| 摘要 |
PROBLEM TO BE SOLVED: To control the ring opening of an epoxy ring without reducing a main reaction and to prevent the clogging of a catalyst channel caused by a by-product by using a specific cocatalyst in the epoxidation reaction of an olefin by a titanium atom-containing zeolite catalyst. SOLUTION: This selective epoxidation of an olefin comprises using a univalent thallium compound in reacting a 3-9C aliphatic olefin of the formula (R<1> to R<3> are each H or a 1-2C alkyl) with hydrogen peroxide or a compound to form hydrogen peroxide in the presence of a titanosilicate catalyst. A compound selected from thallium halide, thallium sulfate, thallium nitrate, thallium phosphate, thallium carbonate, thallium carboxylate and thallium hydroxide is used as the univalent thallium compound. Preferably a reaction phase is a liquid phase in the epoxidation and a solvent is water. |
