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
1: Na2CO3 / H2O / 0.33 h / 25 °C / pH:8-11 2: 1.) H2SO4 / 1.) reflux; 2.) pyridine, rt. View Scheme
参考文献
Tetrahedron, , vol. 43, # 22 p. 5261 - 5274
反应条件
1: 54 percent / 18-crown-6 / acetone 2: triphenylmethylium perchlorate, methyl 2,3,4-tri-O-acetyl-6-O-trityl-α-D-glucopyranoside / CH2Cl2 / Ambient temperature View Scheme
参考文献
Carbohydrate Research, , vol. 212, p. 77 - 91
反应条件
1: HBr / CH2Cl2 2: 54 percent / 18-crown-6 / acetone 3: triphenylmethylium perchlorate, methyl 2,3,4-tri-O-acetyl-6-O-trityl-α-D-glucopyranoside / CH2Cl2 / Ambient temperature View Scheme
参考文献
Carbohydrate Research, , vol. 212, p. 77 - 91
反应条件
bis(tri-n-butyltin)oxide 1.) toluene, reflux, 4 h, 2.) room temperature, 12 h; Multistep reaction. Further byproducts given. Yields of byproduct given;
参考文献
Journal of the American Chemical Society, , vol. 104, p. 1178
反应条件
pyridine in N,N-dimethyl-formamide 72 h; Ambient temperature; Further byproducts given;
参考文献
Carbohydrate Research, , vol. 202, p. 67 - 79
反应条件
2,4,6-trimethyl-pyridine; silver tetrafluoroborate in acetonitrile 4 h; Ambient temperature;
参考文献
Carbohydrate Research, , vol. 144, p. 137 - 147
反应条件
methanol; sulfuric acid 1.) reflux, 2.) ether extraction, aqueous phase: 3.) pyridine; Yield given. Multistep reaction. Further byproducts given. Yields of byproduct given;
参考文献
Journal of Organic Chemistry, , vol. 48, # 24 p. 4462 - 4466
反应条件
Ph3C+ClO4- in dichloromethane Ambient temperatureother 1,2-trans-glycosyl thiocyanates and also other sugar trityl ethers; Ac2O/Py for separation of byproducts; Mechanism;
参考文献
Kochetkov, Nicolay K.; Klimov, Evgeny M.; Malysheva, Nelly N.; Demchenko, Alexey V.
Carbohydrate Research, 1991 , vol. 212, p. 77 - 91
反应条件
1: methanol; D-glucopyranose With acetyl chloride T=70°C; 2 h; 2: acetic anhydride With pyridine; 4-(N,N-dimethlyamino)pyridine T=20°C;
参考文献
Canadian Journal of Chemistry, , vol. 82, # 2 p. 102 - 112
反应条件
4 A molecular sieve; iodine in dichloromethane Title compound not separated from byproducts;
参考文献
Journal of Carbohydrate Chemistry, , vol. 24, # 4-6 p. 463 - 474
