Nickel-catalyzed [3+2+2] cycloaddition of ethyl cyclopropylideneacetate and diynes. Synthesis of 7,6- and 7,5-fused bicyclic compounds |
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| Authors: | Kyotaro Maeda |
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| Institution: | Department of Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku, Tokyo 162-8601, Japan |
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| Abstract: | The 3+2+2] cycloaddition reaction of ethyl cyclopropylideneacetate (1) and diynes proceeded in the presence of Ni(0) catalysts, and bicyclic compounds were isolated in good yields. The reaction provided a new approach to 7,6- and 7,5-fused bicyclic compounds. |
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