Iminoiodane- and Brønsted Base-Mediated Cross Dehydrogenative Coupling of Cyclic Ethers with 1,3-Dicarbonyl Compounds
作者:Ciputra Tejo、Xiao Sim、Bo Lee、Benjamin Ayers、Chung-Hang Leung、Dik-Lung Ma、Philip Chan
DOI:10.3390/molecules200713336
日期:——
A one-pot, two-step approach to prepare 2-tetrahydrofuran and -pyran substituted 1,3-dicarbonyl compounds by PhI=NTs-mediated amination/Brønsted base-catalyzed cross dehydrogenative coupling (CDC) reaction of the cyclic ether and 1,3-dicarbonyl derivative under mild conditions is reported. The reaction is compatible with a variety of cyclic ethers and 1,3-dicarbonyl compounds, affording the corresponding coupled products in moderate to good yields of up to 80% over two steps.
报道了一种一步合成法,通过PhI=NTs介导的胺化作用/布朗斯台德碱催化的交叉脱氢偶联反应(CDC),在温和条件下制备二氢呋喃和吡喃取代的1,3-二羰基化合物。该反应适用于多种环状醚和1,3-二羰基衍生物,经过两步反应,相应偶联产物产率可达中等至良好水平,最高可达80%。