| abstract |
PROBLEM TO BE SOLVED: To provide a water-reactive solvent or a low-toxic organic solvent which is environmentally friendly as a reaction solvent, to recover and reuse a catalyst used in the reaction, and to selectively produce only an epoxide. To provide. SOLUTION: (1) Replacement with (a) activated carbon or an inorganic solid having a functional group capable of reacting with a silane coupling agent, and (b) a functional group capable of forming a quaternary ammonium salt by reacting with a tertiary amine. Reacting with a silane coupling agent having an alkyl group, and then reacting with a tertiary amine or a cyclic amine to form a carrier, and (2) a group V atom and a tungsten atom in the periodic table in the molecule. An epoxidation catalyst comprising a salt obtained by reaction with a heteropolyacid having A method for producing an epoxidized olefin by reacting an olefin with hydrogen peroxide in the presence of the epoxidation catalyst in water or an organic solvent. |