[3,3]‐Sigmatropic Rearrangements of Naphthyl 1‐Propargyl Ethers:
<i>para</i>
‐Propargylation and Catalytic Asymmetric Dearomatization
作者:Lifeng Wang、Yuqiao Zhou、Zhishan Su、Fengcai Zhang、Weidi Cao、Xiaohua Liu、Xiaoming Feng
DOI:10.1002/anie.202211785
日期:2022.12.23
naphthyl 1-propargyl ethers through para-Claisen rearrangement was described, and chirality transfer was observed. Moreover, the enantioselective dearomatization of C4-substituted substrates was realized by using a chiral N,N′-dioxide/CoII complex catalyst. The DFT calculations and experimental results support the ortho-Claisen rearrangement/Cope rearrangement sequence process.
描述了 C4-未取代的萘基 1-炔丙基醚通过对位克莱森重排进行的形式热对位 -C(sp 2 )-H 炔丙基化,并观察到手性转移。此外,C4 取代底物的对映选择性脱芳构化是通过使用手性N,N'-二氧化物/Co II络合物催化剂实现的。DFT 计算和实验结果支持邻-Claisen 重排/Cope 重排序列过程。