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Updated: May 21, 2026

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
Published on: March 20, 2017
Stepwise activation of "non-innocent" Cp* substituents--a Cp* based cascade reaction
Markus Stubenhofer1, Giuliano Lassandro, Gábor Balázs
1Institute of Inorganic Chemistry, University of Regensburg, D-93040 Regensburg, Germany.
Abstract:
Reactions of Cp* substituted pentelidene complexes with the primary phosphine Cp*PH(2) yield novel polycyclic phosphorus/arsenic and carbon containing cage compounds via cascade-like reactions. These reactions include a sequence of nucleophilic addition reactions, intramolecular hydrophosphination (partially hydroarsination) reactions, retro-Diels-Alder reactions with Cp*H elimination and subsequent [2+4]-cycloadditions.
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