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    • 49. 发明专利
    • PRODUCTION OF CYCLOALKENE OXIDE
    • JPH11349580A
    • 1999-12-21
    • JP15652798
    • 1998-06-05
    • UBE INDUSTRIES
    • KURODA NOBUYUKIYAMANAKA MITSUONAKAMURA TAKAHITO
    • C07D301/19C07D303/04
    • PROBLEM TO BE SOLVED: To obtain a cycloalkene oxide useful as an intermediate raw material for synthetic fibers, etc., in high selectivity by adding a specific phosphate to a cycloalkene and an oxidized liquid of a cycloalkane in the presence of a specific catalyst and bringing the cycloalkene into contact with the oxidized liquid of cycloalkane. SOLUTION: A cycloalkane (preferably 5-16C cycloalkane) is oxidized to afford (A) an oxidized liquid of cycloalkane containing a cycloalkane hydroperoxide. Then, a phosphate of the formula (X is H or a 3-12C alkyl; R is a 3-12C alkyl) is added to (B) a cycloalkene (preferably 5-16C cycloalkene) and the component A in the presence of a soluble molybdenum catalyst and the component B is brought into contact with the component A. Thereby, epoxidation of the cycloalkene is carried out to provide the objective cycloalkene oxide in high selectivity. In the component A, a cycloalkyl hydroperoxide content is preferably 0.20-0.80 mmol based on 1 g component A. This producing method is industrially suitable.