1,2,3,4,6-Pentamethylfulvene: a convenient precursor to substituted tetramethylcyclopentadienyl transition metal complexes
作者:Dennis M. Bensley、Eric.A. Mintz
DOI:10.1016/0022-328x(88)80303-6
日期:1988.9
mixture with LiAlH4 or LiR (R = CH3, C6H5, P(C6H5)2) gave the corresponding substituted tetramethylcyclopentadienide anions [C5(CH3)4]CH(CH3)R}− (R = H, CH3, C6H5, P(C6H5)2) in high yields. Reaction of these substituted tetramethylcyclopentadienide anions with FeCl2 in THF led to the formation of the corresponding substituted ferrocene complexes, [C5(CH3)4]CH(CH3)R}2Fe, in moderate yields.
2,3,4,5-四甲基环戊-2-烯酮与乙烯基溴化镁在THF中的反应得到1,2,3,4,6-五甲基富烯和乙烯基四甲基环戊二烯的5/1混合物。用LiAlH 4或LiR(R = CH 3,C 6 H 5,P(C 6 H 5)2)处理该混合物,得到相应的取代的四甲基环戊二烯阴离子[[C 5(CH 3)4 ] CH(CH 3) R} −(R = H,CH 3,C 6 H 5,P(C 6 H 5)2)高产。这些取代的四甲基环戊二烯阴离子与FeCl 2在THF中的反应导致相应的取代的二茂铁络合物[C 5(CH 3)4 ] CH(CH 3)R} 2 Fe的形成。