CH651006A5 - Verfahren zur herstellung von 2-methylenaldehyden. - Google Patents
Verfahren zur herstellung von 2-methylenaldehyden. Download PDFInfo
- Publication number
- CH651006A5 CH651006A5 CH4246/81A CH424681A CH651006A5 CH 651006 A5 CH651006 A5 CH 651006A5 CH 4246/81 A CH4246/81 A CH 4246/81A CH 424681 A CH424681 A CH 424681A CH 651006 A5 CH651006 A5 CH 651006A5
- Authority
- CH
- Switzerland
- Prior art keywords
- reaction
- formaldehyde
- aldehydes
- methylene
- aldehyde
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
- C07C45/72—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
- C07C45/75—Reactions with formaldehyde
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (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 |
|---|---|---|---|
| DE3025350A DE3025350C2 (de) | 1980-07-04 | 1980-07-04 | Verfahren zur Herstellung von 2-Methylenaldehyden |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH651006A5 true CH651006A5 (de) | 1985-08-30 |
Family
ID=6106399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH4246/81A CH651006A5 (de) | 1980-07-04 | 1981-06-26 | Verfahren zur herstellung von 2-methylenaldehyden. |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4346239A (cg-RX-API-DMAC7.html) |
| JP (1) | JPS5745123A (cg-RX-API-DMAC7.html) |
| CH (1) | CH651006A5 (cg-RX-API-DMAC7.html) |
| DE (1) | DE3025350C2 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2486069A2 (cg-RX-API-DMAC7.html) |
| GB (1) | GB2078748B (cg-RX-API-DMAC7.html) |
| IT (1) | IT1209875B (cg-RX-API-DMAC7.html) |
| NL (1) | NL187012C (cg-RX-API-DMAC7.html) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3106557A1 (de) * | 1981-02-21 | 1982-09-16 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von (alpha)-alkylacroleinen |
| DE3213681A1 (de) * | 1982-04-14 | 1983-10-27 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von (alpha)-alkylacroleinen |
| US4739111A (en) * | 1983-05-26 | 1988-04-19 | Exxon Research & Engineering Co. | Alpha, beta-ethylenically unsaturated acids and derivatives thereof using a multicomponent acidic catalyst composition containing zirconium |
| EP0162891B1 (en) * | 1983-11-10 | 1990-05-23 | Monsanto Company | Mixture of amines and process for producing it |
| JPS6133137A (ja) * | 1984-07-24 | 1986-02-17 | Sumitomo Chem Co Ltd | チグリルアルデヒドの製造方法 |
| US4683342A (en) * | 1985-09-26 | 1987-07-28 | International Flavors & Fragrances Inc. | Process for preparing natural benzaldehyde and acetaldehyde, natural benzaldehyde and acetaldehyde compositions, products produced thereby and organoleptic utilities therefor |
| US4740639A (en) * | 1987-06-12 | 1988-04-26 | Eastman Kodak Company | Process for preparation of 2,4-disubstituted-1,5-pentanediols |
| DE3740293A1 (de) * | 1987-11-27 | 1989-06-01 | Hoechst Ag | Verfahren zur herstellung von alpha-alkylacroleinen |
| DE3811039A1 (de) * | 1988-03-31 | 1989-10-19 | Hoechst Ag | Verfahren zur gewinnung von 2-methylalkanalen aus gemischen isomerer aldehyde |
| DE3842186A1 (de) * | 1988-12-15 | 1990-06-21 | Basf Ag | Verfahren zur gewinnung von 2-alkylverzweigten alkanalen aus alkanalgemischen |
| US4945184A (en) * | 1989-06-19 | 1990-07-31 | Aristech Chemical Corporation | Preparation of unsaturated ketones |
| ES2714899T3 (es) * | 2016-09-30 | 2019-05-30 | Oxea Gmbh | Método de producción continuo para 2-metilenos-alcanales |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE875194C (de) * | 1939-08-24 | 1953-04-30 | Basf Ag | Herstellung ª‡-substituierter Acroleine |
| US2518416A (en) * | 1948-04-28 | 1950-08-08 | Rohm & Haas | Preparation of acroleins |
| US2639295A (en) * | 1948-07-16 | 1953-05-19 | Eastman Kodak Co | Manufacture of unsaturated aldehydes |
| US3463818A (en) * | 1966-01-25 | 1969-08-26 | Int Flavors & Fragrances Inc | Unsaturated aldehydes and alcohols |
| BE758908R (fr) * | 1968-09-27 | 1971-05-13 | Basf Ag | Procede de preparation de dimethyl-2, 2-hydroxy-3- |
| DE2855504C3 (de) * | 1978-12-22 | 1989-04-06 | Ruhrchemie Ag, 4200 Oberhausen | Verfahren zur Herstellung von Methacrolein |
| JPS5587739A (en) * | 1978-12-26 | 1980-07-02 | Mitsui Petrochem Ind Ltd | Preparation of aromatic aldehyde or ketone |
-
1980
- 1980-07-04 DE DE3025350A patent/DE3025350C2/de not_active Expired - Fee Related
- 1980-12-29 US US06/220,382 patent/US4346239A/en not_active Expired - Lifetime
-
1981
- 1981-06-19 NL NLAANVRAGE8102971,A patent/NL187012C/xx not_active IP Right Cessation
- 1981-06-25 FR FR8112534A patent/FR2486069A2/fr active Granted
- 1981-06-26 CH CH4246/81A patent/CH651006A5/de not_active IP Right Cessation
- 1981-07-01 JP JP56101374A patent/JPS5745123A/ja active Pending
- 1981-07-03 GB GB8120616A patent/GB2078748B/en not_active Expired
- 1981-07-03 IT IT8148830A patent/IT1209875B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| NL187012B (nl) | 1990-12-03 |
| GB2078748A (en) | 1982-01-13 |
| DE3025350C2 (de) | 1993-10-14 |
| DE3025350A1 (de) | 1982-01-28 |
| FR2486069A2 (fr) | 1982-01-08 |
| US4346239A (en) | 1982-08-24 |
| FR2486069B2 (cg-RX-API-DMAC7.html) | 1984-10-19 |
| GB2078748B (en) | 1984-07-11 |
| NL187012C (nl) | 1991-05-01 |
| NL8102971A (nl) | 1982-02-01 |
| JPS5745123A (en) | 1982-03-13 |
| IT1209875B (it) | 1989-08-30 |
| IT8148830A0 (it) | 1981-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |