反应条件
1.1: tetrakis(triphenylphosphine) palladium(0); sodium carbonate / ethylene glycol dimethyl ether; water / 12 h / Inert atmosphere; Reflux
2.1: trifluoroacetic acid / dichloromethane / 12 h / 20 °C / Inert atmosphere
3.1: sodium hydride / N,N-dimethyl-formamide; mineral oil / 0.5 h / 20 °C / Inert atmosphere; Cooling with ice
3.2: 12 h / 20 °C / Inert atmosphere; Cooling with ice
4.1: lithium hydroxide hydrate / tetrahydrofuran; water / 12 h / 60 °C
4.2: 20 °C
5.1: diphenyl phosphoryl azide; triethylamine / toluene / 0.17 h / 100 °C / Inert atmosphere; Microwave irradiation
6.1: pyridine / dichloromethane / 0.5 h / 20 °C / Inert atmosphere; Cooling with ice
7.1: triethylsilane; 1,3-bis-(diphenylphosphino)propane; palladium diacetate / N,N-dimethyl-formamide / 1 h / 60 °C / Inert atmosphere
8.1: methanol; trifluorormethanesulfonic acid; trimethyl orthoformate / nitromethane / 1 h / 100 °C / Inert atmosphere; Cooling with ice
View Scheme
参考文献
Hayashi, Kaori; Choshi, Tominari; Chikaraishi, Kyoko; Oda, Aimi; Yoshinaga, Rikako; Hatae, Noriyuki; Ishikura, Minoru; Hibino, Satoshi
Tetrahedron, 2012 , vol. 68, # 22 p. 4274 - 4279