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    15.
    发明专利
    未知

    公开(公告)号：DE60002529D1

    公开(公告)日：2003-06-12

    申请号：DE60002529

    申请日：2000-02-01

    Applicant: DAICEL CHEM

    Inventor： ISHII YASUTAKA ,  NAKANO TATSUYA

    IPC: C01B15/026

    Abstract: The invented process produces hydrogen peroxide by reacting a primary or secondary alcohol with oxygen in the presence of an imide compound of the following formula (1): wherein each of R and R is, identical to or different from each other, a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cycloalkyl group, a hydroxyl group, an alkoxy group, a carboxyl group, an alkoxycarbonyl group, or an acyl group, where R and R may be combined to form a double bond, or an aromatic or non-aromatic ring; X is an oxygen atom or a hydroxyl group, where one or two N-substituted cyclic imido groups indicated in the formula (1) may be further bonded to the R , R , or to the double, bond or aromatic or non-aromatic ring formed together by R and R , to yield hydrogen peroxide. According to the process, hydrogen peroxide can be easily and efficiently obtained from readily available materials.

    16.
    发明专利
    未知

    公开(公告)号：DE69706952T2

    公开(公告)日：2002-03-28

    申请号：DE69706952

    申请日：1997-12-23

    Applicant: DAICEL CHEM

    Inventor： NAKANO TATSUYA ,  SAKAGUCHI SATOSHI ,  ISHII YASUTAKA

    IPC: C07B43/02 ,  C07C201/08 ,  C07C205/04 ,  C07C205/05 ,  C07C205/06

    Abstract: The method provides nitro compounds at a high conversion and selectivity by nitrating substrates under comparatively mild conditions in the absence of catalysts. Organic substrates are nitrated using no catalysts or ozone, but using (1) at least one nitrogen compound selected from N2O or NO and oxygen. It is advantageous for the nitration reaction to employ a nitrogen compound obtained by a reaction of the nitrogen compound with oxygen, particularly a nitrogen oxide comprising N2O3 as a main component. Additionally, organic substrates are nitrated using (2) NO2. The substrates include a compound having a methine-carbon atom, and a compound having a methyl group or methylene group in an adjacent position to an aromatic ring.

    17.
    发明专利
    未知

    公开(公告)号：DE69706952D1

    公开(公告)日：2001-10-31

    申请号：DE69706952

    申请日：1997-12-23

    Applicant: DAICEL CHEM

    Inventor： NAKANO TATSUYA ,  SAKAGUCHI SATOSHI ,  ISHII YASUTAKA

    IPC: C07B43/02 ,  C07C201/08 ,  C07C205/04 ,  C07C205/05 ,  C07C205/06

    Abstract: The method provides nitro compounds at a high conversion and selectivity by nitrating substrates under comparatively mild conditions in the absence of catalysts. Organic substrates are nitrated using no catalysts or ozone, but using (1) at least one nitrogen compound selected from N2O or NO and oxygen. It is advantageous for the nitration reaction to employ a nitrogen compound obtained by a reaction of the nitrogen compound with oxygen, particularly a nitrogen oxide comprising N2O3 as a main component. Additionally, organic substrates are nitrated using (2) NO2. The substrates include a compound having a methine-carbon atom, and a compound having a methyl group or methylene group in an adjacent position to an aromatic ring.

    18.
    发明专利
    未知

    公开(公告)号：DE60135380D1

    公开(公告)日：2008-09-25

    申请号：DE60135380

    申请日：2001-12-07

    Applicant: DAICEL CHEM

    Inventor： ISHII YASUTAKA ,  KAJIKAWA YASUTERU

    IPC: C07C51/31 ,  C07B61/00 ,  C07C55/14 ,  C07C55/21

    Abstract: A process of the present invention produces a corresponding dicarboxylic acid by oxidative cleavage of a cycloalkane with oxygen and performs a reaction in the presence of a catalyst including an imide compound and a metallic compound, the imide compound having a cyclic imide skeleton represented by following Formula (I): wherein X is an oxygen atom or an-OR group, and wherein R is a hydrogen atom or a hydroxyl-protecting group, under conditions of a reaction temperature of 80 DEG C or higher and a concentration of the cycloalkane in a system of 21% by weight or more. The imide compound includes, for example, N-hydroxyphthalimide. The amount of the imide compound is, for example, from about 0.000001 to about 0.01 mole per mole of the cycloalkane. In the production of a corresponding dicarboxylic acid by catalytic oxidation of a cycloalkane with oxygen, the present invention can yield the dicarboxylic acid in a high space time yield even using a small amount of the catalyst.

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