Copper-Catalyzed Inter/Intramolecular <i>N</i>-Alkenylation of Benzimidazoles via Tandem Processes Involving Selectively Mild Iodination of sp<sup>3</sup> C–H Bond at α-Position of Ester
作者:Ting-Ting Lai、Dan Xie、Cheng-He Zhou、Gui-Xin Cai
DOI:10.1021/acs.joc.6b01465
日期:2016.10.7
copper catalyst. Both intermolecular and intramolecular reactions included tandem processes, in which selective iodination of sp3 C–H bond at the α-position of ester under mild conditions was demonstrated for the first time. Tandem reactions involving sp3 C–H activation via α-iodo ester intermediate under copper catalysis efficiently provided more than 20 novel azole compounds, and free radicals were not
N /烯基苯并咪唑的sp 2 C–N键形成的分子间/分子间方法是在与铜催化剂缔合的碘化物阴离子存在下完成的。分子间和分子内反应都包括串联过程,其中首次证明了在温和条件下,在酯的α-位上sp 3 C–H键的选择性碘化。在铜催化下,通过α-碘代酯中间体通过sp 3 C–H激活的串联反应有效地提供了20多种新型唑化合物,并且自由基不参与该转化。