GB600870A - Improvements relating to the manufacture of the 1:4-3:6-dianhydrides of mannitol andsorbitol - Google Patents
Improvements relating to the manufacture of the 1:4-3:6-dianhydrides of mannitol andsorbitolInfo
- Publication number
- GB600870A GB600870A GB2720845A GB2720845A GB600870A GB 600870 A GB600870 A GB 600870A GB 2720845 A GB2720845 A GB 2720845A GB 2720845 A GB2720845 A GB 2720845A GB 600870 A GB600870 A GB 600870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- give
- dianhydrides
- mannitol
- sorbitol
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1 : 4 - 3 : 6 - Dianhydrides of mannitol and sorbitol are made by hydrogenating sucrose or invert sugar in an atmosphere of hydrogen at 75-100 atmos. and 110-120 DEG C. with a Raney nickel catalyst in the presence of sodium and calcium carbonates to give a mixture of mannitol and sorbitol, and treating the mixture with an acid. The mixture of dianhydrides may be fractionally distilled, and the fractions recrystallized to obtain the separate pure products. Alternatively, mannitol may be separated from the mixture with sorbitol and only the latter converted to the dianhydride. Suitable acids are hydrochloric, sulphuric, phosphoric, and benzene or p-toluene sulphonic. In examples: (1) sucrose is added to boiling 0.1 N-sulphuric acid, barium hydroxide added, the filtrate hydrogenated, the product filtered and evaporated to give the hexitols which are refluxed with concentrated hydrochloric acid, the solution evaporated, and the residue distilled under reduced pressure to give the dianhydrides which are then separated; (2) the mixture of hexitols of (1) is heated with concentrated sulphuric acid and xylene so that water is azeotropically removed, and product worked up to recover the anhydrides; (3) xylene and p-toluene sulphonic acid are used similarly to give the anhydrides which are recovered; (4) the mixture of hexitols of (1) is dissolved in aqueous alcohol, manitol removed by crystallization, and the mother liquors treated as in (2) to give dianhydro sorbitol.
Publications (1)
Publication Number | Publication Date |
---|---|
GB600870A true GB600870A (en) | 1948-04-21 |
Family
ID=1740457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2720845A Expired GB600870A (en) | 1945-10-17 | Improvements relating to the manufacture of the 1:4-3:6-dianhydrides of mannitol andsorbitol |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB600870A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE960352C (en) * | 1952-07-16 | 1957-03-21 | Atlas Powder Co | Process for the production of a sorbitol-mannitol mixture |
US3454603A (en) * | 1966-05-18 | 1969-07-08 | Atlas Chem Ind | Method of preparing 1,4-3,6-dianhydroiditol and 1,4-3,6-dianhydroglucitol |
FR2642073A1 (en) * | 1989-01-26 | 1990-07-27 | Inst Francais Du Petrole | PROCESS FOR PRODUCING ANHYDROSORBITOLS AND ANHYDROMANNITOLS FROM SORBITOL AND MANNITOL |
WO2002036598A1 (en) * | 2000-11-01 | 2002-05-10 | Archer-Daniels-Midland Company | Process for the production of anhydrosugar alcohols |
US7420067B2 (en) | 2006-03-09 | 2008-09-02 | Archer-Daniels-Midland Company | Process for the production of anhydrosugar alcohols |
US7439352B2 (en) | 2000-11-01 | 2008-10-21 | Archer-Daniels-Midland Company | Process for the production of anhydrosugar alcohols |
-
1945
- 1945-10-17 GB GB2720845A patent/GB600870A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE960352C (en) * | 1952-07-16 | 1957-03-21 | Atlas Powder Co | Process for the production of a sorbitol-mannitol mixture |
US3454603A (en) * | 1966-05-18 | 1969-07-08 | Atlas Chem Ind | Method of preparing 1,4-3,6-dianhydroiditol and 1,4-3,6-dianhydroglucitol |
FR2642073A1 (en) * | 1989-01-26 | 1990-07-27 | Inst Francais Du Petrole | PROCESS FOR PRODUCING ANHYDROSORBITOLS AND ANHYDROMANNITOLS FROM SORBITOL AND MANNITOL |
EP0380402A1 (en) * | 1989-01-26 | 1990-08-01 | Institut Français du Pétrole | Process for the production of anhydrosorbitols and anhydromannitols from sorbitol and mannitol |
WO2002036598A1 (en) * | 2000-11-01 | 2002-05-10 | Archer-Daniels-Midland Company | Process for the production of anhydrosugar alcohols |
US6849748B2 (en) | 2000-11-01 | 2005-02-01 | Archer-Daniels-Midland Company | Process for the production of anhydrosugar alcohols |
US7439352B2 (en) | 2000-11-01 | 2008-10-21 | Archer-Daniels-Midland Company | Process for the production of anhydrosugar alcohols |
US7420067B2 (en) | 2006-03-09 | 2008-09-02 | Archer-Daniels-Midland Company | Process for the production of anhydrosugar alcohols |
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