ASYMMETRIC CYCLOPROPANATION OF ELECTRON-DEFICIENT OLEFINS WITH DIAZO REAGENTS
申请人:Zhang X. Peter
公开号:US20100076239A1
公开(公告)日:2010-03-25
Cobalt-catalyzed asymmetric cyclopropanation of electron-deficient olefins.
钴催化的电子不足烯烃不对称环丙烷化。
Cobalt-Catalyzed Asymmetric Cyclopropanation of Alkenes with alpha-Nitrodiazoacetates
申请人:Zhang X. Peter
公开号:US20100081838A1
公开(公告)日:2010-04-01
A process for the cyclopropanation of olefins with a metal porphyrin catalyst and an acceptor/acceptor substituted diazo reagent.
一种使用金属卟啉催化剂和受体/受体取代的重氮试剂进行烯烃环丙烷化的过程。
US8110699B2
申请人:——
公开号:US8110699B2
公开(公告)日:2012-02-07
[3+2] Redox-Neutral Cycloaddition of Nitrocyclopropanes with Styrenes by Visible-Light Photocatalysis
作者:Chengfeng Wang、Xiang Ren、Hujun Xie、Zhan Lu
DOI:10.1002/chem.201500873
日期:2015.6.26
The first nitro‐group‐initiated redox‐neutral [3+2] cycloaddition of nitrocyclopropanes with alkenes by using visible‐light‐absorbing transition‐metal complexes was reported. High diastereoselectivities were observed for two quaternary carbon centers on the ring and validated by DFT calculations. Spiro‐ or polycyclic structures can be constructed smoothly. Cyclic γ‐amino acid derivatives and polysubstituted