Radical Cation Diels鈥揂lder Cycloadditions by Visible Light Photocatalysis

详细信息    查看全文

• 作者：Shishi Lin ; Michael A. Ischay ; Charles G. Fry ; Tehshik P. Yoon
• 刊名：Journal of the American Chemical Society
• 出版年：2011
• 出版时间：December 7, 2011
• 年：2011
• 卷：133
• 期：48
• 页码：19350-19353
• 全文大小：809K
• 年卷期：v.133,no.48(December 7, 2011)
• ISSN：1520-5126

文摘

Ruthenium(II) polypyridyl complexes promote the efficient radical cation Diels鈥揂lder cycloaddition of electron-rich dienophiles upon irradiation with visible light. These reactions enable facile [4 + 2] cycloadditions that would be electronically mismatched under thermal conditions. Key to the success of this methodology is the availability of ligand-modified ruthenium complexes that enable rational tuning of the electrochemical properties of the catalyst without significantly perturbing the overall photophysical properties of the system.