Organocatalytic Asymmetric Formal Aza-[3+3]Cyclo-additions of 3-Aminobenzofuran with α,β

Organocatalytic Asymmetric Formal Aza-[3+3]Cyclo-additions of 3-Aminobenzofuran with α,β
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有机催化不对称形式 Aza-[3 3]3-氨基苯并呋喃与 α,β 的环加成

DOI:
10.1002/adsc.201800921
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发表时间:
2018
影响因子:
5.4
通讯作者:
Deng Wei-Ping
Deng Wei-Ping
中科院分区:
化学2区
文献类型:
--
作者:
Ding Xiang-Feng;Su Ruo-Heng;Yang Wu-Lin;Deng Wei-Ping

文献摘要

被引文献

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首次报道了一种易得的N-对甲苯磺酰基-3-氨基苯并呋喃与α,β-不饱和醛的有机催化不对称形式氮杂[3+3]环加成反应。该方法使得能够以高产率容易地合成具有生物活性和合成挑战性的带有两个立体中心的多取代稠合苯并呋喃衍生物,具有优异的非对映体和对映体选择性(高达>20:1 dr,和> 99%ee)。  
An organocatalytic asymmetric formal aza‐[3+3]cycloaddition of readily availableN‐Tosyl‐3‐aminobenzofuran withα,β‐unsaturated aldehydes was developed for the first time. This method enables the facile synthesis of biologically active and synthetically challenging polysubstituted fused benzofuran derivatives bearing two stereocenters in high yields with excellent diastereo‐, and enantioselectivity (up to >20 : 1 dr, and >99% ee).