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Science China Chemistry

, Volume 53, Issue 9, pp 1978–1981 | Cite as

Synthesis and characterization of stable osmafuran starting from HC≡CCH(OH)C≡CH and OsHCl(CO)(PPh3)3

  • Hong ZhangEmail author
  • Ran Lin
  • Ming Luo
  • HaiPing XiaEmail author
Articles

Abstract

This paper presents a new convenient route to prepare osmafuran starting from readily accessible HC≡CCH(OH)C≡CH and OsHCl(CO)(PPh3)3. Treatment of a solution of OsHCl(CO)(PPh3)3 in dichloromethane with HC≡CCH(OH)C≡CH, followed by the addition of acetic acid, produced osmafuran [Os(CHC(PPh3)CO(CH2CH3))Cl(CO)(PPh3)2]Cl (2). 2 has been isolated in good yield and fully characterized. 1H and 13C NMR spectra show the characteristic downfield chemical shifts of the ring hydrogen and carbon atoms. NMR and X-ray diffraction data provide strong evidence for the aromatic nature of 2. Probably due to the effect of the phosphonium substituent, 2 exhibits remarkable thermal stability, air stability and lower reactivity.

Keywords

osmafuran metallaaromatics phosphonium salt synthesis stability 

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Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.State Key Laboratory for Physical Chemistry of Solid Surfaces; College of Chemistry and Chemical EngineeringXiamen UniversityXiamenChina

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