Decarboxylative aldol reaction of α,α-difluoro-β-ketocarboxylate salt: a facile method for generation of difluoroenolate
作者:Atsushi Tarui、Mayuna Oduti、Susumu Shinya、Kazuyuki Sato、Masaaki Omote
DOI:10.1039/c8ra02440e
日期:——
We developed a decarboxylative aldol reaction using α,α-difluoro-β-ketocarboxylate salt, carbonyl compounds, and ZnCl2/N,N,N′,N′-tetramethylethylenediamine. The generation of difluoroenolate proceeded smoothly under mild heating to provide α,α-difluoro-β-hydroxy ketones in good to excellent yield (up to 99%). The α,α-difluoro-β-ketocarboxylate salt was bench stable and easy to handle under air, which
我们使用 α,α-二氟-β-酮羧酸盐、羰基化合物和 ZnCl 2 / N , N , N ', N '-四甲基乙二胺开发了脱羧醛醇反应。二氟烯醇化物的生成在温和加热下顺利进行,以良好至优异的产率(高达 99%)提供 α,α-二氟-β-羟基酮。α,α-二氟-β-酮基羧酸盐具有台架稳定性,在空气中易于操作,实现了一种方便、环保的二氟亚甲基化合物合成方法。