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Synthesis, Characterization, and Reactivity of Cationic Gold Diarylallenylidene Complexes.

Publication ,  Journal Article
Kim, N; Widenhoefer, RA
Published in: Angewandte Chemie (International ed. in English)
April 2018

Methoxide abstraction from gold acetylide complexes of the form (L)Au[η1 -C≡CC(OMe)ArAr'] (L=IPr, P(t Bu)2 (ortho-biphenyl); Ar/Ar'=C6 H4 X 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 1 H NMR analysis. 13 C 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.

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Published In

Angewandte Chemie (International ed. in English)

DOI

EISSN

1521-3773

ISSN

1433-7851

Publication Date

April 2018

Volume

57

Issue

17

Start / End Page

4722 / 4726

Related Subject Headings

  • Organic Chemistry
  • 34 Chemical sciences
  • 03 Chemical Sciences
 

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MLA
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Kim, N., & Widenhoefer, R. A. (2018). Synthesis, Characterization, and Reactivity of Cationic Gold Diarylallenylidene Complexes. Angewandte Chemie (International Ed. in English), 57(17), 4722–4726. https://doi.org/10.1002/anie.201713209
Kim, Nana, and Ross A. Widenhoefer. “Synthesis, Characterization, and Reactivity of Cationic Gold Diarylallenylidene Complexes.Angewandte Chemie (International Ed. in English) 57, no. 17 (April 2018): 4722–26. https://doi.org/10.1002/anie.201713209.
Kim N, Widenhoefer RA. Synthesis, Characterization, and Reactivity of Cationic Gold Diarylallenylidene Complexes. Angewandte Chemie (International ed in English). 2018 Apr;57(17):4722–6.
Kim, Nana, and Ross A. Widenhoefer. “Synthesis, Characterization, and Reactivity of Cationic Gold Diarylallenylidene Complexes.Angewandte Chemie (International Ed. in English), vol. 57, no. 17, Apr. 2018, pp. 4722–26. Epmc, doi:10.1002/anie.201713209.
Kim N, Widenhoefer RA. Synthesis, Characterization, and Reactivity of Cationic Gold Diarylallenylidene Complexes. Angewandte Chemie (International ed in English). 2018 Apr;57(17):4722–4726.
Journal cover image

Published In

Angewandte Chemie (International ed. in English)

DOI

EISSN

1521-3773

ISSN

1433-7851

Publication Date

April 2018

Volume

57

Issue

17

Start / End Page

4722 / 4726

Related Subject Headings

  • Organic Chemistry
  • 34 Chemical sciences
  • 03 Chemical Sciences