Process for the production of dimethyldecanedioic acid
    1.
    发明公开
    Process for the production of dimethyldecanedioic acid 失效
    Verfahren zur Herstellung vonDimethyldecandisäure

    公开(公告)号:EP0924183A1

    公开(公告)日:1999-06-23

    申请号:EP98121161.8

    申请日:1995-11-15

    申请人: KURARAY CO., LTD.

    摘要: The present invention provides a process for producing a dimethyldecanedioic acid represented by the general formula (II)

            HOOC-CH 2 -CH(CH 3 )-CH 2 -CH 2 -CH 2 -CH(A)-CH(B)-CH 2 -COOH     (II)

    wherein either of A and B represents a methyl group and the rest represents a hydrogen atom, which comprises oxidizing a dimethyldecanedial represented by the general formula (I)

            OHC-CH 2 -CH(CH 3 )-CH 2 -CH 2 -CH 2 -CH(A)-CH(B)-CH 2 -CHO     (I)

    wherein either of A and B represents a methyl group and the rest represents a hydrogen atom.
    The present invention provides a dimethyldecanedial represented by the general formula (I).
    Furthermore, the present invention provides a process for producing a dimethyldecanedial represented by the general formula (I), comprising hydroformylating a diolefin represented by the general formula (III)

            CH 2 =C(CH 3 )-CH 2 -CH 2 -CH 2 -CH(A)-CH(B)=CH 2      (III)

    wherein either of A and B represents a methyl group and the
    The dimethyldecanedial of the present invention is useful as a raw material of production of the dimethyldecanedioic acid represented by the general formula (II). Furthermore, the polyester diol containing the dimethyldecanedioic acid as a dicarboxylic acid component, shows excellent resistance to hydrolysis and is useful as a raw material for producing high-performance polyurethanes.

    摘要翻译: 本发明提供由通式(II)HOOC-CH 2 -CH(CH 3)-CH 2 -CH 2 -CH 2 -CH(A)-CH(B)-CH 2 -COOH表示的二甲基癸二酸的制备方法,其中 A和B表示甲基,其余表示氢原子,其包括氧化由通式(I)表示的二甲基癸二醛OHC-CH 2 -CH(CH 3)-CH 2 -CH 2 -CH 2 -CH(A)-CH( B)-CH2-CHO,其中A和B中的任一个表示甲基,其余表示氢原子。 本发明提供由通式(I)表示的二甲基癸二醛。 此外,本发明提供由通式(I)表示的二甲基癸二醛的制造方法,其特征在于,将由通式(III)表示的二烯烃加成甲酰化CH2 = C(CH3)-CH2-CH2-CH2-CH(A) -CH(B)= CH 2,其中A和B中的任一个表示甲基,本发明的二甲基癸二醛可用作制备由通式(II)表示的二甲基癸二酸的原料。 此外,含有作为二羧酸成分的二甲基癸二酸的聚酯二醇具有优异的耐水解性,可用作制造高性能聚氨酯的原料。