4.8 Article

Tuning the Reactivity of TEMPO by Coordination to a Lewis Acid: Isolation and Reactivity of MCl3(η1-TEMPO) (M = Fe, Al)

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 47, Pages 19350-19353

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja309499h

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Funding

  1. National Science Foundation [CHE 1059097]
  2. Alfred P. Sloan Foundation
  3. Direct For Mathematical & Physical Scien [1059097] Funding Source: National Science Foundation
  4. Division Of Chemistry [1059097] Funding Source: National Science Foundation
  5. Division Of Chemistry
  6. Direct For Mathematical & Physical Scien [1040541] Funding Source: National Science Foundation

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Addition of 2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPO) to MCl3 (M = Fe, Al). results in the formation of MCl3(eta(1)-TEMPO). [M = Fe (1), Al (2)] Both 1 and 2:oxidize alcohols to. generate ketones or aldehydes 'along' with the reduced complexes MCl3(eta(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 MCl3 (M = Al, Fe)nor, TEMPO are capable of effecting the Oxidation:of alcohols independently.

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