BR8506394A - Processo para a preparacao de hemiacetalesteres de acido glioxilico - Google Patents
Processo para a preparacao de hemiacetalesteres de acido glioxilicoInfo
- Publication number
- BR8506394A BR8506394A BR8506394A BR8506394A BR8506394A BR 8506394 A BR8506394 A BR 8506394A BR 8506394 A BR8506394 A BR 8506394A BR 8506394 A BR8506394 A BR 8506394A BR 8506394 A BR8506394 A BR 8506394A
- Authority
- BR
- Brazil
- Prior art keywords
- alcohol
- glyoxylic
- esters
- preparation
- entraining agent
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
- C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
- C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids
- C07C69/708—Ethers
Landscapes
- Chemical & Material Sciences (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 |
|---|---|---|---|
| DE3446528A DE3446528A1 (de) | 1984-12-20 | 1984-12-20 | Verfahren zur herstellung von glyoxylsaeurehemiacetalestern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8506394A true BR8506394A (pt) | 1986-09-02 |
Family
ID=6253333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8506394A BR8506394A (pt) | 1984-12-20 | 1985-12-19 | Processo para a preparacao de hemiacetalesteres de acido glioxilico |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4692547A (pt) |
| EP (1) | EP0186816B1 (pt) |
| JP (1) | JPS61151154A (pt) |
| CN (1) | CN85108886A (pt) |
| AT (1) | ATE35674T1 (pt) |
| BR (1) | BR8506394A (pt) |
| DE (2) | DE3446528A1 (pt) |
| ZA (1) | ZA859675B (pt) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3602274A1 (de) * | 1986-01-25 | 1987-07-30 | Hoechst Ag | Halbacetale von glyoxylsaeureestern sowie verfahren zur isolierung von glyoxylsaeureestern |
| US4820385A (en) * | 1988-02-18 | 1989-04-11 | Monsanto Company | Purification of alkyl glyoxylate in a continuous column by azeotropic distillation |
| US4867849A (en) * | 1988-07-25 | 1989-09-19 | Cova Dario R | Purification of alkyl glyoxylate |
| HU203678B (en) * | 1988-09-26 | 1991-09-30 | Richter Gedeon Vegyeszet | Method for increased dewatering condensation reaction mixtures |
| AT396589B (de) * | 1990-06-05 | 1993-10-25 | Chemie Linz Gmbh | Verfahren zur herstellung von allantoin |
| US5217582A (en) * | 1990-06-20 | 1993-06-08 | E. I. Du Pont De Nemours And Company | Process for the isolation of alkyl glyoxylate |
| DE4020536A1 (de) * | 1990-06-28 | 1992-01-02 | Chemie Linz Deutschland | Verfahren zur herstellung von allantoin |
| ES2081405T3 (es) * | 1990-09-11 | 1996-03-01 | Stefan Brinkhaus | Procedimiento y dispositivo para la minimizacion de perturbaciones, especialmente en la recepcion de fm. |
| US5523459A (en) * | 1994-03-25 | 1996-06-04 | Ube Industries, Ltd. | Preparation of α-keto acid ester |
| GB9812083D0 (en) * | 1998-06-05 | 1998-08-05 | Ici Plc | Removal of water |
| US8426632B2 (en) * | 2007-08-31 | 2013-04-23 | The Nippon Synthetic Chemical Industry Co., Ltd. | Crosslinking agent, crosslinked polymer, and uses thereof |
| CN111875497B (zh) * | 2020-08-17 | 2022-11-08 | 万华化学集团股份有限公司 | 一种马来酸二乙酯催化加氢合成乙醛酸乙酯的方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2383911A1 (fr) * | 1977-03-17 | 1978-10-13 | Hoechst France | Procede permettant d'augmenter les rendements en hemiacetal-esters de l'acide glyoxylique au cours de leur obtention ou leurs taux de recuperation dans les milieux les contenant |
-
1984
- 1984-12-20 DE DE3446528A patent/DE3446528A1/de not_active Withdrawn
-
1985
- 1985-12-09 EP EP85115645A patent/EP0186816B1/de not_active Expired
- 1985-12-09 AT AT85115645T patent/ATE35674T1/de active
- 1985-12-09 DE DE8585115645T patent/DE3563738D1/de not_active Expired
- 1985-12-18 US US06/810,519 patent/US4692547A/en not_active Expired - Fee Related
- 1985-12-19 BR BR8506394A patent/BR8506394A/pt unknown
- 1985-12-19 CN CN198585108886A patent/CN85108886A/zh active Pending
- 1985-12-19 ZA ZA859675A patent/ZA859675B/xx unknown
- 1985-12-19 JP JP60284499A patent/JPS61151154A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61151154A (ja) | 1986-07-09 |
| US4692547A (en) | 1987-09-08 |
| EP0186816B1 (de) | 1988-07-13 |
| ZA859675B (en) | 1986-08-27 |
| DE3446528A1 (de) | 1986-06-26 |
| DE3563738D1 (en) | 1988-08-18 |
| ATE35674T1 (de) | 1988-07-15 |
| EP0186816A3 (en) | 1987-02-04 |
| CN85108886A (zh) | 1986-06-10 |
| EP0186816A2 (de) | 1986-07-09 |
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