Copper-Mediated [3 + 2] Oxidative Cyclization Reaction of <i>N</i>-Tosylhydrazones and β-Ketoesters: Synthesis of 2,3,5-Trisubstituted Furans
作者:Yubing Huang、Xianwei Li、Yue Yu、Chuanle Zhu、Wanqing Wu、Huanfeng Jiang
DOI:10.1021/acs.joc.6b00568
日期:2016.6.17
The first attempt utilizing N-tosylhydrazones as two-carbon synthons has been successfully achieved, which underwent a copper-mediated [3 + 2] oxidative cyclization reaction to afford 2,3,5-trisubstituted furans in moderate to good yields. The features of this method include inexpensive metal catalyst, readily available substrates, high regioselectivity and convenient operation. The studies provide
已成功实现了使用N-甲苯磺酰hydr作为二碳合成子的首次尝试,该尝试进行了铜介导的[3 + 2]氧化环化反应,以中等至良好的收率提供了2,3,5-三取代的呋喃。该方法的特征包括廉价的金属催化剂,易于获得的底物,高区域选择性和方便的操作。这些研究为进一步探索N-甲苯磺酰hydr的强大而多样的反应能力提供了重要的途径。