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Dr. Yoshihiro Oonishi, Akihito Hosotani and Prof. Dr. Yoshihiro Sato Construction of Monocyclic Eight-Membered Rings: Intermolecular Rhodium(I)-Catalyzed [6+2] Cycloaddition of 4-Allenals with Alkynes Angewandte Chemie International Edition 51

Version of Record online: 12 OCT 2012 | DOI: 10.1002/anie.201206508

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Rounding up: A RhI-catalyzed intermolecular cycloaddition of 4-allenals with alkynes has been developed that provides various monocyclic eight-membered rings in good to high yields in a stereoselective manner (see scheme). In addition, the chirality of the starting allene is transferred in this reaction, thereby giving optically active monocyclic eight-membered ring compounds.

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