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Arylgold(I) Complexes from Base-Assisted Transmetalation: Structures, NMR Properties, and Density-Functional Theory Calculations
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DOI：10.1021/ic3009464.png)
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Abstract
En 中文
The synthesis of gold(I) complexes of the type LAuR (L = PCy3, IPr; R = aryl; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) starting from LAuX (X = Br, OAc) and boronic acids in the presence of Cs2CO3 has been investigated. The reactions proceed smoothly in good to excellent yields over the course of 24-48 h in isopropyl alcohol at 50-55 degrees C. The aryl groups include a variety of functionalities and steric bulk, and in two cases, are heterocyclic. All of the products have been characterized by multinuclear NlVIR spectroscopy and elemental analysis and most by X-ray crystallography. This work affirms that, almost without exception, base-assisted auration is a useful and reliable way to form gold-carbon bonds.
Keywords:
ELECTROPHILIC DISPLACEMENT-REACTIONS
GOLD BOND FORMATION
COUPLING-CONSTANTS
CRYSTAL-STRUCTURES
3+2 CYCLOADDITION
CARBON
STATE
PROTODEBORONATION
CATALYSIS
EMISSION
Journal
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