T1 (de) | Verfahren zur herstellung von 3,3',4,4'- tetramethyldiphenylmethan. | |
ATE116959T1 (de) | Verfahren zur herstellung von polycarbonsäuren und deren derivate. | |
ATE102987T1 (de) | Bitumen-polymer-mischung und verfahren zur herstellung. | |
ATE127488T1 (de) | Polyester-mischung, ihre herstellung und verwendung. | |
ATE124954T1 (de) | Verfahren zur herstellung von tauroursodesoxycholsäure dihydrat. | |
ATE36523T1 (de) | Verfahren zur herstellung wasserunloeslicher peroxycarbonsaeuren. | |
ATE90953T1 (de) | Verfahren zur herstellung von hochmolekularen polyesterharzen. | |
ATE127470T1 (de) | Verfahren zur herstellung von phosphatidylcholinderivaten. | |
ATE233751T1 (de) | Verfahren zur herstellung und zwischenprodukt der 2-(10,11-dihydro-10-oxodibenzo(b,f)thiepin-2-yl - propionsäure | |
ATE145409T1 (de) | Verfahren zur reinigung von styrolpolymer | |
EP0353645A3 (de) | Verfahren zur Herstellung von hochreinem 5,5-[2,2,2-trifluor-1-(trifluormethyl)-ethyliden] bis-1,3-isobenzofurandion | |
ATE19238T1 (de) | Verfahren zur herstellung von sulfobernsteinsaeure-diestern. | |
ATE11287T1 (de) | Verfahren zur herstellung von phthalsaeureanhydrid. | |
ATE22560T1 (de) | Verfahren zur herstellung von tetramethyloxiran. | |
ATE90073T1 (de) | Verfahren zur herstellung von n-acyl-anilinen. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee |