Lewis acid catalysis in supercritical carbon dioxide. Use of scandium tris(heptadecafluorooctanesulfonate) as a Lewis acid catalyst in Diels-Alder and aza Diels-Alder reactions
J. Matsuo et al., Lewis acid catalysis in supercritical carbon dioxide. Use of scandium tris(heptadecafluorooctanesulfonate) as a Lewis acid catalyst in Diels-Alder and aza Diels-Alder reactions, CHEM LETT, (2), 2000, pp. 178-179
Diels-Alder reactions of carbonyl dienophiles with dienes and aza Diels-Ald
er reactions of imines with a diene have been successfully carried out usin
g scandium tris(heptadecafluorooctanesulfonate) (Sc(OSO2C8F17)(3)) as a Lew
is acid catalyst in supercritical carbon dioxide (scCO(2)). It was revealed
that the length of perfluorocarbon chains of the scandium catalyst was an
essential factor for the catalytic activity in scCO(2).