Photocatalytic Carbon鈥揅arbon 蟽-Bond Anaerobic Oxidation of Ketones with Water by Rhodium(III) Porphyrins

详细信息    查看全文

• 作者：Siu Yin Lee ; Kin Shing Chan
• 刊名：Organometallics
• 出版年：2013
• 出版时间：October 14, 2013
• 年：2013
• 卷：32
• 期：19
• 页码：5391-5401
• 全文大小：526K
• 年卷期：v.32,no.19(October 14, 2013)
• ISSN：1520-6041

文摘

Photocatalytic carbon鈥揷arbon 蟽-bond oxidation of unstrained ketones by water using rhodium(III) porphyrin catalyst was accomplished. The catalysis yielded the corresponding one-carbon-less carbonyl compound and H₂ with up to 30 turnovers in both aliphatic and cyclic ketones with 伪 substituents. No carbon loss was observed in aromatic ketone. Mechanistic studies suggest that (Ph₃P)Rh^III(ttp)OH (ttp = tetratolylporphyrinato dianion) is the key intermediate in the carbon鈥揷arbon 蟽-bond anaerobic oxidation.