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Highly Efficient and Recyclable ZSM-5 Anchored Pd (II) Complexes as Catalyst for the Dihydrogen Reduction of Organic Substrates

Priyanka Sagar and Rohit Kumar

HZSM-5 was used to immobilize the homogeneous Pd (II) complexes of S-triazine derivatives and anthranilic acid. They were found very efficient towards the catalytic hydrogenation of alkenes, alkynes, nitrocompounds, benzaldehyde and benzil at 25oC and 1.38 x 103 KNm-2 pressure of molecular hydrogen. At this temperature and pressure of molecular hydrogen, ZSM-5 anchored Pd (II) complexes could be used repeatedly. No diminished catalytic activity was observed even after 15-20 repeated catalytic runs. This indicated that almost negligible leaching out phenomenon of the metal or