Synthesis and reactions of the novel sulfonium-methylidene complex [Fe2(CO)2(cp)2(μ-CO){μ-C(H) (SMe2)}]SO3CF3
作者:Silvia Bordoni、Fabrizio Mazza、Valerio Zanotti
DOI:10.1016/0020-1693(94)03985-2
日期:1994.8
undergoes replacement of SMe 2 by a variety of nucleophiles X, at room temperature, affording the corresponding cationic [Fe 2 (CO) 2 (cp) 2 (μ-CO)μ-C(H)(X)}]SO 3 CF 3 (XNMe 3 , PMe 3 , PPh 3 , PHPh 2 ) or neutral [Fe 2 (CO) 2 (cp) 2 (μ- CO)μ-C(H)(X)}] (XH − , MeO − , CN − ) μ-methylidene derivatives, in good yield. The phosphonium complex [Fe 2 (CO) 2 (cp) 2 (μ- CO)μ-C(H)(PHPh 2 )}]SO 3 CF 3 has been
摘要[Fe 2(CO)2(cp)2(μ-CO)μ-C(H)(SMe)}](cp =η-C5 H 5)与MeSO 3 CF 3的反应形成forms -亚甲基络合物[Fe 2(CO)2(cp)2(μ-CO)μ-C(H)(SMe 2)}] SO 3 CF 3(3)。与Casey的亚甲基配合物[Fe 2(CO)2(cp)2(μ-CO)(μ-CH)] PF 6(1)相比,化合物3看起来更稳定且更易于处理,但仍保持以反应性为中心在μ碳。实际上3在室温下会被各种亲核试剂X取代SMe 2,从而得到相应的阳离子[Fe 2(CO)2(cp)2(μ-CO)μ-C(H)(X)} ] SO 3 CF 3(XNMe3,PMe 3,PPh 3,PHPh 2)或中性[Fe 2(CO)2(cp)2(μ-CO)μ-C(H)(X)}] (XH-,MeO-,CN-)μ-亚甲基衍生物,收率良好。NE络合物[Fe 2(C