DOI: 10.1002/aoc.70634 ISSN: 0268-2605
Efficient Bimetallic Copper(I) Catalysts for the Cross‐Coupling of Alkynes With Dialkylphosphites
Abdollah Neshat, Babak Kaboudin, Hesam Esfandiari, Meysam Kakavand, Maryam Asvadi, Vaclav Eigner, Monika Kucerakova, Michal Dusek, Yanlong GuABSTRACT
A series of copper(I) complexes with phosphine and sulfur donors was synthesized and characterized using multinuclear NMR spectroscopy and single‐crystal X‐ray crystallography techniques. These complexes were investigated for their ability to facilitate the cross‐coupling reaction of terminal alkynes with dialkylphosphites. Among the tested complexes, a bimetallic complex with reduced steric hindrance and cuprophilic interactions exhibited high activity and selectivity in coupling reactions. The copper(I)‐based bimetallic complex demonstrated significant catalytic activity in the cross‐coupling of a broad range of dialkylphosphites with phenyl acetylene under low catalyst loading at refluxing temperature of acetonitrile.