Olefin metathesis in carbohydrate chemistry

The allylic chalcogen effect in olefin metathesis

Keywords: dendrimers , glycodendrimers , olefin metathesis , alkoxyamino-carbonyl chemistry. If you have an individual subscription to this journal, or if you have purchased this article through Pay-Per-view , you can gain access by logging in with your username and password here:.

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Ruthenium Olefin Metathesis Catalysts Bearing Carbohydrate-Based N-Heterocyclic Carbenes

Sorry, you do not have access to this content. You have requested the following content: Canadian Journal of Chemistry, , Vol. Convergent dendrimer synthesis by olefin metathesis and studies toward glycoconjugation. Abstract The synthesis of novel hyperbranched monodisperse linear dendrimers, based on 2,2-bis- hydroxymethyl -propionic acid bis-MPA , has been achieved by convergent metathesis-mediated coupling between the alkene-terminated focal point of bis-MPA dendrons. Cited by View all 1 citing articles. Online access to the content you have requested requires one of the following:.

Here we report catalytic Z -selective cross-metathesis reactions of terminal enol ethers, which have not been reported previously, and of allylic amides, used until now only in E -selective processes. These transformations, promoted by catalysts that contain the highly abundant and inexpensive metal molybdenum, are amenable to gram-scale operations. Use of reduced pressure is introduced as a simple and effective strategy for achieving high stereoselectivity.

Negishi, E. Recent advances in efficient and selective synthesis of di-, tri, and tetrasubstituted alkenes via Pd-catalyzed alkenylation—carbonyl olefination strategy. Chatterjee, A. Grubbs, R. Crowe, W. Acrylonitrile cross-metathesis: coaxing olefin metathesis reactivity from a reluctant substrate. Hansen, E. Efficient and Z -selective cross-metathesis of conjugated enynes. Malcolmson, S. Highly efficient molybdenum-based catalysts for alkene metathesis.

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Nature , — Lee, Y. Endo-selective enyne ring-closing metathesis promoted by stereogenic-at-Mo monoalkoxide and monoaryloxide complexes. Efficient synthesis of cyclic dienes not accessible through reactions with Ru carbenes.

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Abstract: This account is devoted to a discussion of synthetic applications of olefin metathesis in carbohydrate chemistry. Olefin metathesis has emerged as a . First published on UnassignedUnassigned1st March The potential use of olefin metathesis reactions in carbohydrate chemistry is discussed. In recent.

Solans-Monfort, X. Meek, S.

The significance of degenerate processes to enantioselective olefin metathesis reactions promoted by stereogenic-at-Mo complexes. Alexander, J.

Catalytic enantioselective ring-closing metathesis by a chiral biphen—Mo complex. Schrock, R.


Molybdenum and tungsten imido alkylidene complexes as efficient olefin- metathesis catalysts. Edn 42 , — Garber, S. Efficient and recyclable monomeric and dendritic Ru-based metathesis catalysts. Ibrahem, I. Jiang, A. Highly Z -selective metathesis homocoupling of terminal olefins. Schrader, T.

La, D. Mechanism and application to enantioselective synthesis of functionalized cyclopentanes. Nagan, N. Plasmalogens: biosynthesis and functions.

Lipid Res. Lankalapalli, R. Synthesis and antioxidant properties of an unnatural plasmalogen analogue bearing a trans O -vinyl ether linkage. Vicinal diboronates in high enantiomeric purity through tandem site-selective NHC—Cu-catalyzed boron—copper additions to terminal alkynes. Qin, D. Borg, N. Nature , 44—49 Trappeniers, M. ChemMedChem 3 , — Llaveria, J.

An efficient and general enantioselective synthesis of sphingosine, phytosphingosine, and 4-substituted derivatives. Kim, S.

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Practical synthesis of KRN from phytosphingosine. Synthesis — Michieletti, M. Nicolaou, K. The Wittig and related reactions in natural product synthesis. Justus Liebigs Ann. Miyaura, N. Palladium-catalyzed cross-coupling reactions of organoboron compounds. Hoveyda, A.