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Synfacts 2014; 10(6): 0649
DOI: 10.1055/s-0033-1339093
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart · New York

Adhesive Immobilization of Polymer-Stabilized Pd Nanoparticles on Cellulose

Contributor(s):
Yasuhiro Uozumi
,
Yoichi M. A. Yamada
,
Takuma Sato
Nishikata T, Tsutsumi H, Gao L, Kojima K, Chikama K, Nagashima H * Kyushu University, Kasuga and Nissan Chemical Industries, Funabashi, Japan
Adhesive Catalyst Immobilization of Palladium Nanoparticles on Cotton and Filter Paper: Applications to Reusable Catalysts for Sequential Catalytic Reactions.

Adv. Synth. Catal. 2014;
356: 951-960
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Publication History

Publication Date:
16 May 2014 (online)

 
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Key words

solid-supported catalysis - cellulose - hyperbranched polymers - ammonium salts - palladium

Significance

Adhesive immobilization of palla­dium nanoparticles on cellulose using hyperbranched polystyrene [Pd@HPS-N(C12H25)3Cl on cellulose] was developed. The catalyst promoted efficiently the Suzuki–Miyaura coupling, the Mizoroki–Heck reaction, the intramolecular C–H bond arylation, and the hydrogenation. The catalyst was recycled by a tweezers and reused several times.


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Comment

The catalyst was prepared as follows: A reaction of the hyperbranched polystyrenes having tri(dodecyl)ammonium chloride moieties [HPS-N(C12H25)3Cl] with Pd2(dba)3 was carried out to give the polymer-supported palladium nanoparticles Pd@HPS-N(C12H25)3Cl. The resulting nanocomposite Pd@HPS-N(C12H25)3Cl was treated with KI and filter paper (or cotton) as cellulose to afford Pd@HPS-N(C12H25)3Cl on cellulose.


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