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Dr. Qi Liu, Guozong Yue, Na Wu, Guang Lin, Dr. Yuanzhen Li, Prof. Dr. Junmin Quan, Prof. Dr. Chuang-chuang Li, Dr. Guoxin Wang and Prof. Dr. Zhen Yang Total Synthesis of (±)-Pentalenolactone A Methyl Ester Angewandte Chemie International Edition 51

Article first published online: 22 OCT 2012 | DOI: 10.1002/anie.201206705

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Ringing it up: The methyl ester of pentalenolactone A has been obtained through the stereoselective synthesis of a cyclopentenone by a combination of the Co-mediated Pauson–Khand reaction (PKR) of enyne 1, and the construction of a quaternary-carbon-based strained α-methylidene-δ-pentyrolactone core through a trimethylsilyl (TMS) mediated, telescoped intramolecular Michael olefination (TIMO) reaction of keto-phosphonate 2.

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