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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 27, Number 8
BKCSDE 27(8)
August 20, 2006 

Coupling Reaction of CO2 with Epoxides by Binary Catalytic System of Lewis Acids and Onium Salts
Taekki Bok, Eun Kyung Noh, Bun Yeoul Lee*
Cyclic carbonate, Carbon dioxide, Epoxide, Coupling reaction
Various off-the-shelf Lewis acids in conjunction with various onium salts are screened for coupling reaction of CO2 with epoxides. Among the tested ones, VCl3/n-Bu4NOAc, VCl3/(n-Bu4NCl or PPNCl), FeCl3/n-Bu4NOAc, and AlCl3/n-Bu4NOAc are proved to be highly active. Propylene oxide, epichlorohydrin, styrene oxide, and cyclohexene oxide can be converted over 90% yields to the corresponding cyclic carbonates without the use of organic solvents under mild conditions by 0.1-1.0 mol% catalyst charge.
1171 - 1174
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