反应条件
1: 1.) NaH / 1.) 70 deg C, 45 min, 2.) THF, 25 deg C, 4 h 2: Ac2O / 0.75 h / 140 °C 3: aq. NaOH / methanol / 2 h / Heating 4: diethyl ether 5: phosphorous tribromide / 1.) 25 deg C, 12 h, 2.) 80 deg C, 1 h 6: NaI / dimethylformamide / 3 h / 50 °C 7: 1,8-diazabicyclo<5.4.0>undec-7-ene (DBU) / dimethylformamide / 3 h / 80 °C View Scheme
参考文献
Rousseau, G.; Slougui, N.
Tetrahedron, 1985 , vol. 41, # 13 p. 2653 - 2664
