Synthesis of proposed structure of rennellianone B: A study on rearrangement of anthraquinonyl propargyl ether toward 2H-pyranoanthraquinone
作者:Young Taek Han
DOI:10.1016/j.tetlet.2016.12.080
日期:2017.2
Korth. An efficient synthesis of the proposed structure of rennellianone B was accomplished, starting from alizarin. The key feature of the synthesis involves the Claisen rearrangement of the anthraquinonyl propargyl ether intermediate to provide a 2H-pyranoanthraquinone moiety. In addition, intensive studies on rearrangement reaction conditions of anthraquinonyl propargyl ether toward the 2H-pyranoanthraquinone
Rennellianone B最初被报道为天然2 H-吡喃蒽醌,从Rennellia elliptica Korth的根中分离出来。从茜素开始,有效合成了肾上腺素B的拟议结构。该合成的关键特征涉及蒽醌基炔丙基醚中间体的克莱森重排,以提供2 H-吡喃蒽蒽醌部分。另外,描述了蒽醌炔丙基醚向2 H-吡喃蒽蒽醌骨架的重排反应条件的深入研究。