| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| 1,6:2,3-二酐-β-D-吡喃甘露糖 | 1,6:2,3-dianhydro-β-D-mannopyranose | 3868-03-9 | C6H8O4 | 144.127 |
| —— | 1,6:3,4-dianhydro-β-D-galactopyranose | 16939-77-8 | C6H8O4 | 144.127 |
| 1,6-脱水-β-D-葡萄糖 | levoglucosan | 498-07-7 | C6H10O5 | 162.142 |
| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
|---|---|---|---|---|
| —— | 1,6:2,3-dianhydro-β-D-allopyranose | 26423-96-1 | C6H8O4 | 144.127 |
| —— | 4-O-Methyl-1,6:2,3-dianhydro-β-D-gulopyranose | 93334-91-9 | C7H10O4 | 158.154 |
| 苯磺酸,4-羟基-,盐(1:?:?)钙钾 | 1,6:2,3-Dianhydro-4-O-benzyl-β-D-glucopyranose | 82742-16-3 | C13H14O4 | 234.252 |
| —— | 1,6:3,4-Dianhydro-2-O-benzyl-β-D-galactopyranose | 33208-46-7 | C13H14O4 | 234.252 |
| —— | 1,6 : 2,3-dianhydro-4-deoxy-4-fluoro-β-D-gulopyranose | 1353758-96-9 | C6H7FO3 | 146.118 |
| —— | 1,6:2,3-dianhydro-5-deoxy-5-fluoro-α-L-talofuranose | 1353758-98-1 | C6H7FO3 | 146.118 |
A complete series of 2,3-dideoxy-2,3-epimino- and 3,4-dideoxy-3,4-epimino-1,6-anhydro-β-D-hexopyranoses were prepared by lithium aluminum hydride reduction of the corresponding
The corresponding acetylated and free 2-O- and 4-O-glucosyl derivatives of dianhydrohexoses Ib - VIIb and Ic - VIIc have been obtained by the reactions of 2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide (
Epoxide or pseudo-epoxide migration of 1,6:2,3-dianhydro- and 1,6:3,4-dianhydro-β-D-hexopyranoses was effected by treatment with aqueous sodium hydroxide or sodium iodide in acetone to give equilibrium mixtures. Various iodo derivatives of 1,6-anhydro-β-D-hexopyranoses were prepared as potential intermediates for pseudo-epoxide migration. NMR was used for following the reaction mechanism of epoxide and pseudo-epoxide migrations and analysis of reaction mixtures. Experimental data were compared with DFT calculations. Chair-boat equilibration of 1,6-anhydro-3-deoxy-3-halo-β-D-glucopyranoses was discussed.