Details

Autor(en) / Beteiligte

• Kumpulainen, Esa T. T.
• Koskinen, Ari M. P.

Titel

Catalytic Activity Dependency on Catalyst Components in Aerobic Copper-TEMPO Oxidation

Ist Teil von

• Chemistry : a European journal, 2009-10, Vol.15 (41), p.10901-10911

Ort / Verlag

Weinheim: WILEY-VCH Verlag

Erscheinungsjahr

2009

Link zum Volltext

Quelle

Wiley Online Library Journals【Remote access available】

Beschreibungen/Notizen

• The influence of catalyst components in the copper–TEMPO (2,2,6,6‐tetramethylpiperidine N‐oxide) catalysed aerobic oxidation of alcohols was investigated. The type and amount of base greatly influences reactivity. The bipyridyl ligand concentration had no major influence on catalysis, but excessive amounts led to a decrease in activity for longer reaction times. The kinetic dependency for TEMPO was found to be 1.15, and for copper 2.25, which is an indication of a binuclear catalytic system. Optimised conditions with various allylic and aliphatic alcohols give good to excellent rapid oxidations. Need for speed: The influence of catalyst components in the copper–TEMPO (2,2,6,6‐tetramethylpiperidine N‐oxide)‐catalysed aerobic oxidation of alcohols is investigated. The type and amount of base greatly influences reactivity. Optimised conditions (see figure) with various allylic and aliphatic alcohols give good to excellent rapid oxidations.