Efficient synthesis of styrene carbonate from CO2 and styrene oxide using zinc catalysts immobilized on soluble imidazolium-styrene copolymers

Kun Kyo; Fumitaka Ono; Quanxi Bao; Daisuke Tomida; Chiaki Yokoyama

doi:10.1016/j.molcata.2008.12.025

Efficient synthesis of styrene carbonate from CO₂ and styrene oxide using zinc catalysts immobilized on soluble imidazolium-styrene copolymers

Kun Kyo, Fumitaka Ono, Quanxi Bao, Daisuke Tomida, Chiaki Yokoyama

Division of Inorganic Material Research

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

Preparation of zinc catalysts (Zn/PS-IL[X], X=Br^-, Cl ^-, BF₄ ^-, and PF₆ ^-) supported on imidazolium-styrene copolymers, as well as their catalytic use for the solvent-free synthesis of styrene carbonate from CO₂ and styrene oxide, are described. Among the catalysts examined, Zn/PS-IL[Br] was proved to be the most efficient. When used in a homogeneous system during the reaction process, Zn/PS-IL[Br] gave a 97.5% yield of product with a TOF value that can be up to about 3800 h^-1. Due to its immiscibility with ethanol, Zn/PS-IL[Br] can be separated like a heterogeneous catalyst through solvent precipitation, and reused at least three times for the reaction without significant loss of activity.

Original language	English
Pages (from-to)	30-34
Number of pages	5
Journal	Journal of Molecular Catalysis A: Chemical
Volume	303
Issue number	1-2
DOIs	https://doi.org/10.1016/j.molcata.2008.12.025
Publication status	Published - 2009 Apr 15

Keywords

Copolymer
Cyclic carbonate
Ionic liquid

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology
Physical and Theoretical Chemistry

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Efficient synthesis of styrene carbonate from CO₂ and styrene oxide using zinc catalysts immobilized on soluble imidazolium-styrene copolymers. / Kyo, Kun; Ono, Fumitaka; Bao, Quanxi; Tomida, Daisuke; Yokoyama, Chiaki.

In: Journal of Molecular Catalysis A: Chemical, Vol. 303, No. 1-2, 15.04.2009, p. 30-34.

Research output: Contribution to journal › Article › peer-review

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AU - Tomida, Daisuke

AU - Yokoyama, Chiaki

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AB - Preparation of zinc catalysts (Zn/PS-IL[X], X=Br-, Cl -, BF4 -, and PF6 -) supported on imidazolium-styrene copolymers, as well as their catalytic use for the solvent-free synthesis of styrene carbonate from CO2 and styrene oxide, are described. Among the catalysts examined, Zn/PS-IL[Br] was proved to be the most efficient. When used in a homogeneous system during the reaction process, Zn/PS-IL[Br] gave a 97.5% yield of product with a TOF value that can be up to about 3800 h-1. Due to its immiscibility with ethanol, Zn/PS-IL[Br] can be separated like a heterogeneous catalyst through solvent precipitation, and reused at least three times for the reaction without significant loss of activity.

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