反应条件
1: 98 percent / diethyl ether / 0.67 h / Ambient temperature 2: 1.) lithium diisopropylamine, 2.) oxalic acid dihydrate, water / under nitrogen; 1.) THF, hexane, -70 deg C, 1 h, 2.) methyl alcohol, THF, room temp., 2 h View Scheme
参考文献
Journal of Organic Chemistry, , vol. 46, # 9 p. 1937 - 1938