6,7-二氢-4(5H)-苯并呋喃酮合成路线 (共 25 条)
反应条件
1: 1,3-cylohexanedione With potassium hydroxide in methanol; water T=20°C; 0.5 h; 2: monochloroacetaldehyde T=0 - 20°C;
参考文献
Sankyo Agro Company, Limited
Patent: EP1426365 A1, 2004 ;
Location in patent: Page 196 ;
反应条件
1: With sodium hydrogencarbonate in water T=20°C; pH=6 - 9; 15 h; Cooling with ice; 2: With sulfuric acid in water; ethyl acetate pH=1;
参考文献
Gomaa, Mohamed F. Y.; Pala, Nicolino; Derudas, Marco; Hasanen, Jehan Abd-Elrazik; El-Tamany, El-Sayed H.; Casule, Paola; Mariani, Alberto; Sechi, Mario
Arkivoc, 2011 , vol. 2011, # 9 p. 1 - 14
反应条件
3-chloro-benzenecarboperoxoic acid in dichloromethane T=20°C; 24 h;
参考文献
Lee, Yong Rok; Kang, Keon Yong; Lee, Gun Joon; Lee, Won Kyong
Synthesis, 2003 , # 13 p. 1977 - 1988
反应条件
sulfuric acid in water; ethyl acetate
反应条件
tin(IV) chloride T=0°C;
参考文献
Walsh, Edward J.; Stone, Guy B.
Tetrahedron Letters, 1986 , vol. 27, # 10 p. 1127 - 1130
反应条件
potassium hydroxide in methanol 24 h; Ambient temperature;
参考文献
Coppola, Gary G.
Journal of Heterocyclic Chemistry, 1984 , vol. 21, p. 1569 - 1570
反应条件
1: 77 percent / Ag2CO3, celite / acetonitrile 2: NaIO4 / methanol; H2O / 24 h / Ambient temperature 3: pyridine / CCl4 / 2 h / Heating View Scheme
参考文献
Tetrahedron Letters, , vol. 38, # 32 p. 5671 - 5674
反应条件
sulfuric acid in ethyl acetate 1 h; Yield given;
参考文献
Heterocycles, , vol. 22, # 10 p. 2313 - 2316
反应条件
1: silver tetrafluoroborate / toluene / 24 h / 20 °C / Inert atmosphere; Ionic liquid 2: toluene-4-sulfonic acid / toluene / 3 h / Inert atmosphere; Reflux View Scheme
参考文献
Bulletin of the Korean Chemical Society, , vol. 32, # 5 p. 1554 - 1558
反应条件
in toluene T=60°C; Paterno-Buechi reaction; 6 h; UV-irradiation; Further byproducts.;
参考文献
Chemistry Letters, , vol. 37, # 8 p. 822 - 823