Mechanism of thermal 2+2 cycloaddition reactions between electron-donors and electron-acceptors : Reactions of heteronuclear cycloaddends,CO groups |
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Authors: | S Inagaki T Minato S Yamabe H Fujimoto K Fukui |
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Institution: | Department of Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University, Kyoto, Japan |
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Abstract: | The 2 + 2 cycloaddition and “ene” mechanisms previously proposed for electron-accepting homonuclear cycloaddends have been found to hold for heteronuclear ones. Only a difference recognized between them consists in the relative stability of intermediate species. We think the proposed mechanism including its variations can cover thermal 2 + 2 cycloaddition reactions between donors and acceptors and “ene” reactions. |
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