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Strain-promoted cycloadditions involving nitrones and alkynes--rapid tunable reactions for bioorthogonal labeling. 2014

Douglas A MacKenzie, and Allison R Sherratt, and Mariya Chigrinova, and Lawrence L W Cheung, and John Paul Pezacki
Life Sciences Division, National Research Council of Canada, Ottawa, Ontario, Canada; Department of Chemistry, University of Ottawa, Ottawa, Canada.

The development and applications of strain-promoted alkyne-nitrone cycloaddition (SPANC) reactions have brought about new tools for rapid and specific functionalization of biomolecules in different settings. While a number of strain-promoted reactions have been successfully developed, SPANC reactions offer high reactivity with bimolecular rate constants of k2 that are as fast as 60M(-1)s(-1). SPANC reactions also offer stability of starting materials, particularly in the case of endocyclic nitrones, as well as stereoelectronic tunability of the nitrone moiety to optimize reactivity towards different alkyne reaction partners. Herein we discuss recent advances in the development of SPANC reactions and their applications in bioorthogonal labeling.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D009589 Nitrogen Oxides Inorganic oxides that contain nitrogen. Nitrogen Oxide,Oxide, Nitrogen,Oxides, Nitrogen
D000480 Alkynes Hydrocarbons with at least one triple bond in the linear portion, of the general formula Cn-H2n-2. Acetylenic Compounds,Alkyne,Acetylenes
D013194 Staining and Labeling The marking of biological material with a dye or other reagent for the purpose of identifying and quantitating components of tissues, cells or their extracts. Histological Labeling,Staining,Histological Labelings,Labeling and Staining,Labeling, Histological,Labelings, Histological,Stainings
D061565 Cycloaddition Reaction Synthetic organic reactions that use reactions between unsaturated molecules to form cyclical products. Cycloaddition,Cycloaddition Reaction Techniques,Diels-Alder Reaction,Cycloaddition Reaction Technique,Cycloaddition Reactions,Diels Alder Reaction,Reaction Technique, Cycloaddition,Reaction Techniques, Cycloaddition,Reaction, Cycloaddition,Reaction, Diels-Alder,Reactions, Cycloaddition,Technique, Cycloaddition Reaction,Techniques, Cycloaddition Reaction

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