2,2,6-三甲基-4-苯并二氢吡喃酮合成路线 (共 17 条)
反应条件
1: 83 percent / N,N-dimethylaniline / 1 h / 200 °C
2: 89 percent / Raney-Ni / ethanol / 1 h / Ambient temperature
View Scheme
参考文献
Sebok; Timar; Eszenyi; Patonay
Journal of Organic Chemistry, 1994 , vol. 59, # 21 p. 6318 - 6321
反应条件
nickel in ethanol
Ambient temperature;
参考文献
Sebok; Timar; Eszenyi; Patonay
Journal of Organic Chemistry, 1994 , vol. 59, # 21 p. 6318 - 6321
反应条件
1: Br2, aq. NaOH / 1,2-dimethoxy-ethane
2: 75 percent / ethylene glycol / 180 °C
View Scheme
参考文献
Ariamala, G.; Balasubramanian, K. K.
Tetrahedron, 1989 , vol. 45, # 1 p. 309 - 318
参考文献
Vinot, Nicole; Maitte, Pierre
Journal of Heterocyclic Chemistry, 1989 , vol. 26, p. 1013 - 1021
反应条件
copper(I) bromide dimethylsulfide complex; boron trifluoride diethyl etherate
1.) ether, -10 deg C; 2.) ether, between -70 deg C and room temp., 14 h; Yield given. Multistep reaction;
参考文献
Clarke, Paul D.; Fitton, Alan O.; Suschitzky, Hans; Wallace, Timothy W.; Dowlatshahi, Hossein A.; Suschitzki, John L.
Tetrahedron Letters, 1986 , vol. 27, # 1 p. 91 - 94
反应条件
zinc(II) chloride; trichlorophosphate
30 h; Ambient temperature; Yield given. Yields of byproduct given;
参考文献
Seboek, Peter; Jekoe, Jozsef; Timar, Tibor; Jaszberenyi, Joseph Cs.
Tetrahedron Letters, 1992 , vol. 33, # 20 p. 2791 - 2794
参考文献
Cardani
Gazzetta Chimica Italiana, 1953 , vol. 83, p. 62,68