2,3,4,6-四-o-乙酰基-alpha-d-吡喃葡萄糖苷甲酯合成路线 (共 100 条)
反应条件
3 A molecular sieve in acetonitrile electrochemical synthesis: one compartment, three-electrode, air-tight cell, vitrous carbon anode and Pt catode, 0.2 M LiBF4 as supporting electrolyte, constant potential 1.45 V (vs standard calomel reference electrode); Yields of byproduct given;
参考文献
Balovoine, Gilbert; Berteina, Sabine; Gref, Aurore; Fischer, Jean-Claude; Lubineau, Andre
Journal of Carbohydrate Chemistry, 1995 , vol. 14, # 8 p. 1217 - 1236
反应条件
1: (4-Hydroxymethyl-2-nitro-phenoxy)-acetic acid (2R,3R,4S,5R,6S)-4,5-diacetoxy-3-(9H-fluoren-9-ylmethoxycarbonyloxy)-6-methoxy-tetrahydro-pyran-2-ylmethyl ester With Cl3CC(=NH)OCH2-Merrifield resin; methylamine in ethanol; dichloromethane 0.166667 h; 2: acetic anhydride With pyridine in tetrahydrofuran; dichloromethane 2 h; Further stages.;
参考文献
Organic letters, , vol. 3, # 5 p. 747 - 750
反应条件
iron(III) chloride in dichloromethane 1.) 5 min, 2.) r.t.; Yield given. Yields of byproduct given;
参考文献
Chemical Communications, , # 16 p. 1729 - 1730
反应条件
1: 1.) methyl α-D-glucopyranoside, LiBr / 1.) DMF, electrolysis (Pt, -2 V, 20-40 mA cm-2), 20 deg C, 7 h, 2.) DMF, 20 deg C, 14 h 2: pyridine View Scheme
参考文献
Carbohydrate Research, , vol. 265, # 1 p. 1 - 8
反应条件
scandium tris(trifluoromethanesulfonate) in toluene T=80°C; 0.0166667 h; optical yield given as percent de;
参考文献
Carbohydrate Research, , vol. 351, p. 121 - 125
反应条件
tin(IV) chloride in dichloromethane T=20°C; 3.3 h; Inert atmosphere; optical yield given as percent de;
参考文献
Carbohydrate Research, , vol. 344, # 13 p. 1646 - 1653
反应条件
triethylamine in dichloromethane T=20°C; 20 h;
参考文献
Chemistry - A European Journal, , vol. 18, # 20 p. 6328 - 6334
反应条件
1: N-ethyl-N,N-diisopropylamine; copper(l) iodide / dichloromethane / 12 h / 20 °C 2: ammonia; sodium / tetrahydrofuran / 0.75 h / -78 °C / |Inert atmosphere 3: pyridine; 4-(N,N-dimethlyamino)pyridine / 12 h / 20 °C View Scheme
参考文献
European Journal of Organic Chemistry, , # 35 p. 6846 - 6851
反应条件
1: ammonia; sodium / tetrahydrofuran / 0.75 h / -78 °C / |Inert atmosphere 2: pyridine; 4-(N,N-dimethlyamino)pyridine / 12 h / 20 °C View Scheme
参考文献
European Journal of Organic Chemistry, , # 35 p. 6846 - 6851
反应条件
2,2'-azo-bisisobutyronitrile; tri-n-butyl-tin hydride in tetrahydrofuran 1 h; Heating;
参考文献
Carbohydrate Research, , vol. 165, p. 281 - 298