Ir-Catalyzed Intramolecular Transannulation/C(sp<sup>2</sup>)–H Amination of 1,2,3,4-Tetrazoles by Electrocyclization
作者:Sandip Kumar Das、Satyajit Roy、Hillol Khatua、Buddhadeb Chattopadhyay
DOI:10.1021/jacs.8b05343
日期:2018.7.11
An efficient strategy for the intramolecular denitrogenative transannulation/C(sp2)-H amination of 1,2,3,4-tetrazoles bearing C8-substituted arenes, heteroarenes, and alkenes is described. The process involves the generation of the metal-nitrene intermediate from tetrazole by the combination of [Cp*IrCl2]2 and AgSbF6. It has been shown that the reaction proceeds via an unprecedented electrocyclization
描述了一种对含有 C8 取代芳烃、杂芳烃和烯烃的 1,2,3,4-四唑进行分子内脱氮环化/C(sp2)-H 胺化的有效策略。该过程涉及通过 [Cp*IrCl2]2 和 AgSbF6 的组合从四唑生成金属-氮烯中间体。已经表明该反应通过前所未有的电环化过程进行。该方法已成功应用于合成各种 α-咔啉和 7-氮杂吲哚。