Defunctionalization of γ-Alkylidene-α-hydroxybutenolides by Palladium(0)-Catalyzed Reaction of Enol Triflates with Hexylboronic Acid
作者:Zafar Ahmed、Peter Langer
DOI:10.1002/ejoc.200500723
日期:2006.2
The Suzuki reaction of hexylboronic acid with enol triflates derived from γ-alkylidene-α-hydroxybutenolides resulted in reductive formation of α-unsubstituted γ-alkylidenebutenolides. The formation of the products can be explained based on an “oxidative addition/transmetalation/β-hydride elimination/reductive elimination” mechanism. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
己基硼酸与衍生自 γ-亚烷基-α-羟基丁烯内酯的烯醇三氟甲磺酸酯的 Suzuki 反应导致 α-未取代的 γ-亚烷基丁烯内酯的还原形成。产物的形成可以基于“氧化加成/金属转移/β-氢化物消除/还原消除”机制来解释。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)