Tandem Diels-Alder cycloadditions of 2-pyrone-5-acrylates for the efficient synthesis of novel tetracyclolactones |
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| Authors: | Chung Soo-Im Seo Joobeom Cho Cheon-Gyu |
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| Affiliation: | Department of Chemistry, Hanyang University, Seoul 131-791, Korea. |
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| Abstract: | Readily prepared from the regioselective Pd-catalyzed coupling reactions of 3,5-dibromo-2-pyrone, 3-bromo-2-pyrone-5-carboxylates undergo tandem uninterrupted sequential Diels-Alder cycloaddition reactions with allyl vinyl ethers in a highly regio- and stereoselective fashion to provide a series of novel tetracyclolactones in good yields. |
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