Intramolecularly two-centered cooperation catalysis for the synthesis of cyclic carbonates from CO2 and epoxides
2008 (English)In: Tetrahedron Letters, ISSN 0040-4039, E-ISSN 1873-3581, Vol. 49, no 46, 6589-6592 p.Article in journal (Refereed) Published
A catalyst systern containing an electrophilic center and a sterically hindered nUcleophilic center in one molecule was applied to the cycloaddition reaction of CO2 and epoxides. This intramolecularly two-centered cooperation catalyst showed activity even at a high [epoxide]/[catalyst] ratio up to 50000 under mild conditions such as solvent-free, ambient temperature, and low CO2 pressure. The reaction of CO2 with (S)-propylene oxide at 80 degrees C in the presence of the bifunctional catalyst gives (S)-propylene carbonate in 96% ee with retention of stereochemistry.
Place, publisher, year, edition, pages
2008. Vol. 49, no 46, 6589-6592 p.
IdentifiersURN: urn:nbn:se:kth:diva-17945DOI: 10.1016/j.tetlet.2008.09.035ISI: 000260645900029ScopusID: 2-s2.0-52949147758OAI: oai:DiVA.org:kth-17945DiVA: diva2:335990
QC 201005252010-08-052010-08-05Bibliographically approved