1-叠氮-1-脱氧-β-D-半乳糖苷是一种半乳糖衍生物,可通过从叠氮全乙酰化半乳糖中脱去乙酰基得到。这种化合物可用于制备含有同类糖单元的含糖树枝化聚合物。
制备准确称取叠氮全乙酰化半乳糖(0.7466g,2mmol),加入100mL甲醇圆底烧瓶中,在氮气保护下,逐滴加入CH3ONa(432.1mg,8mmol)。室温搅拌2小时后,通过薄层色谱(TLC)检测反应完全。调节体系pH至7,使用离子交换树脂处理,过滤并减压浓缩,最终得到黄色液体化合物1-叠氮-1-脱氧-β-D-半乳糖苷。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1-叠氮-1-脱氧-β-D-吡喃半乳糖苷四乙酸酯 | (2R,3S,4S,5R,6R)-2-(acetoxymethyl)-6-azidotetrahydro-2H-pyran-3,4,5-triyl triacetate | 13992-26-2 | C14H19N3O9 | 373.32 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | β-D-talopyranosyl azide | —— | C6H11N3O5 | 205.17 |
—— | 1-deoxy-1-azido-β-D-galactohexopranosiduronic acid | 362599-18-6 | C6H9N3O6 | 219.154 |
—— | 1-amino-1-deoxy-β-D-galactose | 6318-23-6 | C6H13NO5 | 179.173 |
1-叠氮-1-脱氧-β-D-吡喃半乳糖苷四乙酸酯 | (2R,3S,4S,5R,6R)-2-(acetoxymethyl)-6-azidotetrahydro-2H-pyran-3,4,5-triyl triacetate | 13992-26-2 | C14H19N3O9 | 373.32 |
—— | 2,3,4,6-tetra-O-propionyl-β-D-galactopyranosyl azide | 1417909-34-2 | C18H27N3O9 | 429.427 |
—— | 2,3,4,6-tetra-O-butanoyl-β-D-glalactopyranosyl azide | 1417909-35-3 | C22H35N3O9 | 485.535 |
—— | 2,3,4,6-tetra-O-pentanoyl-β-D-galactopyranosyl azide | 1417909-36-4 | C26H43N3O9 | 541.642 |
—— | 2,3,4,6-tetra-O-(3-methylbutanoyl)-β-D-galactopyranosyl azide | 1417909-37-5 | C26H43N3O9 | 541.642 |
—— | 2,3,6-tri-O-benzyl-β-D-galactopyranosyl azide | 204510-90-7 | C27H29N3O5 | 475.544 |
—— | 2,3,4,6-tetra-O-benzyl-D-galactopyranosyl azide | 200501-41-3 | C34H35N3O5 | 565.669 |
—— | 4,6-O-benzylidene-β-D-galactopyranosyl azide | 204510-86-1 | C13H15N3O5 | 293.279 |
—— | [(2R,3S,4S,5R,6R)-6-azido-3-hydroxy-4,5-bis(phenylmethoxy)oxan-2-yl]methyl benzoate | 566199-65-3 | C27H27N3O6 | 489.528 |
—— | (2S,4aR,6R,7R,8S,8aS)-6-Azido-7,8-bis-benzyloxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxine | 204510-88-3 | C27H27N3O5 | 473.528 |
—— | [(2R,3R,4S,5S,6R)-2-azido-3-benzoyloxy-5-hydroxy-6-(phenylmethoxymethyl)oxan-4-yl] benzoate | 566199-64-2 | C27H25N3O7 | 503.511 |
—— | [(2R,3S,4S,5R,6R)-6-azido-4,5-dibenzoyloxy-3-hydroxyoxan-2-yl]methyl benzoate | 73108-20-0 | C27H23N3O8 | 517.495 |
—— | Acetic acid (2R,3S,4S,5S,6R)-3,5-diacetoxy-2-acetoxymethyl-6-amino-tetrahydro-pyran-4-yl ester | —— | C14H21NO9 | 347.322 |
—— | Bn(-3)[Bn(-4)][Bn(-6)]Gal(a1-4)[Bn(-2)][Bn(-3)][Bn(-6)]Gal(b)-N3 | 566199-62-0 | C54H57N3O10 | 908.061 |
—— | Bn(-3)[Bn(-4)][Bn(-6)]Gal2Me(a1-4)[Bn(-2)][Bn(-3)][Bn(-6)]Gal(b)-N3 | 566199-71-1 | C55H59N3O10 | 922.088 |
—— | endo-4-O-Cyclohexylcarbamoyl-2,3-O-(2,2,2-trichloroethylidene)-β-D-gulopyranosyl azide | 271588-02-4 | C15H21Cl3N4O6 | 459.714 |
—— | endo-4-O-Cyclohexylcarbamoyl-6-O-formyl-2,3-O-(2,2,2-trichloroethylidene)-β-D-gulopyranosyl azide | 271588-03-5 | C16H21Cl3N4O7 | 487.724 |
—— | Mob(-2)[Bn(-3)][Bn(-4)][Bn(-6)]Gal(a1-4)[Bn(-2)][Bn(-3)][Bn(-6)]Gal(b)-N3 | 566199-70-0 | C62H65N3O11 | 1028.21 |
Amphiphilic compounds are used in a variety of applications due to their lyotropic liquid-crystalline phase formation, however only a limited number of compounds, in a potentially limitless field, are currently in use. A library of organic amphiphilic compounds was synthesised consisting of glucose, galactose, lactose, xylose and mannose head groups and double and triple-chain hydrophobic tails. A modular, high-throughput approach was developed, whereby head and tail components were conjugated using the copper-catalysed azide–alkyne cycloaddition (CuAAC) reaction. The tails were synthesised from two core alkyne-tethered intermediates, which were subsequently functionalised with hydrocarbon chains varying in length and degree of unsaturation and branching, while the five sugar head groups were selected with ranging substitution patterns and anomeric linkages. A library of 80 amphiphiles was subsequently produced, using a 24-vial array, with the majority formed in very good to excellent yields. A preliminary assessment of the liquid-crystalline phase behaviour is also presented.