Compounds containing oxazolidinone moiety and uses thereof
申请人:——
公开号:US20040039209A1
公开(公告)日:2004-02-26
A compound and method for producing an enantiomerically enriched epoxide from an olefin using a chiral ketone and an oxidizing agent is disclosed. In particular, the compound is of the formula: I wherein R
1
, R
2
, R
3
and R
4
are those defined herein.
Designing New Chiral Ketone Catalysts. Asymmetric Epoxidation of <i>cis</i>-Olefins and Terminal Olefins
作者:Hongqi Tian、Xuegong She、Hongwu Yu、Lianhe Shu、Yian Shi
DOI:10.1021/jo010838k
日期:2002.4.1
class of chiral oxazolidinone ketone catalyst for asymmetric epoxidation. High ee values have been obtained for a number of cyclic and acyclic cis-olefins. The epoxidation was stereospecific with no isomerization observed in the epoxidation of acyclic systems. Encouragingly high ee values have also been obtained for a number of terminalolefins. Mechanistic studies show that electronic interactions play
Asymmetric epoxidation of cis-β-methylstyrenes catalyzed by N-aryl substituted oxazolidinone-containing ketones. A beneficial substituent effect
作者:Lianhe Shu、Yian Shi
DOI:10.1016/j.tetlet.2004.08.124
日期:2004.10
Asymmetric epoxidation of substituted cis-β-methylstyrenes using N-aryl substituted oxazolidinone-containing ketones as catalysts shows that substituents on the phenyl group of the olefin have significant positive effects on the enantioselectivity of the epoxidation, indicating a beneficial interaction between the phenyl group of the olefin and the phenyl group of the ketone catalyst.