Enantioselective [4 + 2] Cycloaddition Reaction of Vinylquinolines with Dienals Enabled by Synergistic Organocatalysis
作者:Jing Chen、Yiwei Fu、Yang Yu、Jian-Rong Wang、Yue-Wei Guo、Hao Li、Wei Wang
DOI:10.1021/acs.orglett.0c02137
日期:2020.8.7
An unprecedented organocatalytic enantioselective [4 + 2] cycloadditionreaction of vinyl quinolines with dienals is achieved with the synergistic activation of CH3SO3H and a chiral aminocatalyst. The power of the process is demonstrated by its high efficiency of the production of new synthetically and biologically valued chiral quinoline architectures in high yields and with excellent enantioselectivities
通过CH 3 SO 3 H和手性氨基催化剂的协同活化,实现了乙烯基喹啉与二烯类化合物的前所未有的有机催化对映选择性[4 + 2]环加成反应。该方法的强大能力以其高效率,高收率和优异的对映选择性生产了具有合成和生物学价值的新型手性喹啉结构而得到证明。
US3936429A
申请人:——
公开号:US3936429A
公开(公告)日:1976-02-03
Enantioselective [3 + 2] Cycloaddition of Vinylcyclopropanes with Alkenyl <i>N</i>-Heteroarenes Enabled by Palladium Catalysis
作者:Wen-Dao Chu、Ya-Ting Wang、Tian-Tian Liang、Teng Long、Jia-Yu Zuo、Zhihui Shao、Bo Chen、Cheng-Yu He、Quan-Zhong Liu
DOI:10.1021/acs.orglett.2c01326
日期:2022.6.10
The first catalytic enantioselective [3 + 2] cycloaddition reaction between vinylcyclopropanes and alkenyl N-heteroarenes in the presence of LiBr and a Pd(0)/SEGPHOS complex was developed. LiBr plays a key role in improving the reactivity of alkenyl N-heteroarenes as a mild Lewis acid.