Tetrahedron Letters

Ionic liquid promoted interrupted Feist–Benary reaction with high diastereoselectivity

BC Ranu, L Adak, S Banerjee

文献索引：Ranu, Brindaban C.; Adak, Laksmikanta; Banerjee, Subhash Tetrahedron Letters, 2008 , vol. 49, # 31 p. 4613 - 4617

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被引用次数: 37

摘要

A basic ionic liquid, 1-butyl-3-methylimidazolium hydroxide promotes the interrupted Feist– Benary reaction at room temperature under organic solvent-free conditions to produce a variety of substituted hydroxydihydrofurans. The hydroxydihydrofurans are converted to furans (Feist–Benary products) using the ionic liquid, 1-methyl-3-pentylimidazolium bromide at 70–75° C. The reactions are very clean, high yielding and highly stereoselective.