Preparation of epoxides by means of aromatic peroxycarboxylic acids
    4.
    发明授权
    Preparation of epoxides by means of aromatic peroxycarboxylic acids 失效
    通过芳族过氧羧酸制备环氧化物

    公开(公告)号:US5808114A

    公开(公告)日:1998-09-15

    申请号:US875607

    申请日:1997-08-05

    摘要: Preparation of epoxides from olefins by means of aromatic peroxycarboxylic acids comprises a step A of epoxidizing the olefin and removing the resulting aromatic carboxylic acid from the epoxide, a step B of catalytically hydrogenating the removed aromatic carboxylic acid to the corresponding aromatic aldehyde, and a step C of oxidizing this aldehyde with oxygen or an oxygen-containing gas mixture back to the aromatic peroxycarboxylic acid for re-use for epoxidizing an olefin.

    摘要翻译: PCT No.PCT / EP96 / 00578 Sec。 371日期:1997年8月5日 102(e)日期1997年8月5日PCT提交1996年2月10日PCT公布。 公开号WO96 / 26198 日期1996年8月29日通过芳族过氧羧酸从烯烃制备环氧化物包括使烯烃环氧化并从环氧化物中除去所得芳族羧酸的步骤A,将除去的芳族羧酸催化氢化成相应芳族化合物的步骤B 醛,以及用氧或含氧气体混合物将该醛氧化成芳族过氧羧酸的步骤C,以重新用于烯烃的环氧化。

    Preparation of amine oxides
    10.
    发明授权
    Preparation of amine oxides 失效
    氧化胺的制备

    公开(公告)号:US5639880A

    公开(公告)日:1997-06-17

    申请号:US656412

    申请日:1996-05-30

    CPC分类号: C07D295/24 C07C291/04

    摘要: A process for preparing amine oxides of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.30 -alkyl, C.sub.3 -C.sub.12 -cycloalkyl, C.sub.1 -C.sub.30 -hydroxyalkyl, C.sub.1 -C.sub.30 -aminoalkyl, C.sub.2 -C.sub.30 -alkoxyalkyl, aryl, C.sub.7 -C.sub.20 -aralkyl, C.sub.7 -C.sub.20 -alkylaryl, C.sub.1 -C.sub.8 -alkyl-, C.sub.1 -C.sub.8 -alkoxy- or halogen-monosubstituted, -disubstituted, -trisubstituted, -tetrasubstituted or -pentasubstituted C.sub.3 -C.sub.12 -cycloalkyl, aryl, C.sub.7 -C.sub.20 -aralkyl, C.sub.7 -C.sub.20 -alkylaryl, --[(CH.sub.2).sub.2 --O].sub.n --R.sup.4, --{[CH(CH.sub.3)CH.sub.2 ]--O}.sub.m --R.sup.5, or R.sup.1 and R.sup.2 are together an uninterrupted or oxygen-, nitrogen- or sulfur-interrupted C.sub.3 -C.sub.12 -alkylene diradical chainR.sup.4 and R.sup.5 are each C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.12 -cycloalkyl, hydroxyl, --COR.sup.6 or --CH.sub.2 --COOR.sup.7, C.sub.3 -C.sub.12 -cycloalkyl, aryl, C.sub.7 -C.sub.20 -aralkyl or C.sub.7 -C.sub.20 -alkylaryl,R.sup.6 and R.sup.7 are each C.sub.1 -C.sub.12 -alkyl or C.sub.3 -C.sub.12 -cycloalkyl, andm and n are each from 1 to 40,from amines of the general formula II ##STR2## where R.sup.1, R.sup.2 and R.sup.3 are each as defined above, using hydrogen/oxygen mixtures at temperatures from (-5.degree.) to 90.degree. C. and pressures from 1 to 100 bar in the presence of oxidation catalysts comprises using as oxidation catalysts those of group VIII of the periodic table on titanium silicates, vanadium silicates or their mixtures with a zeolite structure.

    摘要翻译: 一种制备通式I(I)的氧化胺的方法,其中R 1,R 2和R 3各自是C 1 -C 30 - 烷基,C 3 -C 12 - 环烷基,C 1 -C 30羟基烷基,C 1 -C 30 - 氨基烷基,C 2 -C 30 - 烷氧基烷基,芳基,C 7 -C 20 - 芳烷基,C 7 -C 20烷基芳基,C 1 -C 8 - 烷基 - ,C 1 -C 8 - 烷氧基 - 或卤素 - 单取代的, - 取代的, - 三取代的, - 四取代的或未取代的C3- C 1 -C 8环烷基,C 7 -C 20 - 芳烷基,C 7 -C 20烷基芳基, - [(CH 2)2 -O] n -R 4, - {[CH(CH 3)CH 2] R2一起是不间断的或氧,氮或硫中断的C 3 -C 12亚烷基双基链R4和R5各自为C 1 -C 12烷基,C 3 -C 12环烷基,羟基,-COR 6或-CH 2 -COOR 7,C 3 -C 12 - 环烷基,芳基,C 7 -C 20 - 芳烷基或C 7 -C 20烷基芳基,R 6和R 7各自为C 1 -C 12 - 烷基或C 3 -C 12 - 环烷基,m和n各自为1-40, 通式II(II)其中R 1,R 2和R 3各自如上所定义,在(-5℃)至90℃的温度下使用氢/氧混合物,压力 在氧化催化剂存在下,1至100巴,包括在硅酸钛,硅酸钒或其与沸石结构的混合物上使用周期表第VIII族的氧化催化剂。