反应条件
1: tetrahydrofuran / 0.5 h
2: triethylamine / tetrahydrofuran; CHCl3 / 1.) 3 h, - 70 degC, 2.) 30 min, room temp.
3: toluene / 12 h / Heating
4: 89 percent / CH2Cl2 / 72 h
View Scheme
参考文献
Schoellkopf; Groth; Westphalen; Deng
Synthesis, 1981 , vol. No. 12, p. 969 - 973
