Annulation-Induced Cascade Transformation of 5-Iodo-1,2,3-triazoles to 2-(1-Aminoalkyl)benzoxazoles
作者:Yury N. Kotovshchikov、Gennadij V. Latyshev、Mger A. Navasardyan、Dmitry A. Erzunov、Irina P. Beletskaya、Nikolay V. Lukashev
DOI:10.1021/acs.orglett.8b01755
日期:2018.8.3
Base-mediated cyclization of (5-iodo-1,2,3-triazolyl)phenols was proposed as a new synthetic strategy for the in situ generation of diazoimines via electrocyclic ring opening of the fused heterocycle. Cu-catalyzed amination of the intermediate diazoalkanes was employed to develop an efficient cascade approach to functionalized benzoxazoles.
(5-碘-1,2,3-三唑基)苯酚的碱介导环化被提出为通过稠合杂环的电环开环原位产生重氮亚胺的新合成策略。铜催化的中间体重氮烷的胺化反应被用于开发一种有效的级联方法来官能化苯并恶唑。