Ayyangar, N. R.; Kalkote, U. R.; Nikrad, P. V., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 9, p. 872 - 877
Ayyangar, N. R.; Kalkote, U. R.; Nikrad, P. V., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 9, p. 872 - 877
Copper-Catalyzed Tandem <i>O</i>-Vinylation of Arylhydroxylamines/[3,3]-Rearrangement/Cyclization: Synthesis of Highly Substituted Indoles and Benzoindoles
arylhydroxylamine using vinyliodonium salts as vinylation reagents to generate a transient O-vinyl-N-arylhydroxylamine that rapidly undergoes a [3,3]-sigmatropic rearrangement and subsequent cyclization/rearomatization to form a substituted indole. A wide range of highly substituted indoles and benzoindoles can be afforded in good yields. This approach is readily scalable, and the scope and application of this process
Oxoarylation of ynamides with N-aryl hydroxamic acids
作者:Changwei Chen、Hongyu Zhang、Gang Xu、Sunliang Cui
DOI:10.1016/j.cclet.2021.02.054
日期:2021.8
building blocks in organic synthesis. Therefore, the investigation for transformation of ynamides with exceptional selectivity and efficiency is attractive and interesting. Herein, we report an oxoarylation of ynamides with N-aryl hydroxamic acids. In the presence of catalytic Cu(OTf)2, both the terminal and internal ynamides could undergo an addition/[3,3] sigmatropic rearrangement cascade with N-aryl hydroxamic