3’,4’,5’,5,7-五甲氧基黄酮合成路线 (共 16 条)
反应条件
sodium methylate in methanol T=0 - 5°C;
参考文献
Bose, Gopal; Mondal, Ejabul; Khan, Abu T; Bordoloi, Manob J.
Tetrahedron Letters, 2001 , vol. 42, # 50 p. 8907 - 8909
反应条件
sulfuric acid in ethanol; chloroform 2 h; Ambient temperature;
参考文献
Briggs, Malcolm T.; Duncan, Graham L. S.; Thornber, Craig W.
Journal of Chemical Research, Miniprint, 1982 , # 9 p. 2461 - 2487
反应条件
1: in pyridine T=70 - 75°C; Baker-Venkataraman synthesis; 12 h; Heating; 2: With potassium hydroxide in pyridine T=60 - 70°C; 5 h; 3: With sulfuric acid in acetic acid T=60 - 70°C; 5 h; Heating;
参考文献
Mateeva, Nelly N.; Kode, Rao N.; Redda, Kinfe K.
Journal of Heterocyclic Chemistry, 2002 , vol. 39, # 6 p. 1251 - 1258
反应条件
1.1: anhydr. K2CO3 / acetone / 0.5 h / 50 - 60 °C 2.1: pyridine / 12 h / 70 - 75 °C / Heating 2.2: powdered KOH / pyridine / 5 h / 60 - 70 °C 2.3: 50 percent / cc. H2SO4 / acetic acid / 5 h / 60 - 70 °C / Heating View Scheme
参考文献
Journal of Heterocyclic Chemistry, , vol. 39, # 6 p. 1251 - 1258
反应条件
potassium hydroxide in pyridine 48 h; Ambient temperature;
参考文献
Chemical & Pharmaceutical Bulletin, , vol. 37, # 1 p. 119 - 123
反应条件
1: 80 percent / n-tetrabutylammonium tribromide / CH2Cl2 / 0 - 5 °C 2: 85 percent / K2CO3 / CH2Cl2 / 20 °C 3: 74 percent / NaOMe / methanol / 0 - 5 °C View Scheme
参考文献
Tetrahedron Letters, , vol. 42, # 50 p. 8907 - 8909
反应条件
1: 85 percent / K2CO3 / CH2Cl2 / 20 °C 2: 74 percent / NaOMe / methanol / 0 - 5 °C View Scheme
参考文献
Tetrahedron Letters, , vol. 42, # 50 p. 8907 - 8909
反应条件
1.1: BF3*Et2O 2.1: anhydr. K2CO3 / acetone / 0.5 h / 50 - 60 °C 3.1: pyridine / 12 h / 70 - 75 °C / Heating 3.2: powdered KOH / pyridine / 5 h / 60 - 70 °C 3.3: 50 percent / cc. H2SO4 / acetic acid / 5 h / 60 - 70 °C / Heating View Scheme
参考文献
Journal of Heterocyclic Chemistry, , vol. 39, # 6 p. 1251 - 1258
反应条件
1: 1.27 g / pyridine 2: KOH / pyridine / 48 h / Ambient temperature View Scheme
参考文献
Chemical & Pharmaceutical Bulletin, , vol. 37, # 1 p. 119 - 123
反应条件
1: 1.27 g / pyridine 2: KOH / pyridine / 48 h / Ambient temperature View Scheme
参考文献
Chemical & Pharmaceutical Bulletin, , vol. 37, # 1 p. 119 - 123