使用路易斯酸催化剂BiCl 3,设计了一种从1,4-萘醌合成2-氨基-1,4-萘醌和1,4-萘醌-2-硫化物的新方法。该方法底物适用范围广,产物提取容易。它成本低廉,需要温和且可持续的反应条件,并可提高产品收率。此外,本研究提出了第一种用胺和芳基肼/K 2 S 2 O 8进行单锅顺序胺芳基化的技术直接从 1,4-萘醌生产芳基化 2-氨基-1,4-萘醌。这种从经历自由基偶联反应的芳基肼产生芳基自由基的操作上直接的通过自由基捕获控制实验得到了很好的证明。
Zincke, Justus Liebigs Annalen der Chemie, 1887, vol. 240, p. 137
作者:Zincke
DOI:——
日期:——
Zincke; Breuer, Justus Liebigs Annalen der Chemie, 1884, vol. 226, p. 31
作者:Zincke、Breuer
DOI:——
日期:——
Aryl-Free Radical-Mediated Oxidative Arylation of Naphthoquinones Using <i>o</i>-Iodoxybenzoic Acid and Phenylhydrazines and Its Application toward the Synthesis of Benzocarbazoledione
作者:Pravin Patil、Abhay Nimonkar、Krishnacharya G. Akamanchi
DOI:10.1021/jo500131h
日期:2014.3.7
Oxidative arylation of naphthoquinones has been developed through combination of o-iodoxybenzoic acid with arylhydrazines under mild conditions at open atmosphere. Arylated naphthoquinones with different electronic properties were obtained in moderate to good yields. The postulated radical mediated mechanism is supported by radical trapping experiments. Developed protocol for direct arylation of naphthoquinones has been extended toward short, high yielding, and an effective synthesis of antitumor-antibiotic precursor such as benzocarbazoledione.