TY - JOUR
T1 - Efficient synthesis of styrene carbonate from CO2 and styrene oxide using zinc catalysts immobilized on soluble imidazolium-styrene copolymers
AU - Kyo, Kun
AU - Ono, Fumitaka
AU - Bao, Quanxi
AU - Tomida, Daisuke
AU - Yokoyama, Chiaki
PY - 2009/4/15
Y1 - 2009/4/15
N2 - 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.
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.
KW - Copolymer
KW - Cyclic carbonate
KW - Ionic liquid
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U2 - 10.1016/j.molcata.2008.12.025
DO - 10.1016/j.molcata.2008.12.025
M3 - Article
AN - SCOPUS:71549127182
VL - 303
SP - 30
EP - 34
JO - Journal of Molecular Catalysis A: Chemical
JF - Journal of Molecular Catalysis A: Chemical
SN - 1381-1169
IS - 1-2
ER -