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.
Pentelidene complexes of the type [Cp*E{W(CO)5}2] (Cp* = C5Me5; 1a: E = P, 1b: E= As) were reacted with the dichalcogenides R2Ch2 (R = Ph, Mes, Tipp; Ch = S,...
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