Biomacromolecule supported N-heterocyclic carbene-palladium(II) as a novel catalyst for Suzuki-Miyaura and Mizoroki-Heck cross-coupling reactions

Author:

Antony Arnet1,Chamanmalik Masira1,Kandathil Vishal1,Sampatkumar Harini1,Sasidhar B. S.2,Yelamaggad C. V.3,Patil Siddappa1

Affiliation:

1. Jain University

2. National Institute for Interdisciplinary Science and Technology

3. Centre for Nano and Soft Matter Sciences

Abstract

Abstract The field of catalysis is ever flourishing to meet the challenges faced in our day-to-day needs keeping in mind the environmental concerns. In line with this quest, a new N-heterocyclic carbene-palladium(II) complex grafted on cellulose, a naturally available biomacromolecule from agriculture waste sugarcane bagasse (Cellu@NHC-Pd) was synthesized as a heterogeneous catalyst. The facile multistep synthesis was achieved using low-cost chemicals and mild reaction conditions. The characterization of the Cellu@NHC-Pd heterogeneous catalyst by various analytical techniques such as FT-IR, FE-SEM, EDS, HR-TEM, TG/DTA, ICP-OES and p-XRD confirmed its structure, morphology, thermal stability and chemical composition. The Cellu@NHC-Pd heterogeneous catalyst was successfully investigated for its catalytic ability in Suzuki-Miyaura and Mizoroki-Heck cross-coupling reactions under green reaction medium at ambient temperature. The heterogeneous catalyst was examined for its catalytic effectiveness in the cross-coupling reactions for various parameters like solvent, base, temperature, time and catalyst loading. Additionally, the developed heterogeneous catalyst showed very good tolerance to a variety of functional groups. Being heterogeneous, the catalyst could be easily recovered by simple filtration. The Cellu@NHC-Pd heterogeneous catalyst can be additionally probed for its catalytic excellence in other applications.

Publisher

Research Square Platform LLC

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