A series of xanthone derivatives were synthesized by rhodium-catalyzed cycloaddition and sequential oxidation. The derivatives synthesized for excellent yields, including electron-withdrawing and electron-donating substituents, demonstrated the wide applicability of the proposed approach. The xanthones synthesized with different substituent electron effects may go through the same intermediate two
通过
铑催化环加成和连续氧化合成了一系列
呫吨酮衍
生物。合成的衍
生物具有优异的收率,包括吸电子和供电子取代基,证明了该方法的广泛适用性。不同取代基电子效应合成的
呫吨酮可以经历相同的中间体两次环加成。值得注意的是,该方案已成功集成到直接从 1-
乙炔基-2-苯氧基苯进行的一锅合成中。我们相信目前的方法可能是合成
氧杂蒽酮及其衍
生物的一个有吸引力的选择。