GB518197A - The manufacture of aralkyl ethers of polysaccharoses - Google Patents
The manufacture of aralkyl ethers of polysaccharosesInfo
- Publication number
- GB518197A GB518197A GB24383/38A GB2438338A GB518197A GB 518197 A GB518197 A GB 518197A GB 24383/38 A GB24383/38 A GB 24383/38A GB 2438338 A GB2438338 A GB 2438338A GB 518197 A GB518197 A GB 518197A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethers
- cellulose
- polysaccharoses
- dibenzyl ether
- cobalt
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/16—Aryl or aralkyl ethers
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
518,197. Cellulose ethers ; ethers of polysaccharoses. I.G. FARBENINDUSTRIE AKT.-GES. Aug. 18, 1938, No. 24383. Convention date, Aug. 18, 1937. [Classes 2 (ii) and 2 (ill)] Aralkyl ethers of polpsaccharoses are prepared by reacting an aralkyl halide with an alkali polysaccharose in the presence of a cobalt compound or pentavalent arsenic compound. The etherification reaction may be carried out in the presence of diluents such as benzene, toluene or dibenzyl ether. In the examples : (1) alkali cellulose is kneaded with a solution of arsenic acid in sodium hydroxide and the mixture is etherified with benzylchloride' in presence of dibenzyl ether; (2) cellulose is kneaded with a solution of cobalt nitrate or cobalt chloride in sodium hydroxide and the mixture is etherified with benzyl chloride in presence of dibenzyl ether.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE518197X | 1937-08-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB518197A true GB518197A (en) | 1940-02-20 |
Family
ID=6549893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24383/38A Expired GB518197A (en) | 1937-08-18 | 1938-08-18 | The manufacture of aralkyl ethers of polysaccharoses |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB518197A (en) |
-
1938
- 1938-08-18 GB GB24383/38A patent/GB518197A/en not_active Expired
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