GB681202A - The production of 2:2:4-trimethyl-3-ol-1-pentanoic acid - Google Patents
The production of 2:2:4-trimethyl-3-ol-1-pentanoic acidInfo
- Publication number
- GB681202A GB681202A GB143050A GB143050A GB681202A GB 681202 A GB681202 A GB 681202A GB 143050 A GB143050 A GB 143050A GB 143050 A GB143050 A GB 143050A GB 681202 A GB681202 A GB 681202A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- oxidation
- oxygen
- acetate
- trimethyl
- 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
- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/18—Polyhydroxylic acyclic alcohols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/18—Polyhydroxylic acyclic alcohols
- C07C31/20—Dihydroxylic alcohols
-
- 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
- C07C51/31—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting
- C07C51/313—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting with molecular oxygen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
2 : 2 : 4 - Trimethyl - 3 - ol - 1 - pentanoic acid is produced by the oxidation of 5 : 5-dimethyl-2 : 4 - di - isopropyl - 6 - hydroxy - 1 : 3 - dioxane (isobutyraldoxan) in the liquid phase under slightly acidic conditions by intimate contact with a gas containing molecular oxygen in the presence of an oxidation catalyst. Preferably, the oxidation is carried out in the presence of a diluent which may be neutral, e.g. isobutanol, other alcohols or ketones, or a weak organic acid, e.g. acetic, propionic, butyric or isobutyric acid. If no solvent or a neutral solvent is used, it is necessary to add some acid to produce the required acid conditions. The temperature should not exceed 60 DEG C. and is preferably in the range 30-45 DEG C. Satisfactory catalysts are vanadium pentoxide, vanadic acid compounds of cobalt, copper, uranium and tungsten, manganous acetate in conjunction with cobalt acetate or copper acetate or manganic acetate alone or in conjunction with other catalysts mentioned above. Air, or preferably oxygen, may be used as the oxygen-containing gas. The reaction products may be recovered from the oxidation mixture by steam distillation or straight distillation. Preferably, the lower boiling products, chiefly isobutyric acid, are removed by steam distillation and the aqueous residue is extracted with a solvent fror the hydroxy acid which can be purified by vacuum distillation or crystallization. In the examples, isobutyraldoxan, obtained by alkali-catalysed condensation of isobutyraldehyde is treated with oxygen in the presence of various oxidation catalysts to give 2 : 2 : 4-trimethyl-3-ol-1-pentanoic acid.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB143050A GB681202A (en) | 1950-01-19 | 1950-01-19 | The production of 2:2:4-trimethyl-3-ol-1-pentanoic acid |
| DEB13337A DE939869C (en) | 1950-01-19 | 1951-01-13 | Process for the preparation of 2, 2, 4-trimethylpentane-1, 3-diol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB143050A GB681202A (en) | 1950-01-19 | 1950-01-19 | The production of 2:2:4-trimethyl-3-ol-1-pentanoic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB681202A true GB681202A (en) | 1952-10-22 |
Family
ID=9721899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB143050A Expired GB681202A (en) | 1950-01-19 | 1950-01-19 | The production of 2:2:4-trimethyl-3-ol-1-pentanoic acid |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE939869C (en) |
| GB (1) | GB681202A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3403696C2 (en) * | 1984-02-03 | 1987-04-02 | Ruhrchemie Ag, 4200 Oberhausen | Process for the simultaneous preparation of 2,2,4-trimethyl-1,3-pentanediol and its monoisobutyrate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE548814C (en) * | 1930-01-08 | 1932-04-20 | I G Farbenindustrie Akt Ges | Process for the production of 1íñ3-butylene glycol |
| US2334761A (en) * | 1939-10-28 | 1943-11-23 | Du Pont | Preparation of straight chain hydroxy compounds having at least six carbon atoms |
-
1950
- 1950-01-19 GB GB143050A patent/GB681202A/en not_active Expired
-
1951
- 1951-01-13 DE DEB13337A patent/DE939869C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE939869C (en) | 1956-03-08 |
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