Magnetically retractable tea extract stabilized palladium nanoparticles for denitrogenative cross-coupling of aryl bromides with arylhydrazines under green conditions: An alternate route for the biaryls synthesis
Aryl hydrazines; Biphenyls; Denitrogenative coupling; Green condition; Heterogeneous catalysis; Magnetic nanocatalyst
Novel palladium based magnetic nanocatalyst was synthesized by the co-precipitation method and coated with silica and tea extract as stabilizing agent. Palladation onto the prepared nanocomposite was done to get ION-SiO2/TE-Pd(0) catalyst. Our study is one of the limited number of studies reported for the catalytic denitrogenative coupling of arylbromide and arylhydrazine. This led to the construction of important substituted biaryls bearing various substituents with 8292% yields. The synthesized nanocatalyst was characterized using structural and morphological characterization techniques. It was also observed that only 2 mol% of ION-SiO2/TE-Pd(0) catalyst was sufficient for the catalysis and reusable upto six cycles. 2024 The Authors
https://doi.org/10.1016/j.catcom.2024.106862 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85184781427&doi=10.1016%2fj.catcom.2024.106862&partnerID=40&md5=17f87374a0d15ad55987bdb23051b508
Hegde S., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India; Nizam A., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India