Javier FrancosMaría Esther Moreno-NarváezVictorio CadiernoSierra, DiegoDiegoSierraKatherine ArizJohana Gómez2025-04-132025-04-132019-11-1410.3390/catal91109552-s2.0-85075044930https://cris-uv-2.scimago.es/handle/123456789/2127WOS:000502278800081The synthesis and characterization of novel gold(I) complexes containing hydrophilic ferrocenylphosphino sulfonate ligands, i.e., compounds [AuCl{(η5-C5H3PR2(SO3iPr))Fe(η5-C5H5)}] (R = Ph (2a), p-Tol (2b), Cy (2c)), are presented, including a single-crystal X-ray diffraction study on 2a. Complexes 2a–c were checked as catalysts for the intermolecular addition of carboxylic acids to nonactivated internal alkynes using water as a green reaction medium. The best results in terms of activity were obtained with 2a in combination with AgOAc, which was able to promote the selective anti addition of a variety of aromatic, aliphatic, and α,β-unsaturated carboxylic acids to both symmetrical and unsymmetrical internal alkynes at 60 °C, employing metal loadings of only 2 mol %.enacceso abiertoChemistry, PhysicalCatalysisPhysical And Theoretical Chemistryarticle