Enantioselective Synthesis of 1,2-Dihydronaphthalenes via Oxidative N-Heterocyclic Carbene Catalysis
作者:Saima Perveen、Zhifei Zhao、Guoxiang Zhang、Jian Liu、Muhammad Anwar、Xinqiang Fang
DOI:10.1021/acs.orglett.7b00555
日期:2017.5.19
diastereo- and enantioselective N-heterocyclic carbene-catalyzed cascade annulation reactions using benzodiketones and enals under oxidative conditions, which afford a variety of 1,2-dihydronaphthalenes with two adjacent stereocenters in up to 99% yield, with >20:1 dr, and up to 99% ee, are reported. Furthermore, the product can be easily transformed to a series of useful compounds such as alcohol, amide,
1,2-二氢萘在药物和合成化学中都是重要的分子,但是这类分子的催化不对称结构的方法受到限制。在氧化条件下,使用苯并二酮和对映体在非对映和对映选择性的N-杂环卡宾催化的级联环合反应中,可以得到具有相邻两个立构中心的各种1,2-二氢萘,收率高达99%,> 20:1 dr,并报告了高达99%的ee。此外,该产物可以容易地转化为一系列有用的化合物,例如醇,酰胺和环氧化物。