furnacalis (Guenée) and inhibition of this enzyme has been considered a promising strategy for the development of eco-friendly pesticides. In this article, based on the structure of the catalytic domains of OfHex1, a series of novel glycosyl triazoles were designed and synthesized via Cu-catalyzed azide-alkyne [3+2] cycloaddition reaction. To investigate the potency and selectivity of these glycosyl triazoles
Rh(<scp>iii</scp>)-Catalyzed three-component cascade annulation to produce the <i>N</i>-oxopropyl chain of isoquinolone derivatives
作者:Yuan He、Xian-Zhang Liao、Lin Dong、Fen-Er Chen
DOI:10.1039/d0ob02389b
日期:——
versatile functional groups at the N-substituents of isoquinolone scaffolds is still a great challenge. Herein, we report a novel three-component cascade annulation reaction to efficiently construct the N-oxopropyl chain of isoquinolone derivatives via rhodium(III)-catalyzed C–H activation/cyclization/nucleophilic attack, with oxazoles used both as the directing group and potential functionalized reagents
Synthesis of 2,2,2‐Trifluoroethyl Oxazoles, Oxazolines and Furans via Alkyne Oxytrifluoromethylation
作者:Jia‐Jia Dong、Song‐Lin Zhang
DOI:10.1002/adsc.201901405
日期:2020.2.21
This study reports an oxytrifluoromethylation method for construction of oxazoles and furans motif and the concurrent incorporation of a 2,2,2‐trifluoroethyl group at the aromatic C5‐position. High‐valent copper(III) trifluoromethyl compounds are crucial to this reaction that induces oxy‐trifluoromethylation of alkynes with a pendant amide/enol group functioning as the oxygen‐nucleophile. A wide substrate
Alkynesdifunctionalization is a powerful strategy in organic synthesis that provides a convenient synthetic entry for internal alkenes. The main challenge in this field was considered to be the geometry control of the newly formed double bond (thermodynamically controlled or kinetically controlled). Herein, we report a novel procedure (through the cyclic compounds broken) to completely control the
Gold‐Catalyzed One‐Pot Synthesis of Polyfluoroalkylated Oxazoles from N‐Propargylamides Under Visible‐Light Irradiation
作者:Yantao Liu、Yating Shi、Lanen Wei、Ke Zhao、Jingjing Zhao、Puyu Zhang、Xuejun Xu、Pan Li
DOI:10.1002/asia.202100614
日期:2021.9
one-pot rapid synthesis of polyfluoroalkylated oxazoles from N-propargylamides undervisiblelight irradiation has been developed. The current protocol displays excellent compatibility of radicals and gold catalysts, affording polyfluoroalkylated oxazoles in decent yields with good functional group compatibility undermildconditions.