Gold(III)-catalyzed synthesis of 2,5-disubstituted furans from substituted 5-methoxyhex-3-yn-2-ols—Mechanistic outlook
作者:Sagarika Behera、Nabakumar Bera、Debayan Sarkar
DOI:10.1080/00397911.2021.1961274
日期:2021.10.18
alkynes has been applied for the synthesis of 2,5-disubstituted furans from substituted 5-methoxy-hex-3-yn-2-ols. Mechanistically, the reaction proceeds via an allenyl carbocation intermediate followed by 5-endo-dig cyclization. The high-yielding, open-air, room temperature reaction conditions applied to synthesize a series of alkyl, aryl, and hetero aryl-substituted furans provide uniqueness to the strategy
摘要 金 (III) 催化的炔烃活化已被用于从取代的 5-甲氧基-己基-3-yn-2-醇合成 2,5-二取代呋喃。从机制上讲,该反应通过烯丙基碳正离子中间体进行,然后进行5-endo-dig环化。用于合成一系列烷基、芳基和杂芳基取代的呋喃的高产率、露天、室温反应条件为该策略提供了独特性。