Photochemical [3 + 2] cycloaddition of 2-cyanochromone to olefins |
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| Authors: | Isao Saito Koji Shimozono Teruo Matsuura |
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| Affiliation: | Department of Synthetic Chemistry, Faculty of Engineering, Kyoto University, Kyoto 606, Japan |
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| Abstract: | Irradiation of 2-cyanochromone in the presence of olefins gave rise to [3 + 2] cycloadducts together with the formation of normal [2 + 2] cycloadducts with the product ratio being temperature-dependent. The mechanism involving a vinyl nitrene intermediate was proposed. |
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