1.1: tetrabutylammomium bromide; hydrogen bromide; dihydrogen peroxide / water / 12.5 h / 90 °C 2.1: toluene-4-sulfonic acid; benzene / water / 36 h / 85 °C 3.1: tetrabutylammomium bromide; sodium ethanolate / water / 23 h / 105 °C 4.1: oxalic acid / dichloromethane; water / 5 h / 25 °C 5.1: tetrabutylammomium bromide; hydrogen bromide / water / 0.02 h 5.2: 5 h / 25 - 90 °C 6.1: sulfuric acid / cyclohexane; water / 3.3 h / 82 °C View Scheme
参考文献
Asian Journal of Chemistry, , vol. 24, # 11 p. 4979 - 4985