Ce. Song et al., Immobilisation of ketone catalyst: a method to prevent ketone catalyst from decomposing during dioxirane-mediated epoxidation of alkenes, CHEM COMMUN, (24), 2000, pp. 2415-2416
Covalent attachment of trifluoromethyl ketone catalyst to a solid support s
uch as silica gel increased the stability of catalyst dramatically, so solv
ing an intrinsic problem of dioxirane-mediated epoxidation of alkenes catal
ysed by ketones.