Copper(I)-Catalyzed Synthesis of Pyrazoles from Phenylhydrazones and Dialkyl Ethylenedicarboxylates in the Presence of Bases
作者:Guosheng Huang、Chaowei Ma、Yanmei Li、Ping Wen、Rulong Yan、Zhiyong Ren
DOI:10.1055/s-0030-1260552
日期:2011.6
An easy and efficient copper-catalyzed reaction for the synthesis of polysubstituted pyrazoles from phenylhydrazones and dialkyl ethylenedicarboxylates is described. This reaction can tolerate a range of functionalities, and the corresponding adducts can be obtained in moderate to good yields.
本研究介绍了一种简单高效的铜催化反应,用于从苯肼和二烷基乙二酸酯合成多取代吡唑。该反应可容忍一系列官能团,并能以中等至良好的产率获得相应的加合物。