Phosphorus-functionalized cycloheptatrienyl-cyclopentadienyl sandwich complexes

单膦和二膦配体通过金属钛、锆、铪、钒和铬的环庚三烯基-双膦夹心络合物的官能化来合成，并用于制备杂环过渡金属络合物。首先，研究了钯和铂络合物及其形成分子内金属-金属相互作用的能力。基于钯催化的反应，膦配体作为辅助配体在均相催化，如铃木宫浦和Buchwald-Hartwig耦合的潜力将被调查。寻找一种新的配体家族来取代普遍存在的二茂铁基膦配体是一个重要的目标。

Monophosphane and diphosphane ligands are synthesized by functionalization of cycloheptatrienyl-cyclopentadienyl sandwich complexes of the metals titanium, zirconium, hafnium, vanadium and chromium and used for the preparation of heterobimetallic transition metal complexes. First, palladium and platinum complexes and their ability to form intramolecular metal-metal interactions are studied. Based on palladium-catalyzed reactions, the potential of the phosphane ligands to serve as ancillary ligands in homogeneous catalysis such as Suzuki-Miyaura and Buchwald-Hartwig coupling will be investigated. It is an important goal to establish an alternative ligand family to the ubiquitous ferrocene-based phosphane ligands.