Catalysis of transition metal-functionalized hydrotalcites for the Baeyer-Villiger oxidation of ketones in the presence of molecular oxygen and benzaldehyde

✍ Scribed by Kiyotomi Kaneda; Shinji Ueno; Toshinobu Imanaka

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 272 KB
• Volume: 102
• Category: Article
• ISSN: 1381-1169
• DOI: 10.1016/1381-1169(95)00055-0

✦ Synopsis

Multi-metallic hydrotalcites consisting of magnesium, aluminum, and iron, or copper elements were prepared, which catalyzed the Baeyer-Villiger oxidation using a combination system of molecular oxygen and benzaldehyde. In particular, the Mg-Al(\mathrm{Fe}-\mathrm{CO}{3}) hydrotalcite efficiently oxidized various cyclic ketones to give high yields of the corresponding lactones, while in the case of the (\mathrm{Mg}-\mathrm{Al}-\mathrm{Cu}-\mathrm{CO}{3}) hydrotalcite, bicyclic ketones were oxidized almost quantitatively.