Bulletin of the Korean Chemical Society

  • 제15권6호
  • /
  • Pages.469-473
  • /
  • 1994
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  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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An Estimation of the $\pi$-Bond Energy of 1-Methyl-1-Phenyl-2-Neopentylsilene

  • Lee Myong Euy (Department of Chemistry, Yonsei University) ;
  • Paul R. Jones (Department of Chemistry, University of North Texas)
  • 발행 : 1994.06.20
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초록

The E-and Z-isomers of 1-methyl-l-phenyl-2-neopentylsilene, generated by the sealed tube thermolyses of their anthracene adducts are stereospecifically trapped by trimethylmethoxysilane to give diastereomeric adducts. The temperature dependence of the ratio of the two diastereomers obtained when the silene formed from the pure E-or Z-anthracene adduct was trapped at higher temperatures permitted the determination of an activation energy for the silene isomerization. The activation energies for the E-to Z-and Z-to E-silene isomerization are $45{\pm}$6 and $20{\pm}4$ kcal $mol^{-1}$, respectively. The significance of these values is discussed.

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참고문헌

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피인용 문헌

  1. Mechanism of the Thermal Z⇌E Isomerization of a Stable Silene; Experiment and Theory vol.131, pp.41, 2019, https://doi.org/10.1002/ange.201907864
  2. Mechanism of the Thermal Z⇌E Isomerization of a Stable Silene; Experiment and Theory vol.58, pp.41, 1994, https://doi.org/10.1002/anie.201907864