Synthesis and characterization of a new zwitterionic palladium complex as an environmentally friendly catalyst for the Heck-Mizoroki coupling reaction in GVL

Paul Raithby, Mojtaba Bagherzadeh, Hamed Mahmoudi, Saeed Ataie, Mohammad Bahjati, Reza Kia, Luigi Vaccaro

OAI: oai:purehost.bath.ac.uk:publications/fc67781c-fbe9-4612-8840-1915cbce6bc3 • DOI: https://doi.org/10.1016/j.mcat.2019.110406

A new zwitterionic Palladium (II) complex has been synthesized by the one-pot mixing of Pd(OAc)2, 2-aminophenol and (3-formyl-4-hydroxy-5-methylbenzyl) triphenylphosphonium chloride, in refluxing ethanol. The metal complex formed was characterized by 1H NMR, 13C NMR, 31P NMR and X-ray crystallographic technique and its efficiency tested as a homogeneous pre-catalyst in Heck-Mizoroki cross coupling reaction using γ-Valerolactone (GVL) as a biomass-derived green medium. All the products were obtained in good to excellent yields.

Cross-coupling reactions Green chemistry Heck-Mizoroki coupling Zwitterionic complex /dk/atira/pure/subjectarea/asjc/1500/1503 name=Catalysis /dk/atira/pure/subjectarea/asjc/1500/1508 name=Process Chemistry and Technology /dk/atira/pure/subjectarea/asjc/1600/1606 name=Physical and Theoretical Chemistry