CH455748A - Verfahren zur Herstellung von Methacrylsäure aus a-Oxyisobuttersäure - Google Patents
Verfahren zur Herstellung von Methacrylsäure aus a-OxyisobuttersäureInfo
- Publication number
- CH455748A CH455748A CH349565A CH349565A CH455748A CH 455748 A CH455748 A CH 455748A CH 349565 A CH349565 A CH 349565A CH 349565 A CH349565 A CH 349565A CH 455748 A CH455748 A CH 455748A
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- production
- oxyisobutyric
- methacrylic acid
- methacrylic
- 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
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/377—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/317—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
- C07C67/327—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups by elimination of functional groups containing oxygen only in singly bound form
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH349565A CH455748A (de) | 1965-03-12 | 1965-03-12 | Verfahren zur Herstellung von Methacrylsäure aus a-Oxyisobuttersäure |
| DE19661568948 DE1568948C3 (de) | 1965-03-12 | 1966-02-24 | Verfahren zur Herstellung von Methacrylsäure aus alpha-Oxyisobuttersäure |
| FR52746A FR1470913A (fr) | 1965-03-12 | 1966-03-09 | Perfectionnements apportés aux procédés de préparation de l'acide méthacrylique |
| SE03188/66A SE325872B (de) | 1965-03-12 | 1966-03-10 | |
| BE677746D BE677746A (de) | 1965-03-12 | 1966-03-11 | |
| US533441A US3666805A (en) | 1965-03-12 | 1966-03-11 | Preparation of methacrylic acid |
| NL6603200A NL6603200A (de) | 1965-03-12 | 1966-03-11 | |
| DK127266AA DK114826B (da) | 1965-03-12 | 1966-03-11 | Fremgangsmåde til fremstilling af methacrylsyre ud fra α-hydroxyisosmørsyre. |
| GB11143/66A GB1080473A (en) | 1965-03-12 | 1966-03-14 | Process for the production of methacrylic acid from ª‡-hydroxy isobutyric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH349565A CH455748A (de) | 1965-03-12 | 1965-03-12 | Verfahren zur Herstellung von Methacrylsäure aus a-Oxyisobuttersäure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH455748A true CH455748A (de) | 1968-05-15 |
Family
ID=4257216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH349565A CH455748A (de) | 1965-03-12 | 1965-03-12 | Verfahren zur Herstellung von Methacrylsäure aus a-Oxyisobuttersäure |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3666805A (de) |
| BE (1) | BE677746A (de) |
| CH (1) | CH455748A (de) |
| DK (1) | DK114826B (de) |
| FR (1) | FR1470913A (de) |
| GB (1) | GB1080473A (de) |
| NL (1) | NL6603200A (de) |
| SE (1) | SE325872B (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3142487A1 (de) * | 1981-10-27 | 1983-05-05 | Chemische Werke Hüls AG, 4370 Marl | Verfahren zur herstellung von methacrylsaeure aus isobutyraldehyd |
| US6582943B1 (en) | 2002-02-05 | 2003-06-24 | E. I. Du Pont De Nemours And Company | Method for producing 2-hydroxyisobutyric acid and methacrylic acid from acetone cyanohydrin |
| US20070219397A1 (en) * | 2006-03-15 | 2007-09-20 | Battelle Memorial Institute | Method for conversion of beta-hydroxy carbonyl compounds |
| US7687661B2 (en) * | 2006-03-15 | 2010-03-30 | Battelle Memorial Institute | Method for conversion of β-hydroxy carbonyl compounds |
| DE102006017760A1 (de) * | 2006-03-24 | 2007-09-27 | Ufz-Umweltforschungszentrum Leipzig-Halle Gmbh | Verfahren zur enzymatischen Herstellung von 2-Hydroxy-2-methylcarbonsäuren |
| DE102006055428A1 (de) * | 2006-11-22 | 2008-05-29 | Evonik Röhm Gmbh | Verfahren zur Herstellung von (Meth)acrylsäure |
| DE102006055427A1 (de) * | 2006-11-22 | 2008-05-29 | Evonik Röhm Gmbh | Verfahren zur Herstellung von Tetramethylglycolid |
| DE102008002715A1 (de) | 2008-06-27 | 2009-12-31 | Evonik Röhm Gmbh | 2-Hydroxyisobuttersäure produzierende rekombinante Zelle |
| DE102008040193A1 (de) | 2008-07-04 | 2010-01-07 | Evonik Röhm Gmbh | Verfahren zur Herstellung freier Carbonsäuren |
| DE102008040415A1 (de) | 2008-07-15 | 2010-01-21 | Evonik Röhm Gmbh | Thermisches Salzspalten von Ammoniumcarboxylaten |
| DE102009029651A1 (de) | 2009-09-22 | 2011-03-24 | Evonik Röhm Gmbh | Verfahren zur Herstellung freier Carbonsäuren |
| WO2017165397A1 (en) | 2016-03-22 | 2017-09-28 | University Of Georgia Research Foundation, Inc. | Genetically engineered microbes and methods for producing citramalate |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA628493A (en) * | 1961-10-03 | I. Tewksbury Charles | Process of producing methacrylic acid and/or esters | |
| US2393737A (en) * | 1945-02-20 | 1946-01-29 | Rohm & Haas | Preparation of unsaturated esters |
| US2469701A (en) * | 1946-02-13 | 1949-05-10 | American Cyanamid Co | Preparation of acrylic acid |
| US2811545A (en) * | 1956-07-23 | 1957-10-29 | Escambia Chem Corp | Production of alpha-hydroxy isobutyric and methacrylic acids and their esters |
| DE1195295B (de) * | 1960-04-25 | 1965-06-24 | Kalk Chemische Fabrik Gmbh | Verfahren zur Herstellung von alpha,beta-ungesaettigten Carbonsaeuren aus alpha-Oxycabonsaeuren |
| US3562320A (en) * | 1967-04-25 | 1971-02-09 | Escambia Chem Corp | Process for producing methacrylic acid |
-
1965
- 1965-03-12 CH CH349565A patent/CH455748A/de unknown
-
1966
- 1966-03-09 FR FR52746A patent/FR1470913A/fr not_active Expired
- 1966-03-10 SE SE03188/66A patent/SE325872B/xx unknown
- 1966-03-11 NL NL6603200A patent/NL6603200A/xx unknown
- 1966-03-11 DK DK127266AA patent/DK114826B/da unknown
- 1966-03-11 US US533441A patent/US3666805A/en not_active Expired - Lifetime
- 1966-03-11 BE BE677746D patent/BE677746A/xx unknown
- 1966-03-14 GB GB11143/66A patent/GB1080473A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE677746A (de) | 1966-08-01 |
| FR1470913A (fr) | 1967-02-24 |
| DE1568948B2 (de) | 1976-03-25 |
| DE1568948A1 (de) | 1970-04-16 |
| DK114826B (da) | 1969-08-11 |
| SE325872B (de) | 1970-07-13 |
| NL6603200A (de) | 1966-09-13 |
| US3666805A (en) | 1972-05-30 |
| GB1080473A (en) | 1967-08-23 |
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