Journal of the American Chemical Society 2012-11-28

Tuning the reactivity of TEMPO by coordination to a Lewis acid: isolation and reactivity of MCl3(η1-TEMPO) (M = Fe, Al).

Jeremiah J Scepaniak, Ashley M Wright, Richard A Lewis, Guang Wu, Trevor W Hayton

Index: J. Am. Chem. Soc. 134(47) , 19350-3, (2012)

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Abstract

Addition of 2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPO) to MCl(3) (M = Fe, Al) results in the formation of MCl(3)(η(1)-TEMPO) [M = Fe (1), Al (2)]. Both 1 and 2 oxidize alcohols to generate ketones or aldehydes along with the reduced complexes MCl(3)(η(1)-TEMPOH) [M = Fe (3), Al (4)]. Complexes 1-4 were fully characterized, including analysis by X-ray crystallography. Additionally, control experiments indicated that neither MCl(3) (M = Al, Fe) nor TEMPO are capable of effecting the oxidation of alcohols independently.

Related Compounds

  • Ferric chloride
  • 2,2,6,6-Tetramethy...
  • Aluminium chloride
  • ALUMINUM CHL...
  • Ferric chloride he...

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