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Operationally Simple, Efficient, and Diastereoselective Synthesis of cis-2,6-Disubstituted-4-Methylene Tetrahydropyrans Catalyzed by Triflic Acid

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journal contribution
posted on 27.04.2006, 00:00 by Alessandra Puglisi, Ai-Lan Lee, Richard R. Schrock, Amir H. Hoveyda
A highly efficient (0.01 mol % of TfOH), operationally simple (room temperature, inexpensive, and commercially available catalyst), and diastereoselective (up to >98% de) method for Brønsted acid-catalyzed reaction of enol ethers to form cis-2,6-disubstituted tetrahydropyrans is disclosed.

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