COBALT DOPED ZNS NANOPARTICLES AS A RECYCLABLE CATALYST FOR AQUEOUS MEDIATED SYNTHESIS OF 2,4,5-TRIARYL-1H-IMIDAZOLES UNDER ULTRASONIC IRRADIATION

Anshu Dandia, Vijay Parewa, Amit Sharma, Kuldeep S. Rathore

Abstract


Facile and efficient synthesis of 2,4,5-triarylimidazoles has been achieved by employing three-component one-pot reaction using aromatic aldehydes, benzil and NH4OAc  in the presence of  Co doped ZnS nanoparticles in water under ultrasonic irradiation. Doping of Co promotes the activity and selectivity of ZnS nanoparticles indicated by high TOF value. The protocol offers advantages in terms of higher yields, short reaction times, and mild reaction conditions, with reusability of the catalyst.


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DOI: http://dx.doi.org/10.17628/ecb.2013.2.971-974

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