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Coordination Chemistry of Gold Catalysts in Solution: A Detailed NMR Study
Author(s) -
Zhdanko Alexander,
Ströbele Markus,
Maier Martin E.
Publication year - 2012
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201201215
Subject(s) - chemistry , oxonium ion , ligand (biochemistry) , imes , denticity , medicinal chemistry , hydroamination , catalysis , cationic polymerization , stereochemistry , crystallography , ion , polymer chemistry , organic chemistry , carbene , crystal structure , biochemistry , receptor
Coordination chemistry of gold catalysts bearing eight different ligands [L=PPh 3 , JohnPhos ( L2 ), Xphos ( L3 ), DTBP, IMes, IPr, dppf, S ‐tolBINAP ( L8 )] has been studied by NMR spectroscopy in solution at room temperature. Cationic or neutral mononuclear complexes LAuX (L= L2 , L3 , IMes, IPr; X=charged or neutral ligand) underwent simple ligand exchange without giving any higher coordinate complexes. For L2 AuX the following ligand strength series was determined: MeOH≪hex‐3‐yne