GB1567447A - Process for increasing the production of recovery yields of hemiacetal-esters of glyoxylic acid - Google Patents
Process for increasing the production of recovery yields of hemiacetal-esters of glyoxylic acid Download PDFInfo
- Publication number
- GB1567447A GB1567447A GB9056/78A GB905678A GB1567447A GB 1567447 A GB1567447 A GB 1567447A GB 9056/78 A GB9056/78 A GB 9056/78A GB 905678 A GB905678 A GB 905678A GB 1567447 A GB1567447 A GB 1567447A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hemiacetal
- esters
- glyoxylic
- ester
- acid
- 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
Links
Classifications
-
- 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
- C07C67/31—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of functional groups containing oxygen only in singly bound form
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 |
|---|---|---|---|
| FR7708071A FR2383911A1 (fr) | 1977-03-17 | 1977-03-17 | 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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1567447A true GB1567447A (en) | 1980-05-14 |
Family
ID=9188234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9056/78A Expired GB1567447A (en) | 1977-03-17 | 1978-03-07 | Process for increasing the production of recovery yields of hemiacetal-esters of glyoxylic acid |
Country Status (6)
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4760168A (en) * | 1982-05-12 | 1988-07-26 | American Cyanamid Company | Preparation of alkyl acrylamidoglycolates and their alkyl ethers |
| US4443623A (en) * | 1982-05-12 | 1984-04-17 | American Cyanamid Company | Preparation of predominately methyl acrylamidoglycolate methyl ether in a normally liquid product |
| DE3224795A1 (de) * | 1982-07-02 | 1984-01-05 | Lentia GmbH Chem. u. pharm. Erzeugnisse - Industriebedarf, 8000 München | Verfahren zur herstellung von glyoxylsaeure und glyoxylsaeurederivaten |
| US4419258A (en) * | 1982-09-30 | 1983-12-06 | Monsanto Company | Dialkyl glyoxylate surfactants |
| DE3446528A1 (de) * | 1984-12-20 | 1986-06-26 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von glyoxylsaeurehemiacetalestern |
| 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 |
| JP3150909B2 (ja) * | 1996-09-05 | 2001-03-26 | 株式会社日本触媒 | グリオキシル酸エステル類の精製方法 |
| JP4891591B2 (ja) * | 2005-10-25 | 2012-03-07 | 東ソ−・エフテック株式会社 | トリフルオロアセトアルデヒドヘミアセタールの回収方法 |
| JP4856453B2 (ja) * | 2006-03-14 | 2012-01-18 | 河村電器産業株式会社 | 電気機器収納用箱体 |
| JP2008163574A (ja) * | 2006-12-27 | 2008-07-17 | Kawamura Electric Inc | 機器収納用箱体の蝶番構造 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3911003A (en) * | 1974-06-19 | 1975-10-07 | Chevron Res | Process for the production of glycolic acid and oxydiacetic acid |
-
1977
- 1977-03-17 FR FR7708071A patent/FR2383911A1/fr active Granted
-
1978
- 1978-03-02 CH CH227678A patent/CH631151A5/fr not_active IP Right Cessation
- 1978-03-07 GB GB9056/78A patent/GB1567447A/en not_active Expired
- 1978-03-13 US US05/886,225 patent/US4156093A/en not_active Expired - Lifetime
- 1978-03-15 JP JP53030514A patent/JPS6021575B2/ja not_active Expired
- 1978-03-16 DE DE19782811480 patent/DE2811480A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53116319A (en) | 1978-10-11 |
| JPS6021575B2 (ja) | 1985-05-28 |
| DE2811480C2 (US07709020-20100504-C00041.png) | 1987-02-26 |
| FR2383911B1 (US07709020-20100504-C00041.png) | 1980-04-04 |
| FR2383911A1 (fr) | 1978-10-13 |
| CH631151A5 (fr) | 1982-07-30 |
| DE2811480A1 (de) | 1978-09-21 |
| US4156093A (en) | 1979-05-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940307 |