Synthesis of highly functionalized 9,10-phenanthrenequinones by oxidative coupling using MoCl5 |
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Authors: | Trosien Simon Waldvogel Siegfried R |
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Affiliation: | Institute of Organic Chemistry, Duesbergweg 10-14, Johannes Gutenberg-University Mainz, 55128 Mainz, Germany. |
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Abstract: | The strong oxidative power of molybdenum pentachloride gives rise to an efficient oxidative C-C bond formation of benzil derivatives to the corresponding 9,10-phenanthrenequinones. A highly complementary method to previous approaches was developed. The required derivatives are accessible in a modular fashion and in excellent yields. By this approach the orchid-derived natural product cypripediquinone A was synthesized for the first time. |
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