反应条件
1: 93 percent / PdCl2(dppf) / tetrahydrofuran / 15 h / Heating 2: 97 percent / AlCl3 / CH2Cl2 / 0.25 h / 0 °C 3: 95 percent / BBr3 / CH2Cl2 / 4 h / -78 - 25 °C 4: 87 percent / DMAP / pyridine / 1.) 0 deg C -> 25 deg C, 1 h, 2.) 25 deg C, 48 h 5: 71 percent / LiCl, 4A sieves, Me4Sn, 2,6-di-tert-butylhydroxytoluene / PdCl2(dppf) / dimethylformamide / 12 h / 90 °C / 2585.7 Torr 6: 1.) LiHMDS, 2,2,2-trifluoroethyl trifluoroacetate, 2.) MsN3, Et3N / 1.) THF, -78 deg C, 45 min, 2.) MeCN, H2O, 25 deg C, 6 h 7: 64 percent / benzene / 24 h / Ambient temperature; Irradiation 8: 84 percent / n-Bu4NF, O2 / tetrahydrofuran / 40 h / 25 °C View Scheme
参考文献
Danheiser, Rick L.; Casebier, David S.; Firooznia, Fariborz
Journal of Organic Chemistry, 1995 , vol. 60, # 26 p. 8341 - 8350
