Sucrose derivatives
US4156776A · kind A · utility
6Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1977 |
| Grant date | May 29, 1979 |
| Priority date | — |
| Expiry date | May 25, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07H13/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel cyclic acetal derivative of sucrose, 4,6-O-isopropylidenesucrose, is prepared by treating sucrose with 2,2-dimethoxypropane in N,N-dimethylformamide, in the presence of p-toluenesulphonic acid, suitably at room temperature. The product is conveniently isolated in the form of its hexa-acetate or hexabenzoate, by treatment with acetic anhydride or benzoyl chloride, respectively, in pyridine. The resulting compounds are valuable as synthetic intermediates and in conformational investigations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.