GB915578A - Process for the production of esters of sugars, hexitols and anhydro-sugars - Google Patents
Process for the production of esters of sugars, hexitols and anhydro-sugarsInfo
- Publication number
- GB915578A GB915578A GB1756858A GB1756858A GB915578A GB 915578 A GB915578 A GB 915578A GB 1756858 A GB1756858 A GB 1756858A GB 1756858 A GB1756858 A GB 1756858A GB 915578 A GB915578 A GB 915578A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- sugar
- fatty acid
- evaporator
- hexitol
- 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
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H13/00—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids
- C07H13/02—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids
- C07H13/04—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids having the esterifying carboxyl radicals attached to acyclic carbon atoms
- C07H13/06—Fatty acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Saccharide Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
A fatty acid ester or partial ester, or a mixed ester, of a sugar, hexitol or anhydrosugar is made by subjecting a fatty acid ester in which the acid radical contains from 12 to 30 carbon atoms and the alcohol residue contains from 1 to 3 carbon atoms, or a mixture of such esters, to alcoholysis with the sugar, hexitol or anhydro-sugar, in the presence of an alcoholysis catalyst in a liquid reaction medium inert under the reaction conditions and of such a kind and present in such quantity that the catalyst, and the sugar, hexitol or anhydro-sugar, are soluble, but the fatty acid ester or mixture of fatty acid esters is substantially insoluble, and intimately contacting the phases of the reaction mixture, in a thin film, under conditions such that there is rapid evaporation of the alcohol liberated in the reaction. The preferred solvents are dialkyl sulphoxides having not more than 3 carbon atoms in the alkyl groups, e.g. dimethyl sulphoxide. Sucrose, sorbitol, mannitol, dulcitol and sorbitan are suitable starting materials. The intimate contacting may be effected by maintaining vigorous turbulence of the solid and liquid phases during the reaction. The reaction may be effected in a thin-film type evaporator, such as a cyclone evaporator, a rotary film evaporator, or a calandria type of heater in which the reaction mixture is thrown across the surface of the upper part of the flask as a thin film of the mixed phases. Mixing pumps, turbo dispersers or other mixing devices may also be used in combination with means which provide a thin film of the temporarily mixed phases. Examples describe the reaction of sucrose with methyl stearate or palmitate in dimethyl sulphoxide in the presence of potassium carbonate, the reaction being carried out in a cycle evaporator fitted with a column and take-off head.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1756858A GB915578A (en) | 1958-06-02 | 1958-06-02 | Process for the production of esters of sugars, hexitols and anhydro-sugars |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1756858A GB915578A (en) | 1958-06-02 | 1958-06-02 | Process for the production of esters of sugars, hexitols and anhydro-sugars |
Publications (1)
Publication Number | Publication Date |
---|---|
GB915578A true GB915578A (en) | 1963-01-16 |
Family
ID=10097469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1756858A Expired GB915578A (en) | 1958-06-02 | 1958-06-02 | Process for the production of esters of sugars, hexitols and anhydro-sugars |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB915578A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102093438A (en) * | 2010-11-22 | 2011-06-15 | 柳州爱格富食品科技股份有限公司 | Process for synthesizing sucrose polyester by using rotating film transesterification flow reactor |
-
1958
- 1958-06-02 GB GB1756858A patent/GB915578A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102093438A (en) * | 2010-11-22 | 2011-06-15 | 柳州爱格富食品科技股份有限公司 | Process for synthesizing sucrose polyester by using rotating film transesterification flow reactor |
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