Oxygenation and Oxidative Coupling Processes of Alkyl Ligands of m-Dialkylcobalt(III) Complexes with Dioxygen Catalyzed by Coenzyme Analogues in the Presence of Perchloric Acid

Tatsushi Goto, Shunichi Fukuzumi, Kunio Ishikawa, Toshio Tanakal

研究成果: Contribution to journalArticle査読

16 被引用数 (Scopus)

抄録

Oxygenation of the benzyl ligand of cis-[(PhCH2)2Co(bpy)2]+ (bpy = 2,2′-bipyridine) occurs efficiently in the presence of a catalytic amount of a coenzyme analogue, riboflavin, riboflavin-2′,3′,4′,S′-tetraacetate, lumazine, or aminopterin, in acetonitrile containing perchloric acid at 298 K to produce benzyl hydroperoxide, which decomposes to yield benzaldehyde as the final oxygenated product. In the case of ds-[R2Co(bpy)2]+ (R = Et, Me), however, no oxygenation of the ligands proceeds under the same conditions; instead, oxidative coupling of the alkyl ligands of m-[R2Co(bpy)2]+ takes place in the coenzyme-catalyzed oxidation by dioxygen to yield ethane and butane, respectively, when dioxygen is reduced to hydrogen peroxide. The origin of such a difference in the oxygenation and oxidative coupling pathways depending on the alkyl ligands is discussed based on the comparison of the products and kinetics with those of the one-electron oxidation of ds-[R2Co(bpy)2]+ by various oxidants in the absence and presence of dioxygen in acetonitrile at 298 K.

本文言語英語
ページ(範囲)1577-1584
ページ数8
ジャーナルJournal of the American Chemical Society
112
4
DOI
出版ステータス出版済み - 1 1990
外部発表はい

All Science Journal Classification (ASJC) codes

  • 触媒
  • 化学 (全般)
  • 生化学
  • コロイド化学および表面化学

フィンガープリント

「Oxygenation and Oxidative Coupling Processes of Alkyl Ligands of m-Dialkylcobalt(III) Complexes with Dioxygen Catalyzed by Coenzyme Analogues in the Presence of Perchloric Acid」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル