Halo-Enediynes: Probing the Electronic and Stereoelectronic Contributions to the Bergman Cycloaromatization
作者:Gary W. Plourde、Philip M. Warner、Dennis A. Parrish、Graham B. Jones
DOI:10.1021/jo025763e
日期:2002.7.1
strategy. DFT analysis, initially used to identify synthesis candidates, was also employed to rationalize the propensity for cycloaromatization of the compounds. In all cases studied the halogen atom had a strongly retardative effect on the thermal Bergman cycloaromatization reaction. The isolation of the first C-9 monochloroenediyne is noteworthy, and may find application in prodrug design.
利用类胡萝卜素偶联策略制备了一系列卤素取代的环状二烯炔。最初用于鉴定合成候选物的DFT分析也用于合理化化合物的环芳烃化倾向。在所有研究的案例中,卤素原子对热伯格曼环芳烃化反应均具有强烈的阻滞作用。值得注意的是,第一个C-9一氯代二炔的分离非常重要,可能会在前药设计中得到应用。