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  Ruthenium Carbene Complexes with Imidazol-2-ylidene Ligands: Syntheses of Conduritol Derivatives Reveals Superior RCM Activity

Ackermann, L., El Tom, D., & Fürstner, A. (2000). Ruthenium Carbene Complexes with Imidazol-2-ylidene Ligands: Syntheses of Conduritol Derivatives Reveals Superior RCM Activity. Tetrahedron, 56(15), 2195-2202. doi:10.1016/S0040-4020(99)01102-3.

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 Creators:
Ackermann, Lutz1, Author           
El Tom, David1, Author           
Fürstner, Alois1, Author           
Affiliations:
1Research Department Fürstner, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445584              

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Free keywords: ruthenium carbene complex; olefination; metathesis
 Abstract: Syntheses of conduritol A, E and F derivatives are described using galactitol, d-mannitol and d-glucitol, respectively, as the starting materials. The key steps of this approach comprise a Tebbe olefination reaction for the preparation of dienes 15, 21 and 27 followed by ring closing metathesis (RCM) for the formation of the polyhydroxylated cyclohexene rings of the targets. A comparative study shows that the latter transformation is best achieved with catalytic amounts of ruthenium carbene complex 3a bearing one PCy3 and one 2,3-dihydro-1H-imidazol-2-ylidene ligand in its coordination sphere.

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Language(s): eng - English
 Dates: 1999-12-072000-04-042000-04-07
 Publication Status: Issued
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/S0040-4020(99)01102-3
 Degree: -

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Title: Tetrahedron
  Other : Tetrahedron
Source Genre: Journal
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Publ. Info: Oxford : Pergamon
Pages: - Volume / Issue: 56 (15) Sequence Number: - Start / End Page: 2195 - 2202 Identifier: ISSN: 0040-4020
CoNE: https://pure.mpg.de/cone/journals/resource/954925448773