論文

査読有り
2012年3月

An Isolable NHC-Stabilized Silylene Radical Cation: Synthesis and Structural Characterization

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
  • Hiroaki Tanaka
  • ,
  • Masaaki Ichinohe
  • ,
  • Akira Sekiguchi

134
12
開始ページ
5540
終了ページ
5543
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/ja301180v
出版者・発行元
AMER CHEMICAL SOC

The silyl-substituted silylene-NHC complex bis(tri-tert-butylsilyl)silylene-(1,3,4,5-tetramethylimidazol-2-ylidene) [((Bu3Si)-Bu-t)(2)Si:<--NHCMe, 2] was synthesized and isolated as air- and moisture-sensitive orange crystals by reductive debromination of the dibromosilane ((Bu3Si)-Bu-t)(2)SiBr2 (1) with 2.0 equiv of KC8 in the presence of NHCMe. In addition, the silylene-NHC complex 2 cleanly underwent one-electron oxidation with 1.0 equiv of Ph3C+center dot Ar4B- (Ar4B- = tetrakis[4-(tert-butyldimethylsilyl)-2,3,5,6-tetrafluorophenyl]borate) in benzene to afford the NHC-stabilized silylene radical cation [((Bu3Si)-Bu-t)(2)Si<--NHCMe](center dot+)center dot Ar4B- (3). The radical cation 3 was isolated as air- and moisture-sensitive yellow crystals and structurally characterized by X-ray crystallography and electron paramagnetic resonance spectroscopy, which showed that 3 has a planar structure with a pi-radical nature.

Web of Science ® 被引用回数 : 51

リンク情報
DOI
https://doi.org/10.1021/ja301180v
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000302489500029&DestApp=WOS_CPL