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2004
Dioxole derivatives
R 0170
Chemical Fixation of Carbon Dioxide Co-Catalyzed by a Combination of Schiff
or Phenols and Organic Bases. — Full details of a previously published meth44- 128 Bases
od to obtain cyclic carbonates (III) by reaction of epoxides with carbon dioxide in the
presence of a phenol/DMAP catalyst system are reported. In addition, it is found that
in the presence of the catalyst system Schiff base SBA and DMAP also excellent yields
of products (III) are formed. The latter reaction conditions are successfully applied to
the reaction of aziridine (VI) with CO2, and epoxide (Ia) with CS2, whereas thiirane and
CO2 give a complex mixture of products. — (SHEN, Y.-M.; DUAN, W.-L.; SHI*, M.;
Eur. J. Org. Chem. 2004, 14, 3080-3089; State Key Lab. Organomet. Chem., Shanghai
Inst. Org. Chem., Chin. Acad. Sci., Shanghai 200032, Peop. Rep. China; Eng.) —
Klein
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