作者:David C. Harrowven、Rory Browne
DOI:10.1016/0040-4020(96)00907-6
日期:1996.11
The paper describes a new method for the diastereoselective construction of highly substituted indanes. The key step involves a triple umpolung sequence in which a 2-lithio-2-vinyl-1,3-dithiane is first united with an aryl halide to form a ketenedithioacetal. Transmetallation of the aryl halide with an alkyllithium reagent then generates an alkyl halide and a 2-indanyl-2-lithio-1,3-dithiane. Finally
本文介绍了一种用于非对映选择性构建高度取代的茚满的新方法。关键步骤涉及三重酚醛磷酸酯顺序,其中首先将2-lithio-2-乙烯基-1,3-二硫杂环丁烷与芳基卤化物结合形成酮二硫缩醛。然后用烷基锂试剂对芳基卤化物进行金属化反应,生成烷基卤化物和2-茚满基-2-二硫代-1,3-二硫杂环丁烷。最后,这些结合起来以完成序列。