LOW METAL LOADED, ALUMINA SUPPORTED, CATALYST COMPOSITIONS AND AMINATION PROCESS
    4.
    发明申请
    LOW METAL LOADED, ALUMINA SUPPORTED, CATALYST COMPOSITIONS AND AMINATION PROCESS 有权
    低金属负载,支持的氧化铝,催化剂组合物和氨化过程

    公开(公告)号:US20130023698A1

    公开(公告)日:2013-01-24

    申请号:US13623687

    申请日:2012-09-20

    IPC分类号: C07C209/66

    摘要: The present invention provides catalyst compositions useful for transamination reactions. The catalyst compositions have a catalyst support that includes transitional alumina, use a low metal loading (for example, less than 25 wt. %), and do not require the presence of rhenium. The catalyst compositions are able to advantageously promote transamination of a reactant product (such as the transamination of EDA to DETA) with excellent activity and selectivity, and similar to transaminations promoted using a precious metal-containing catalyst.

    摘要翻译: 本发明提供了可用于氨基转移反应的催化剂组合物。 催化剂组合物具有包括过渡氧化铝的催化剂载体,使用低的金属负载(例如,小于25重量%),并且不需要存在铼。 催化剂组合物能够以优异的活性和选择性有利地促进反应物产物的转氨基反应(如EDA的转氨酶),并且类似于使用贵金属的催化剂促进的转氨酶。

    Low metal loaded, alumina supported, catalyst compositions and amination process
    5.
    发明申请
    Low metal loaded, alumina supported, catalyst compositions and amination process 有权
    低金属负载,氧化铝负载,催化剂组合物和胺化方法

    公开(公告)号:US20100137642A1

    公开(公告)日:2010-06-03

    申请号:US12587355

    申请日:2009-10-06

    摘要: The present invention provides catalyst compositions useful for transamination reactions. The catalyst compositions have a catalyst support that includes transitional alumina, use a low metal loading (for example, less than 25 wt. %), and do not require the presence of rhenium. The catalyst compositions are able to advantageously promote transamination of a reactant product (such as the transamination of EDA to DETA) with excellent activity and selectivity, and similar to transaminations promoted using a precious metal-containing catalyst.

    摘要翻译: 本发明提供了可用于氨基转移反应的催化剂组合物。 催化剂组合物具有包括过渡氧化铝的催化剂载体,使用低的金属负载(例如,小于25重量%),并且不需要存在铼。 催化剂组合物能够以优异的活性和选择性有利地促进反应物产物的转氨基反应(如EDA的转氨酶),并且类似于使用贵金属的催化剂促进的转氨酶。

    Perfected Process for the Preparation of Stable Nitroxide Radicals
    6.
    发明申请
    Perfected Process for the Preparation of Stable Nitroxide Radicals 有权
    用于制备稳定的硝基氧自由基的完善方法

    公开(公告)号:US20070282113A1

    公开(公告)日:2007-12-06

    申请号:US11574582

    申请日:2005-08-25

    IPC分类号: C07C209/66

    CPC分类号: C07D209/44

    摘要: Process for the preparation of stable nitroxide radicals (I) starting from N-benzylphthalimide in three steps. In the first step, the N-benzylphthalimide is transformed into N-benzyl-1,1,3,3-tetralkylisoindoline by treatment with a Grignard reagent prepared in methyl-tert-butyl ether In the second step, the N-benzyl-1,1,3,3-tetraalkylisoindoline is transformed into 1,1,3,3-tetra-alkylisoindoline by hydrogenolysis. In the third step, the 1,1,3,3-tetra-alkyl-isoindoline is transformed into the nitroxide radical by oxidation with hydrogen peroxide in the presence of a catalyst selected from acids and salts of polymolybdic or polytungstic acids.

    摘要翻译: 从N-苄基邻苯二甲酰亚胺开始三步制备稳定的氮氧自由基(I)的方法。 在第一步中,通过用在甲基叔丁基醚中制备的格氏试剂处理,将N-苄基邻苯二甲酰亚胺转化成N-苄基-1,1,3,3-四烷基异吲哚啉。在第二步中,将N-苄基-1 ,1,3,3-四烷基异吲哚啉通过氢解转化为1,1,3,3-四烷基异吲哚啉。 在第三步中,通过在选自酸和多钼酸或多钨酸的盐的催化剂的存在下,用过氧化氢氧化将1,1,3,3-四烷基 - 异吲哚啉转化为硝基氧基。

    Process for preparing triphenylamine compounds by using a nitrogen
trihalide
    7.
    发明授权
    Process for preparing triphenylamine compounds by using a nitrogen trihalide 失效
    通过使用氮三卤化物制备三苯胺化合物的方法

    公开(公告)号:US6022997A

    公开(公告)日:2000-02-08

    申请号:US280981

    申请日:1999-03-30

    CPC分类号: C07C209/10

    摘要: This invention provides a process for the preparation of triphenylamine compounds useful as charge transport materials. According to this process, a triphenylamine compound of the general formula (2) ##STR1## of the general formula (1) ##STR2## into a lithio compound, and reacting the lithio compound with a nitrogen trihalide. In the above formulae, Ar.sub.1 to Ar.sub.8 each represent an optionally substituted phenyl radical, R.sub.1 to R.sub.8 each represent a hydrogen atom or a methyl group, and X represents a halogen atom.

    摘要翻译: 本发明提供了制备可用作电荷传输材料的三苯胺化合物的方法。 根据该方法,将通式(1)的通式(2)的三苯胺化合物加入到锂化合物中,并使该锂化合物与氮三卤化物反应。 在上式中,Ar 1〜Ar 8表示任意取代的苯基,R 1〜R 8各自表示氢原子或甲基,X表示卤素原子。