FR2016663A1 - Catal prep of lactones from saturated diphotic - carboxylic acids - Google Patents
Catal prep of lactones from saturated diphotic - carboxylic acidsInfo
- Publication number
- FR2016663A1 FR2016663A1 FR6929470A FR6929470A FR2016663A1 FR 2016663 A1 FR2016663 A1 FR 2016663A1 FR 6929470 A FR6929470 A FR 6929470A FR 6929470 A FR6929470 A FR 6929470A FR 2016663 A1 FR2016663 A1 FR 2016663A1
- Authority
- FR
- France
- Prior art keywords
- beta
- acid
- hydroxy
- carboxylic acids
- saturated
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D315/00—Heterocyclic compounds containing rings having one oxygen atom as the only ring hetero atom according to more than one of groups C07D303/00 - C07D313/00
-
- 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
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)
- Catalysts (AREA)
Abstract
Saturated aliphatic carboxylic acids are substituted by X, where X is halogen, hydroxy or hydroxy esterified with mineral acid, by elimination of HX, catalysed by non-basic salts of metals with inorganic acids. More specifically, the starting acid is a derivation of a trialkylacetic acid, and especially with X as a beta-constituent, and particularly beta-hydroxy-, beta-bromo-, or beta-chloropivalic acid. Preferably the catalyst is a halide of Li, Na, Ca, Mn, Ni or Co, more particularly LiCl and/or CoCl2 or a Lewis acid such as ZnCl2; on a porous or granular silica or alumina support. For reaction in the gaseous phase, diluent vapours of toluene or nitrobenzene can be used; and in the liquid phase, a high-boiling solvent such as sulpholane. Operating temperatures are preferably between 200 and 400 degrees C, pressures between 20 and 50 mm Hg.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4152068A GB1189400A (en) | 1968-08-30 | 1968-08-30 | A process for the preparation of Unsaturated Aliphatic Carboxylic Acids and Lactones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2016663A1 true FR2016663A1 (en) | 1970-05-08 |
Family
ID=10420067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6929470A Withdrawn FR2016663A1 (en) | 1968-08-30 | 1969-08-28 | Catal prep of lactones from saturated diphotic - carboxylic acids |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE738113A (en) |
| DE (1) | DE1943784A1 (en) |
| FR (1) | FR2016663A1 (en) |
| GB (1) | GB1189400A (en) |
| NL (1) | NL6913155A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4935376A (en) * | 1972-08-01 | 1974-04-01 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111470971B (en) * | 2020-05-09 | 2023-06-16 | 浙江大学衢州研究院 | Method for preventing catalyst ZnCl2 from caking in diisopropylethylamine production |
-
1968
- 1968-08-30 GB GB4152068A patent/GB1189400A/en not_active Expired
-
1969
- 1969-08-28 DE DE19691943784 patent/DE1943784A1/en active Pending
- 1969-08-28 BE BE738113D patent/BE738113A/xx unknown
- 1969-08-28 NL NL6913155A patent/NL6913155A/xx unknown
- 1969-08-28 FR FR6929470A patent/FR2016663A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4935376A (en) * | 1972-08-01 | 1974-04-01 | ||
| JPS5716106B2 (en) * | 1972-08-01 | 1982-04-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| BE738113A (en) | 1970-03-02 |
| NL6913155A (en) | 1970-03-03 |
| DE1943784A1 (en) | 1970-03-05 |
| GB1189400A (en) | 1970-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1018179A (en) | P-v-fe catalyst modified with chromium for production of maleic anhydride from saturated aliphatic hydrocarbons | |
| GB1362659A (en) | Oxidative dehydrogenation of organic compounds | |
| ES424611A1 (en) | Catalyst and process for making same | |
| CH609321A5 (en) | Process for the preparation of carboxylic acid anhydrides | |
| FR2016663A1 (en) | Catal prep of lactones from saturated diphotic - carboxylic acids | |
| KR840003600A (en) | Preparation of Asymmetric Aliphatic Ketones | |
| YU221572A (en) | Process for preparing catalysts for the purification of gases from carbon monoxide, hydrocarbons and nitrogen oxides | |
| GB1398530A (en) | Production of carboxylic acids and anhydrides | |
| GB1025432A (en) | Process for producing isoprene | |
| ES399936A1 (en) | Process for the preparation of benzylacetate | |
| GB1445116A (en) | Process for the preparation of aromatic carboxylic acids | |
| GB1132020A (en) | Production of unsaturated aliphatic acids | |
| GB1351562A (en) | Hydroreforming catalysts and a method for preparing the same | |
| ES403431A1 (en) | Process for the preparation of pivalolactone | |
| ES432548A1 (en) | Desulphurization process | |
| GB1101726A (en) | Process for the manufacture of vinyl acetate | |
| US3130244A (en) | Hydrocarbon conversion process and catalyst therefor | |
| FR2090788A5 (en) | Vanadium pentoxide oxidation catalysts - for phthalic -or maleic anhydride prodn | |
| ES328903A1 (en) | Catalytic oxidation method of O-xylene. (Machine-translation by Google Translate, not legally binding) | |
| GB1074316A (en) | Production or phthalic anhydride | |
| GB1051947A (en) | ||
| GB948192A (en) | Process for catalytic treatment of sour hydrocarbon distillates | |
| GB820125A (en) | Process for the manufacture of benzonitrile | |
| ES290604A1 (en) | Apparatus for generating vapor from low heat content gas | |
| GB1040308A (en) | Manufacture of 1-cyano-1, 3-butadiene |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |