2,3,4,6-四-O-苯甲基-β-D-异丙基吡喃葡萄糖苷合成路线 (共 39 条)
反应条件
4 A molecular sieve; lithium perchlorate; cesium fluoride in dichloromethane T=25°C; 24 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
参考文献
Liebigs Annalen, , # 4 p. 613 - 620
反应条件
4 A molecular sieve; lithium perchlorate in chloroform T=25°C; 24 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
参考文献
Liebigs Annalen, , # 4 p. 613 - 620
反应条件
4 A molecular sieve; lithium perchlorate in dichloromethane T=25°C; 24 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
参考文献
Liebigs Annalen, , # 4 p. 613 - 620
反应条件
1: 87 percent / Aliquat 336 / CH2Cl2 / 2.5 h / Ambient temperature 2: CuO, (CuOTf)2, mol sieves 4A, Et3N / diethyl ether / 0.08 h / Ambient temperature View Scheme
参考文献
Tetrahedron Letters, , vol. 39, # 44 p. 8097 - 8100
反应条件
4 A molecular sieve; lithium perchlorate in diethyl ether T=25°C; 24 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
参考文献
Liebigs Annalen, , # 4 p. 613 - 620
反应条件
1: anhydrous triisopropyl orthoformate; D-glucose With hydrogenchloride in 1,4-dioxane; isopropyl alcohol 3 h; Heating; 2: With sodium hydride in N,N-dimethyl-formamide T=0°C; 1 h; 3: benzyl bromide With tetra-(n-butyl)ammonium iodide in N,N-dimethyl-formamide T=20°C; 24 h; Title compound not separated from byproducts;
参考文献
Monatshefte fur Chemie, , vol. 137, # 3 p. 365 - 374
反应条件
1: 12 percent / phenol / tetrahydrofuran / 5 h / Irradiation 2: 82 percent / AcOH / toluene / 1.5 h / Heating 3: 81 percent / 1,8-diazabicyclo<5.4.0>undec-7-ene (DBU), N-bromosuccinimide (NBS) / dimethylformamide / 0.75 h / Ambient temperature 4: NaH / tetrahydrofuran / 3.5 h / Ambient temperature; Irradiation View Scheme
参考文献
Helvetica Chimica Acta, , vol. 74, # 8 p. 2100 - 2111
反应条件
trimethylsilyl trifluoromethanesulfonate in dichloromethane T=-78°C; 1 h; Inert atmosphereMolecular sieve; optical yield given as percent dediastereoselective reaction;
参考文献
Angewandte Chemie - International Edition, , vol. 49, # 46 p. 8724 - 8728
反应条件
1: NaH / dimethylformamide 2: TMSOTf, molecular sieves 4A / diethyl ether / 0.5 h / -35 °C View Scheme
参考文献
Tetrahedron Letters, , vol. 28, # 40 p. 4701 - 4704
反应条件
1: NaH / dimethylformamide 2: TMSOTf, molecular sieves 4A / diethyl ether / 0.5 h / -35 °C View Scheme
参考文献
Tetrahedron Letters, , vol. 28, # 40 p. 4701 - 4704