摘要 从市售原料中合成了新的取代醌衍生物的简明合成方法。对于该合成,利用经典的光诱导的6π-电环化,然后进行氧化芳构化反应,以及随后在CuCl(OH)-TMEDA存在下进行氧化偶联反应。独特的醌衍生物通过IR,1 H和13 C NMR光谱学和质谱数据分析进行表征。在某些情况下,获得了酮二聚体作为醌合成的重要中间体。 从市售原料中合成了新的取代醌衍生物的简明合成方法。对于该合成,利用经典的光诱导的6π-电环化,然后进行氧化芳构化反应,以及随后在CuCl(OH)-TMEDA存在下进行氧化偶联反应。独特的醌衍生物通过IR,1 H和13 C NMR光谱学和质谱数据分析进行表征。在某些情况下,获得了酮二聚体作为醌合成的重要中间体。
Continuous flow photocyclization of stilbenes – scalable synthesis of functionalized phenanthrenes and helicenes
作者:Quentin Lefebvre、Marc Jentsch、Magnus Rueping
DOI:10.3762/bjoc.9.221
日期:——
A continuous flow oxidative photocyclization of stilbenederivatives has been developed which allows the scalable synthesis of backbone functionalized phenanthrenes and helicenes of various sizes in good yields.
Palladium-Catalyzed Intramolecular C-H Activation: A Synthetic Approach towards Polycyclic Aromatic Hydrocarbons
作者:Jayanta Ray、Sunanda Paul、Rathin Jana
DOI:10.1055/s-0029-1220070
日期:2010.6
A simple and convenient synthetic protocol for the construction of polycyclic aromatic hydrocarbons has been developed. A variety of phenanthrene, benzo[c]phenanthrene and chrysene derivatives was synthesized via Pd-catalyzed intramolecular C-H activation followed by acid-catalyzed water elimination.
Synthesis of Derivatives of Phenanthrene and Helicene by Improved Procedures of Photocyclization of Stilbenes
作者:Harish R. Talele、Monik J. Gohil、Ashutosh V. Bedekar
DOI:10.1246/bcsj.82.1182
日期:2009.9.15
An improved method has been developed for photocyclization of stilbene to construct phenanthrenes and benzo[c]phenanthrenes. This reaction is promoted by iodine while tetrahydrofuran is used as an ...