New approaches to catalytic C-H and C-C bond cleavage with Ruthenium complexes

The first part of the presented work deals with the synthesis and the characterization of the complexes [(IMes)Ru(H2)2(H)2(PCy3)] (1), [(IMes)2Ru(H2)2(H)2] (2) and its nitrogen derivative [(IMes)2Ru(H2)(N2)(H)2] (3) (IMes = 1,3-dimesityl-1,3-dihydro-2H-imidazol-2-ylidene). All the ruthenium complexes have been obtained in crystalline form, thus allowing a full characterization of their structure by NMR techniques and by X-ray analysis. Complex 1 exhibits a unique reactivity pattern for intra- and inter-molecular activation of C-H bonds (H/D exchange, Murai reaction, hydrogenation of C=O and CN bonds). The second part of the work presented in the thesis focus on the olefin metathesis catalyzed by Grubbs catalyst [RuCl2(=CHPh)(PCy3)2] (4) successfully carried out in ionic liquid such as [emim][Tf2N] (1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide). The products can be isolated by extraction with common organic solvents such as pentane or with scCO2.

Grantor dc:publisher

Publikationsserver der RWTH Aachen University

Year dc:date

2004

Author dc:creator

• Giunta, Daniela

Contributors dc:contributor

• Leitner, Walter

• info:eu-repo/classification/ddc/530
• Rutheniumkomplexe
• Carbenkomplexe
• Hydridokomplexe
• Chemische Synthese
• Katalytische Aktivität
• Ringschlussmetathese
• Salzschmelze
• Physik
• Catalysis
• Ruthenium
• Carbene
• Non-classical Hydride

Statement dc:rights

• info:eu-repo/semantics/openAccess

Language dc:language

eng

Identifier

https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-121356%22

OAI identifier oai:identifier

oai:publications.rwth-aachen.de:59580