Enantioselective Construction of C4-Quaternary Quinolinones via Copper(II)-Catalyzed Asymmetric [1,3] O-to-C Rearrangement
作者:Zongli Xiong、Fuxing Xu、Yuqiao Zhou、Rong Zhang、Yulong Zhang、Yushuang Chen、Weijun Yao、Zhen Wang
DOI:10.1021/acs.orglett.3c03378
日期:2023.11.24
An efficient asymmetric [1,3] O-to-C rearrangement of quinolin-2(1H)-ones enabled by a chiral bisoxazoline/copper complex has been developed. This strategy tolerated a wide range of substrates to provide a series of 1,4-dihydroquinoline-2,3-diones containing a quaternary stereocenter. A further cyclization of the [1,3] O-to-C rearrangement products was also realized, which led to various optically
已经开发出一种由手性双恶唑啉/铜络合物实现的喹啉-2(1 H )-酮的有效不对称[1,3] O-to-C重排。该策略耐受多种底物,提供一系列含有四元立体中心的 1,4-二氢喹啉-2,3-二酮。还实现了[1,3] O-to-C重排产物的进一步环化,从而产生了各种具有广泛底物范围的光学活性3,4-二氢喹啉-2-酮。