Sol-gel immobilized catalyst systems for tandem transformations with trans-stilbene as an intermediate

• Sol-gel immobilized palladium acetate catalysts for the synthesis of trans-stilbene
• Easy recovery of immobilized catalyst
• Aqueous microemulsions as a green alternative to conventional organic solvents
• Sol-gel catalysts for tandem reactions

Tandem catalytic systems containing one or two sol-gel immobilized catalysts were successfully applied in the synthesis of trans-stilbene oxide and 1,2-diphenylethane. The catalysts were prepared from palladium and/or manganese precursors in the presence of orthosilicates using a sol-gel method and could be reused several times successfully.

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