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Free keywords:
Kaneda-epoxidation; [O-18]-oxiranes; [O-18]-5;6-
epoxycholesterol; [O-18]-epoxides of fatty acids; [O-18]-
epoxyjasmonate
Metal-catalysts; epoxidation; oxidation; aldehyde; epoxides;
olefins; absence; acid
Abstract:
High yields of isotopically pure [O-18]-epoxides are obtained from alkenes and O-18(2) gas in the presence of isobutyraldehyde (Kaneda epoxidation). Unlike peracids, the system allows the selective epoxidation of the double bond in a keto-alkene without
