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- W2113177725 endingPage "460" @default.
- W2113177725 startingPage "449" @default.
- W2113177725 abstract "Immobilized catalysts have been reinvestigated from two aspects; as keys to environmentally benign chemical processes and high-throughput organic synthesis for combinatorial chemistry. While most known polymer-supported catalysts are less active than the corresponding original catalysts, new types of polymer-supported catalysts, microencapsulated catalysts, have been developed. The catalysts were immobilized on to polymers using physical envelopment by polymer backbones and interaction between pi electrons of benzene rings of the polystyrenes used as polymer backbones and vacant orbitals of the catalysts. Microencapsulated Sc, Os, Pd and Ru catalysts have been successfully prepared and high activities have been attained. In all cases, no leaching of the catalysts occurred, and the immobilized catalysts were recovered quantitatively by simple filtration and reused without loss of activity. It is noted that this method enables direct immobilization of metals onto polymers, and that normally unstable species such as Pd(0)(PPh3) can be kept stable by this immobilization technique. It is expected that other metal catalysts can be immobilized using this microencapsulation technique." @default.
- W2113177725 created "2016-06-24" @default.
- W2113177725 creator A5011610207 @default.
- W2113177725 creator A5049553063 @default.
- W2113177725 date "2002-12-12" @default.
- W2113177725 modified "2023-10-16" @default.
- W2113177725 title "Renaissance of immobilized catalysts. New types of polymer-supported catalysts, ‘microencapsulated catalysts’, which enable environmentally benign and powerful high-throughput organic synthesis" @default.
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- W2113177725 doi "https://doi.org/10.1039/b207445a" @default.
- W2113177725 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/12638949" @default.
- W2113177725 hasPublicationYear "2002" @default.
- W2113177725 type Work @default.