Study of the origin of enantioselectivity in cyclopropanation reactions using the chiral iron carbene complex [(η5-C5H5)(CO)2FeCH[(η6-o-MeOC6H4)Cr(CO)3]]+

Qinwei Wang,F. Holger Försterling,M. Mahmun Hossain

Journal of Organometallic Chemistry（2005）

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摘要

The iron carbene complexes [(η5-C5H5)(CO)2FeCH[(η6-RC6H4)Cr(CO)3]]+ (R=OMe, Me) exists as syn and anti isomers. The anti isomer is more reactive towards olefins and forms asymmetric cyclopropanes through backside ringclosure in high enantioselectivity.

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关键词

Chiral iron carbene,Asymmetric cyclopropantion,Enantioselectivity,syn/anti Isomers,Backside and frontside ring closure

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