Bromination of phenol with NBSac over synthesized zeolite as a heterogeneous recyclable catalyst

ZSM-5 zeolite in acidic form was synthesized with a common laboratory instrument and careful procedure of heating and crystallization. Zeolite identification and characterization were performed by FT-IR, XRD and SEM techniques. Bromination of phenol was catalyzed using ZSM-5 zeolite as a catalyst and N-bromosacharin (NBSac) as a brominating agent. The nuclear as well as side-chain bromination of phenol has been achieved in high yield and substantial regioselectivity with NBromosacharin (NBSac) over synthesized zeolite.