Journal
ADVANCED SYNTHESIS & CATALYSIS
Volume 360, Issue 20, Pages 3949-3959Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201800629
Keywords
Alkenes; alkynes; allenes; catalyst optimization; counter anion; gold catalysis
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Funding
- Heidelberg University
- Umicore AG Co. KG
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A comparison of versatile counter anions was investigated by means of a variety of well-known test reactions representing the key reactivity patterns of homogeneous gold catalysis, the catalytic activity was monitored by GC and H-1 NMR. As previously reported, the counter anion influence is usually more pronounced than the corresponding ligand effect. Due to this, the study is focused on the investigation of counter anions so far not included from investigation of homogeneous gold-catalyzed reactions. The examinations using so far neglected counter anions (BAr4F)(-), [B(C6F5)(4)](-), [Al(OC(CF3)(3))(4)](-) and [B(C6F5)(3)(OAcF)](-) showed surpassing or at least similar catalytic activities as the commonly used counter anions. The expanded use of counter anions can occupy an important role in future concerning catalyst optimization in gold catalysis.
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