Synthesis of Xanthones, Thioxanthones, and Acridones by the Coupling of Arynes and Substituted Benzoates
作者:Jian Zhao、Richard C. Larock
DOI:10.1021/jo0620718
日期:2007.1.1
The reaction of silylaryl triflates, CsF, and ortho-heteroatom-substituted benzoates affords a general and efficient way to prepare biologically interesting xanthones, thioxanthones, and acridones. This chemistry presumably proceeds by a tandem intermolecular nucleophilic coupling of the benzoate with an aryne and a subsequent intramolecular electrophilic cyclization.
甲硅烷基芳基三氟甲磺酸酯,CsF和邻杂原子取代的苯甲酸酯的反应提供了制备生物学上有趣的氧杂蒽酮,噻吨杂蒽和a啶酮的通用且有效的方法。据推测,该化学反应是通过苯甲酸酯与芳烃的串联分子间亲核偶联和随后的分子内亲电环化而进行的。