作者:Eduardo Busto、Robert C. Simon、Wolfgang Kroutil
DOI:10.1002/anie.201505696
日期:2015.9.7
conditions to afford the corresponding para‐vinylphenol derivatives while releasing only one molecule of CO2 and water as the by‐products. This transformation was achieved by designing a biocatalytic system that combines three biocatalytic steps, namely the CC coupling of phenol and pyruvate in the presence of ammonia, which leads to the corresponding tyrosine derivative, followed by deamination and decarboxylation
在大气条件下,将易于获得的取代酚与丙酮酸盐在缓冲溶液中偶联,以提供相应的对乙烯基苯酚衍生物,同时仅释放一分子的CO 2和水作为副产物。这种转化是通过设计一种生物催化系统来实现的,该系统结合了三个生物催化步骤,即在氨气存在下苯酚和丙酮酸的CC偶联,生成相应的酪氨酸衍生物,然后进行脱氨和脱羧。生物催化转化以高区域选择性进行,仅提供所需的对位产品。因此,该方法代表了一种环境友好的方法,可直接以制备规模(0.5 mmol)直接将2-,3-或2,3-二取代的苯酚乙烯基化,从而以高收率(65-83%)提供乙烯基苯酚。