作者:Jiantao Zhang、Zhehui Liao、Lianfen Chen、Huanfeng Jiang、Shifa Zhu
DOI:10.1002/chem.201801062
日期:2018.5.11
A catalytic [1,3] O‐to‐C rearrangement from enyne‐ethers was developed for the rapid synthesis of diverse bridged bicyclic systems. In this reaction, a vinyl oxonium intermediate, generated in situ from enyne‐ether, was the precursor for the [1,3] O‐to‐C rearrangement. This versatile protocol represents the first example of catalytic [1,3] O‐to‐C rearrangement based on ring‐expansion strategy, enabling
为快速合成各种桥联双环系统,开发了由炔醚进行的催化[1,3] O-to-C重排。在该反应中,由乙炔醚原位生成的乙烯基氧鎓中间体是[1,3] O-to-C重排的前体。这种通用的协议代表了基于环扩展策略的催化[1,3] O-to-C重排的第一个示例,可有效访问桥接的双环支架。