Addition reactions of cyclooctatetraene with 1,3-diphenylisobenzofuran the benzene ring as dienophile in a [4+2] cycloaddition reaction |
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| Authors: | Katsuhiro Saito Yoichi Omura Etsuro Maekawa Paul G Gassman |
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| Institution: | Department of Chemistry, Nagoya Institute of Technology Gokiso-cho, Showa-ku, Nagoya 466, Japan;Department of Chemistry, University of Minnesota Minneapolis, Minnesota 55455, U.S.A. |
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| Abstract: | Addition reactions of cyclooctatetraene with 1,3-diphenylisobenzofuran resulted in the formation of three 1:1 cycloadducts, 1, 2, and 3, and a 1:2 cycloadduct, 4. Single crystal x-ray analysis established 3 to be a cage compound formed by an unprecedented 4+2] cycloaddition reaction of 1 in which the double bond of the benzene moiety acted as the dienophile. |
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