Planar chirale Metallocene

The element of planar chirality turned out to be of special importance to achieve high enantioselectivities in various asymmetric processes. In the course of this PhD thesis, the sulfoximine unit was established as a new chiral ortho-directing group for ferrocenes. By variation of the metal fragment and other structural properties of a published chiral ligand, a cyclopentadienylrhenium(I)tricarbonyl complex was identified as more selective than the original ferrocene system in the asymmetric phenyl transfer to aldehydes using zinc reagents. Also basing on the ferrocene scaffold, the first planar chiral, free, N-heterocyclic carbene was synthesized. Characterization was possible both in solution via NMR spectroscopy as well as ligand attached to different metal centers.

Grantor dc:publisher

Publikationsserver der RWTH Aachen University

Year dc:date

2001

Author dc:creator

• Kesselgruber, Martin

Contributors dc:contributor

• Bolm, Carsten

• info:eu-repo/classification/ddc/540
• Chemie

Statement dc:rights

• info:eu-repo/semantics/openAccess

Language dc:language

ger

Identifier

https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-118724%22

OAI record oai:identifier

https://publications.rwth-aachen.de/oai2d?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Apublications.rwth-aachen.de%3A56635