Heck-Matsuda Arylation as a Strategy to Access Kavalactones Isolated from Polygala sabulosa, Piper methysticum, and Analogues
作者:Cristian Soldi、Angélica V. Moro、Moacir G. Pizzolatti、Carlos R. D. Correia
DOI:10.1002/ejoc.201200308
日期:2012.7
three bioactive pyrones isolated from Polygala sabulosa (i.e., 1, 4, and 7) and eight isolated from Piper methysticum (i.e., 8–10, 13, 15, and 18–20) using the Heck–Matsuda arylation as the key strategy. The evaluation of this methodology by employing different arenediazonium tetrafluoroborates revealed that the Heck arylation was more efficient when the olefin undergoing arylation possessed the vinyl-2-pyrone
在此,我们使用 Heck 描述了从远志(即 1、4 和 7)中分离的三种生物活性吡喃酮和从 Piper methysticum 中分离出的 8 种(即 8-10、13、15 和 18-20)的全合成– 松田芳基化作为关键策略。通过使用不同的芳烃重氮四氟硼酸盐对该方法的评估表明,当进行芳基化的烯烃具有乙烯基-2-吡喃酮结构单元而不是乙烯基二氢-2-吡喃酮部分时,Heck 芳基化更有效。许多被测烯烃的 Heck-Matsuda 芳基化反应以实用的方式进行,具有完全的区域和立体控制。