Copper-catalyzed tandem reaction of 2-alkynylanilines with benzoquinones: efficient access to 3-indolylquinones
作者:Raveendra Jillella、Chang Ho Oh
DOI:10.1039/c8ra03712d
日期:——
A simple, mild, catalytic and efficient method for the straightforward synthesis of an interesting class of 2-aryl/alkyl-substituted-3-indolyl quinones in good to high yields is reported for the first time. This atom-efficient method proceeds via copper-catalyzed one-pot sequential intramolecular hydroamination (C–N bond formation) of 2-alkynylanilines followed by oxidative C–C coupling with benzoquinones
A one-pot access to 2-(N-substituted Amino)-Quinones or 3-indolyl-Quinones from naphthol/hydroquinone
作者:Yu Dong、Yong Chen、Zhan-Yuan Zhang、Jun-Hu Qian、Zhen-Zhen Peng、Bo Chang、Zhi-Chuan Shi、Zhong-Hui Li、Bing He
DOI:10.1016/j.tet.2023.133337
日期:2023.4
naphthol/hydroquinone with amines or indoles, such as various (hetero)aromaticamine and aliphatic amine, has been developed. The reaction proceeds through oxidation of naphthol/hydroquinone with the CuBr2 or (NH4)2S2O8 oxidant. This reaction provides efficient access to the biologically important and synthetically useful 2-amino-quinones and 3-indolyl-quinones with good yields undermildconditions. The present
从萘酚/氢醌与胺或吲哚,如各种(杂)芳胺和脂肪胺,到2-( N-取代氨基)-1,4-醌或 3-吲哚基醌的顺序一锅法已经发达。该反应通过使用CuBr 2或(NH 4 ) 2 S 2 O 8氧化剂氧化萘酚/氢醌来进行。该反应提供了在温和条件下以良好的产率有效地获得生物学上重要且合成有用的 2-氨基醌和 3-吲哚基醌。本协议简单、实用,并显示出良好的功能组耐受性。
Moehlau; Redlich, Chemische Berichte, 1911, vol. 44, p. 3615
作者:Moehlau、Redlich
DOI:——
日期:——
Novel Synthesis of 3‐Indolylquinones catalyzed by Molecular Iodine under Ultrasonic Irradiation
作者:Bing Liu、Shun‐Jun Ji、Xiao‐Ming Su、Shun‐Yi Wang
DOI:10.1080/00397910701873490
日期:2008.3.28
The conjugate addition reactions of indoles with quinones were catalyzed efficiently by molecular iodine under ultrasonic irradiation to afford 3-indolylquinones in good to excellent yields, which provided a novel, mild, convenient approach for the preparation of 3-indolylquinones.