title: A Novel Trihybrid Material Based on Renewables: An Efficient Recyclable Heterogeneous Catalyst for C-C Coupling and Reduction Reactions.
abstract: The generation of organic-inorganic hybrid materials from renewable resources and their utilization in basic and applied areas has been at the forefront of research in recent years for sustainable development. Herein, a novel organic-inorganic trihybrid material was synthesized by in situ generation of palladium nanoparticles (PdNPs) in a hybrid gel matrix based on renewable chemicals. Constituents of the hybrid gel included a pentacyclic triterpenoid arjunolic acid extractable from Terminalia arjuna and the leaf extract of Chrysophyllum cainito rich in flavonoids. We took advantage of the presence of flavonoid molecules in this hybrid gel to generate an advanced trihybrid gel through in situ reduction of doped Pd(II) salts to stable PdNPs. The xerogel of this trihybrid material was used as a recyclable heterogeneous catalyst for C-C coupling and reduction reactions in aqueous media. We also demonstrated that the in situ generated PdNPs containing trihybrid material was a more efficient catalyst than the trihybrid material generated with presynthesized PdNPs.
authors: Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
authors: Rakhi
authors: R
authors: Majumdar
authors: Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand. supawan.t@chula.ac.th.
authors: Supawan
authors: S
authors: Tantayanon
authors: Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, 721102, WB, India. braja@mail.vidyasagar.ac.in.
authors: Braja
authors: B
authors: Gopal Bag
keywords: C−C coupling; nanoparticles; palladium; sustainable chemistry; trihybrid materials