反应条件
1: 90 percent / DDQ / CH2Cl2; H2O / 0.17 h / Ambient temperature 2: 1.) Et3N, POCl3, 2.) Et3N / 1.) THF, 0 deg C, 1 h; room temperature, 4 h, 2.) THF, 0 deg C, 2 h; room temperature, 12 h 3: 93 percent / TFA / CH2Cl2 / 0.75 h / Ambient temperature View Scheme
参考文献
Journal of Organic Chemistry, , vol. 61, # 1 p. 192 - 201