Direct Olefination at the C-4 Position of Tryptophan via C–H Activation: Application to Biomimetic Synthesis of Clavicipitic Acid
作者:Qiang Liu、Qingjiang Li、Yongfan Ma、Yanxing Jia
DOI:10.1021/ol4020877
日期:2013.9.6
The first Pd-catalyzed method for direct olefination at the C4 position of tryptophan derivatives has been developed via C–H activation to prepare 4-substituted tryptophans, which could be used for the synthesis of many hemiterpenoid indole alkaloids. This reaction proceeds under mild reaction conditions and with exceptional tolerance to a variety of functional groups. Furthermore, the efficiency of
通过C–H活化开发了第一种Pd催化色氨酸衍生物C4位置直接烯化的方法,以制备4-取代的色氨酸,可用于合成许多半萜类吲哚生物碱。该反应在温和的反应条件下进行,并且对各种官能团具有优异的耐受性。此外,该方法的有效性通过克拉维酸的快速仿生合成得到证明。