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ChemInform Abstract: Anionic Cyclizations of Pentynones and Hexynones: Access to Furan and Pyran Derivatives.

✍ Scribed by Thomas Nicola; Ralf Vieser; Wolfgang Eberbach

Publisher: John Wiley and Sons
Year: 2010
Weight: 32 KB
Volume: 31
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200016043

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## Synthesis of pyran (and furan)-3-yl Methanols by Oxygenative Radical Cyclization. -A general one-step method for the synthesis of title compounds including carbohydrate derivatives is given using two effective catalytic systems, Bu 3 SnH/AIBN/O 2 and Co(salen)/NaBH 4 /O 2 . Competition from o