zinc in ethanol under N2; Ru salt stirred in degassed EtOH until complete dissolution had occurred (2-3 h); 1 equiv. of cyclopentadiene added followed by 2.7 equiv. of tetramethylcyclopentadiene; Zn dust added slowly; heated at reflux for 6 h; solvent and volatiles removed under vac.; extd. with hot hexanes; filtered through Celite; filtrate purified on Al2O3 column (hexanes); solventremoved by rotary evapn.; mixt. of (Me4Cp)CpRu : Cp2Ru : (Me4Cp)2Ru = 46.7percent : 21.4percent : 31.9 percent; without sepn.;
参考文献
Shea, Timothy M.; Westmoreland, T. David
Inorganic Chemistry, 2000 , vol. 39, # 7 p. 1573 - 1577
