Preparation of a hybrid organic–inorganic material containing macrocyclic triolefinic 15-membered palladium(0) complex: Catalytic activity in Suzuki cross-coupling and butadiene telomerization reactions

The synthesis of a bis-silylated 15-membered azatriolefinic macrocycle is described as well as its co-gelification with tetraethyl orthosilicate. The resulting material was treated with Pd(dba)2 affording an hybrid organic–inorganic material containing macrocyclic palladium(0) complex covalently bonded to the silica matrix. The activity of this material as catalyst or precatalyst in Suzuki cross-coupling and telomerization of butadiene with methanol and phenol is presented.