作者:Hyeju Jo、Minho Choi、Mayavan Viji、Young Lee、Young-Shin Kwak、Kiho Lee、Nam Choi、Yeon-Ju Lee、Heesoon Lee、Jin Hong、Mi Lee、Jae-Kyung Jung
DOI:10.3390/molecules200915966
日期:——
A concise and expeditious approach to the total synthesis of broussonone A, a p-quinol natural compound, has been developed. The key features of the synthesis include the Grubbs II catalyst mediated cross metathesis of two aromatic subunits, and a chemoselective oxidative dearomatizationin the presence of two phenol moieties. Especially, optimization associated with the CM reaction of ortho-alkoxystyrenes was also studied, which are known to be ineffective for Ru-catalyzed metathesis reactions under conventional reaction conditions because ortho-alkoxy group could coordinate to the ruthenium center, resulting in the potential complication of catalyst inhibition.
我们开发出了一种简便快捷的方法,用于全合成对醌类天然化合物布鲁索酮 A。该合成的主要特点包括 Grubbs II 催化剂介导的两个芳香族亚基的交叉偏析,以及在两个苯酚分子存在下的化学选择性氧化脱芳烃反应。特别是还研究了与正交烷氧基苯乙烯的 CM 反应相关的优化问题,众所周知,在传统反应条件下,正交烷氧基苯乙烯对 Ru 催化的复分解反应无效,因为正交烷氧基可能会配位到钌中心,从而导致催化剂抑制的潜在并发症。