反应条件
1.1: AlCl3, aluminium chloride / tetrachloroethane, 1,1,2,2- / 20 °C / Cooling with ice 2.1: hydrazine hydrate / diethylene glycol / 0.5 h / 20 °C 2.2: 120 - 215 °C 3.1: sulfuric acid / Reflux 4.1: palladium 10 on activated carbon / triglyme (triethylene glycol dimethyl ether) / 4 h / 240 °C / Inert atmosphere 5.1: methanesulfonic acid / 0.5 h / 90 °C / Inert atmosphere 6.1: n-butyllithium; N-cyclohexyl-N-isopropylamine / tetrahydrofuran; hexane / -78 °C / Inert atmosphere 6.2: 1 h / -78 °C / Inert atmosphere 7.1: palladium 10 on activated carbon / triglyme (triethylene glycol dimethyl ether) / 4 h / 240 °C / Inert atmosphere 8.1: diisobutylaluminium hydride / hexane; toluene / 1 h / -78 °C / Inert atmosphere 8.2: Inert atmosphere 9.1: methanesulfonic acid / dichloromethane / 0.5 h / 20 °C / Cooling with ice View Scheme
参考文献
Organic and Biomolecular Chemistry, , vol. 9, # 15 p. 5431 - 5435