Boehmite (γ-AlOOH) is one of the polymorph phase of aluminum oxihydroxide and inorganic lamellar compound which was formed from octahedral units of six oxygen atoms around the central aluminum. Thermal stability, non-toxicity, ease of surface modification, high specific surface area are major advantages of boehmite nanoparticles for its catalytic application. Meanwhile, boehmite nanoparticles have been rarely applied as support for preparation of heterogeneous catalysts. Therefore herein we have reported a new procedure for the preparation of immobilized palladium catalyst on boehmite nanoparticles (Pdadenine@boehmite), and successfully demonstrate its application as recoverable catalyst for carbon-carbon coupling reactions and synthesis of tetrazole derivative. All products were obtained in excellent yields and high TOF values which indicate the high efficiency of this catalyst. This catalyst was reused for several times without significant loss of its catalytic activity
