反应条件
1: 1) n-BuLi, 2) HMPA / 1) THF, -78 to 0 deg C, 25 min, 2) 0 to 23 deg C, 12 h
2: 95 percent / camphorsulfonic acid / methanol; H2O / 2 h / Heating
3: 94 percent / toluene / Heating; 5 to 15 min
4: 1,2,3-trimethyl-1,3-diaza-2-phospholidine / 50 h / -20 - -5 °C
View Scheme
参考文献
Semmelhack, M. F.; Gallagher, James
Tetrahedron Letters, 1993 , vol. 34, # 26 p. 4121 - 4124
