反应条件
n-BuLi in dichloromethane under N2 or Ar; n-BuLi in hexane added (-80°C) to alkyne in THF; stirred (-80°C, 20 min); Cr complex in THF added; stirred (ambient temp., 30 min); solvent removed; dissolved in CH2Cl2; treated with Et3OBF4 (0°C); stirred (60 min); filtered at -20°C through silica layer using CH2Cl2 as eluent; solvent evapd.; sepd. by chromy. (silica, -20°C, pentane-CH2Cl2 2:1, 1:1 to 1:3); elem. anal.;
参考文献
Szesni, Normen; Drexler, Matthias; Maurer, Joerg; Winter, Rainer F.; De Montigny, Frederic; Lapinte, Claude; Steffens, Stefan; Heck, Juergen; Weibert, Bernhard; Fischer, Helmut
Organometallics, 2006 , vol. 25, # 24 p. 5774 - 5787
