Iridium-Catalyzed Direct C−H Amidation Polymerization: Step-Growth Polymerization by C−N Bond Formation via C−H Activation to Give Fluorescent Polysulfonamides
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Date
2017-11-13Type
- Journal Article
ETH Bibliography
no
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Abstract
We report a powerful strategy for activation of CH bonds to produce polysulfonamides by an atom-economical and green method using iridium-catalyzed direct CH amidation polymerization (DCAP). After screening various directing groups, additives, silver salts, concentrations, and temperatures to optimize DCAP, high-molecular-weight (up to 149kDa) and defect-free polysulfonamides were synthesized from various bis-sulfonyl azides. Although these polymers do not have conventional fluorescent conjugated cores, they emit blue light with large Stokes shifts and high quantum yields upon photoexcitation owing to an excited-state intramolecular proton-transfer process. Show more
Publication status
publishedExternal links
Journal / series
Angewandte ChemieVolume
Pages / Article No.
Publisher
Wiley-VCHOrganisational unit
09767 - Choi, Tae-Lim / Choi, Tae-Lim
Related publications and datasets
Is identical to: http://hdl.handle.net/20.500.11850/537184
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ETH Bibliography
no
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