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Efficient Visible Light Photocatalysis of [2+2] Enone Cycloadditions
Abstract
We report that Ru(bipy)3Cl2 can serve as a visible light photocatalyst for [2+2] enone cycloadditions. A variety of aryl enones participate readily in the reaction, and the diastereoselectivity in the formation of the cyclobutane products is excellent. We propose a mechanism in which a photogenerated Ru(bipy)3+ complex promotes one-electron reduction of the enone substrate, which undergoes subsequent radical anion cycloaddition. The efficiency of this process is extremely high, which allows rapid, high-yielding [2+2] cyclizations to be conducted using incident sunlight as the only source of irradiation.
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Metadata
- Authors
- Ischay, M. A., Anzovino, M. E., Du, J., & Yoon, T. P.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-09-04
- Volume
- 130
- Issue
- 39
- Pages
- 12886-12887
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1999601844
- Cited by
- 1,167
- References
- 0
- FWCI
- 16.84
- Type
- journal article
- Language
- en
- Open access
- closed
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