反应条件
1: 89 percent / PPh3, CBr4 / CH2Cl2 / 1.) from 0 deg C to 20 deg C, 1 h, 2) 20 deg C, 14 h
2: 1.) butyllithium, HMPA, 2.) HMPA / 1.) THF, hexane, -20 deg C, 1 h, 2.) RT, 4 h
3: Dowex W-50 (H+ form) / methanol / 16 h
4: 66 percent / sodium, 1,2-ethanediol / toluene / 2 h / 98 - 100 °C
5: pyridine
View Scheme
参考文献
Hoskovec, Michal; Saman, David; Koutek, Bohumir
Collection of Czechoslovak Chemical Communications, 1990 , vol. 55, # 9 p. 2270 - 2281
