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- Title
Synthesis, Characterization, and Reactivity of Cationic Gold Diarylallenylidene Complexes.
- Authors
Kim, Nana; Widenhoefer, Ross A.
- Abstract
Abstract: Methoxide abstraction from gold acetylide complexes of the form (L)Au[η1‐C≡CC(OMe)ArAr′] (L=IPr, P(<italic>t</italic>Bu)2(<italic>ortho</italic>‐biphenyl); Ar/Ar′=C6H4X where X=H, Cl, Me, OMe) with trimethylsilyl trifluoromethanesulfonate (TMSOTf) at −78 °C resulted in the formation of the corresponding cationic gold diarylallenylidene complexes [(L)Au=C=C=CArAr′]+ OTf− in ≥85±5 % yield according to 1H NMR analysis. 13C NMR and IR spectroscopic analysis of these complexes established the arene‐dependent delocalization of positive charge on both the C1 and C3 allenylidene carbon atoms. The diphenylallenylidene complex [(IPr)Au=C=C=CPh2]+ OTf− reacted with heteroatom nucleophiles at the allenylidene C1 and/or C3 carbon atom.
- Subjects
COMPLEX compounds synthesis; METAL complexes; ACETYLIDES; GOLD compounds; METHANESULFONATES; NUCLEOPHILES
- Publication
Angewandte Chemie, 2018, Vol 130, Issue 17, p4812
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201713209