Annulation-Triggered Denitrogenative Transformations of 2-(5-Iodo-1,2,3-triazolyl)benzoic Acids
作者:Vladislav A. Voloshkin、Yury N. Kotovshchikov、Gennadij V. Latyshev、Nikolay V. Lukashev、Irina P. Beletskaya
DOI:10.1021/acs.joc.2c00235
日期:2022.6.3
ability of [1,2,3]triazolobenzoxazinones to act as a source of “hidden” diazo group was discovered. These diazo precursors can be easily prepared by the intramolecular cyclization of 2-(5-iodo-1,2,3-triazolyl)benzoic acids. The Cu-catalyzed capture of the hidden diazo group allows for further functionalization through the denitrogenative pathway. The transformations proceed via the formation of either
发现了 [1,2,3] 三唑并苯并恶嗪酮作为“隐藏”重氮基团来源的能力。这些重氮前体可以很容易地通过 2-(5-iodo-1,2,3-triazolyl) 苯甲酸的分子内环化来制备。隐藏的重氮基团的 Cu 催化捕获允许通过脱氮途径进行进一步的功能化。转化通过形成重氮亚胺或重氮酰胺中间体进行。使用一锅环化/重氮捕获程序开发了各种邻氨基苯甲酰胺以及硫醇化苯并恶嗪酮的新途径。