作者:Bernhard Wünsch、Torsten Schläger、Christoph Oberdorf、Bastian Tewes
DOI:10.1055/s-2008-1067021
日期:2008.6
An efficient one-pot synthesis of 2-arylethanol derivatives using ethylene sulfate as a C2 building block is described. High yields are obtained upon trapping of aryllithium intermediates generated by halogen-metal exchange or directed metalation with ethylene sulfate. The resulting heteroaryl or phenylethanol derivatives represent versatile building blocks for the synthesis of annulated pyran derivatives by oxa-Pictet-Spengler reaction.
描述了使用硫酸乙烯酯作为 C2 结构单元的 2-芳基乙醇衍生物的有效一锅法合成。通过捕获通过卤素-金属交换或用硫酸乙烯酯直接金属化产生的芳基锂中间体,可以获得高产率。所得杂芳基或苯基乙醇衍生物代表了通过 oxa-Pictet-Spengler 反应合成环状吡喃衍生物的通用结构单元。