4,5,7-三甲基香豆素合成路线 （共 13 条）
反应条件
C6F5NH3(1+)*OTf(1-) in toluene
T=110°C; Pechmann condensation; 3 h; chemoselective reaction;
参考文献
Montazeri, Naser; Khaksar, Samad; Nazari, Akbar; Alavi, Seyedeh Soghra; Vahdat, Seyed Mohammad; Tajbakhsh, Mahmood
Journal of Fluorine Chemistry, 2011 , vol. 132, # 7 p. 450 - 452
反应条件
trifluoroacetic acid; Co2Rh2 in dichloromethane
T=20°C; 12 h;
参考文献
Park, Kang Hyun; Jung, Il Gu; Chung, Young Keun
Synlett, 2004 , # 14 p. 2541 - 2544
反应条件
1: 96 percent / 1,3-dicyclohexylcarbodiimide; 4-(dimethylamino)pyridine / CH2Cl2 / 2 h / 0 - 20 °C
2: 84 percent / trifluoroacetic acid / palladium(II) acetate / CH2Cl2 / 0.5 h / 20 °C
View Scheme
参考文献
Pastine, Stefan J.; Youn, So Won; Sames, Dalibor
Organic Letters, 2003 , vol. 5, # 7 p. 1055 - 1058
反应条件
anhydrous iron chloride; silver trifluoromethanesulfonate; trifluoroacetic acid in 1,2-dichloro-ethane
T=60°C; 6 h;
参考文献
Kutubi, Shahajahan; Hashimoto, Takuya; Kitamura, Tsugio
Synthesis, 2011 , # 8 art. no. F16111SS, p. 1283 - 1289
反应条件
1: 90 percent / KH
2: 1.) CeCl3 / 1.) THF, 1 h room temp., 1.5 h -78 deg C, 2.) THF, 4 h -78 deg C
3: 97.7 percent / 20percent aq. HCl / methanol / 0.17 h / 80 deg C bath temperature
View Scheme
参考文献
Nagasawa, Kazuo; Kanbara, Hajime; Matsushita, Kazuya; Ito, Keiichi
Tetrahedron Letters, 1985 , vol. 26, # 52 p. 6477 - 6480
反应条件
sulfuric acid
T=130°C; 0.333333 h;
参考文献
Talapatra, Sunil Kumar; Pal, Pijus; Biswas, Kallolmay; Shaw, Arun; Chakrabarti, Ramaprasad; Talapatra, Bani
Journal of the Indian Chemical Society, 1998 , vol. 75, # 10-12 p. 590 - 597
参考文献
Adams; Mecorney
Journal of the American Chemical Society, 1945 , vol. 67, p. 798,800
参考文献
Adams; Mecorney
Journal of the American Chemical Society, 1945 , vol. 67, p. 798,800
参考文献
Adams; Mecorney
Journal of the American Chemical Society, 1945 , vol. 67, p. 798,800
参考文献
Jordan; Thorpe
Journal of the Chemical Society, 1915 , vol. 107, p. 401
