Bulletin of the Korean Chemical Society

  • 제25권8호
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  • Pages.1231-1237
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  • 2004
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Interconversion of Electronic Spin State of p-Substituted Arylketocarbene Reactions

  • 발행 : 2004.08.20
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초록

Rate constants for photolytic reactions of p-substituted 2-diazopropiophenones were determined in acetonitrile. The reactions show a comparatively low value of activation energy and activation enthalpy to alkylcarbenes or other arylcarbenes. The transition state corresponds to the step of a new carbonyl bond formation. The high negative ρ -values are shown in Hammett plots. The kinetics results and EPR spectrum are in accord with a phenomenon that occurs in interconversion between singlet and triplet carbenes.

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피인용 문헌

  1. Electron spin resonance vol.104, pp.1460-4787, 2008, https://doi.org/10.1039/b703988n
  2. Kinetic Topochemical Effect on Methanol Insertion into Phenyl-α-ketocarbene vol.29, pp.12, 2008, https://doi.org/10.5012/bkcs.2008.29.12.2349
  3. Ab initio studies of the reactive intermediates involved in the oxidation of acetylenes vol.848, pp.1, 2004, https://doi.org/10.1016/j.theochem.2007.09.020