Functionalized β-cyclodextrin as supramolecular ligand and their Pd(OAc)2 complex: highly efficient and reusable catalyst for Mizoroki–Heck cross-coupling reactions in aqueous medium

• Synthesis of aminopyridine-β-cyclodextrin supported palladium complex.
• Catalyst showed high efficiency for Mizoroki–Heck C–C coupling reactions in water.
• The recyclability of catalysts and aqueous medium makes this protocol eco-friendly.

A novel class of water soluble palladium complexes with recognition abilities based on functionalized β-cyclodextrin has been synthesized. The complex demonstrated high catalytic activity and a supramolecular platform for phosphine-free Mizoroki–Heck cross-coupling reactions in water. The efficient arylation of alkenes was carried out using different iodo- and bromo-arenes with good to excellent yields (up to 96%). The advantages, like recyclability of catalysts, operational simplicity and accessibility in aqueous medium, make this protocol eco-friendly.

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