Details

Autor(en) / Beteiligte

• Ording-Wenker, Erica C M
• Siegler, Maxime A
• Lutz, Martin
• Bouwman, Elisabeth

Titel

Catalytic catechol oxidation by copper complexes: development of a structure-activity relationship

Ist Teil von

• Dalton transactions : an international journal of inorganic chemistry, 2015-07, Vol.44 (27), p.12196-12209

Ort / Verlag

England

Erscheinungsjahr

2015

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• A large library of Cu(II) complexes with mononucleating and dinucleating ligands was synthesized to investigate their potential as catalysts for the catalytic oxidation of 3,5-di-tert-butylcatechol (3,5-DTBC). X-ray structure determination for a number of these complexes revealed relatively large Cu···Cu distances and the formation of polymeric species. Comparison of the 3,5-DTBC oxidation rates showed that ligands that stabilize the biomimetic dinuclear Cu(II) μ-thiolate complex also result in copper compounds that are much more active in the oxidation of 3,5-DTBC. This oxidation activity is however inhibited by the presence of chloride ions. The highest kcat that was observed was 6900 h(-1), which is one of the highest turnover frequencies reported so far for catechol oxidation in CH3CN.