Conjugated Microporous Polymers with Rose Bengal Dye for Highly Efficient Heterogeneous Organo-Photocatalysis

Rose Bengal dye has been successfully integrated into the skeleton of a conjugated microporous polymer via palladium-catalyzed Sonogashira–Hagihara cross-coupling polycondensation. These polymers are stable in various solvents, including concentrated hydrochloric acid, and are thermally stable. The...

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Bibliographic Details
Published in:Macromolecules 2013-11, Vol.46 (22), p.8779-8783
Main Authors: Jiang, Jia-Xing, Li, Yanyun, Wu, Xiaofeng, Xiao, Jianliang, Adams, Dave J, Cooper, Andrew I
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:Rose Bengal dye has been successfully integrated into the skeleton of a conjugated microporous polymer via palladium-catalyzed Sonogashira–Hagihara cross-coupling polycondensation. These polymers are stable in various solvents, including concentrated hydrochloric acid, and are thermally stable. The resulting polymers show substantial porosity and are highly active for heterogeneous photocatalytic aza-Henry reactions at room temperature for a wide range of substrates. Moreover, this noble-metal-free photocatalyst shows robust recycling capability with good retention of photoactivity over 10 cycles without significant loss of conversion (
ISSN:0024-9297
1520-5835
DOI:10.1021/ma402104h