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4 条记录 (耗时 0.016 秒)

    Process for producing pyrazine compounds
    1.
    发明授权
    Process for producing pyrazine compounds 失效
    吡嗪化合物的制备方法

    公开(公告)号：US5693806A

    公开(公告)日：1997-12-02

    申请号：US681475

    申请日：1996-07-23

    申请人： Takayuki Shoji ,  Toru Nakaishi ,  Masafumi Mikata

    发明人： Takayuki Shoji ,  Toru Nakaishi ,  Masafumi Mikata

    IPC分类号： B01J23/38 ,  B01J23/50 ,  B01J23/60 ,  B01J23/66 ,  C07B61/00 ,  C07D241/12 ,  C07D241/02

    CPC分类号： C07D241/12 ,  B01J23/50 ,  B01J23/66

    摘要： A process for producing a pyrazine compound of the general formula (3): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 represent a hydrogen atom or a lower alkyl group, which comprises catalytically reacting in a gaseous phase a diamine compound of the general formula: ##STR2## with a diol compound of the general formula: ##STR3## in the presence of a catalyst containing hydrogen-treated silver or a catalyst containing silver and at least one element selected from the group consisting of alkali metals, alkaline earth metals, zinc and lanthanoid elements.

    摘要翻译： 制备通式（3）的吡嗪化合物的方法：其中R 1，R 2，R 3和R 4表示氢原子或低级烷基，其包括在气相中催化反应二胺化合物 具有以下通式的化合物：具有下式的二醇化合物：（2）在含有氢处理的银或含有银的催化剂的催化剂存在下，和选自以下的至少一种元素： 由碱金属，碱土金属，锌和镧系元素组成的组。

    Method for producing heteroaromatic aldehydes
    3.
    发明授权
    Method for producing heteroaromatic aldehydes 失效
    制备杂芳族醛的方法

    公开(公告)号：US06444815B1

    公开(公告)日：2002-09-03

    申请号：US09622501

    申请日：2000-08-18

    申请人： Tetsushi Nishiyama ,  Toru Nakaishi ,  Takayuki Shoji

    发明人： Tetsushi Nishiyama ,  Toru Nakaishi ,  Takayuki Shoji

    IPC分类号： C07D23320

    CPC分类号： C07D213/48

    摘要： There is provided a process for preparing a heteroaromatic aldehyde by catalytic reaction of alkyl-substituted heteroaromatic compound with molecular oxygen in a gaseous phase in the presence of a catalyst, which comprises employing an oxide containing vanadium, phosphorus, aluminium and silicon as a catalyst, and diluting a part or all of the oxide present as a catalyst layer in a reactor with a solid inert to the reaction.

    摘要翻译： 提供了在催化剂存在下，通过烷基取代的杂芳族化合物与气相中的分子氧的催化反应来制备杂芳族醛的方法，其包括使用含有钒，磷，铝和硅作为催化剂的氧化物， 并在反应器中以对反应惰性的固体稀释作为催化剂层存在的部分或全部氧化物。

    Process for preparing nitriles
    4.
    发明授权
    Process for preparing nitriles 失效
    腈类制备方法

    公开(公告)号：US4931561A

    公开(公告)日：1990-06-05

    申请号：US224012

    申请日：1988-07-25

    申请人： Shinkichi Shimizu ,  Takayuki Shoji ,  Kanji Kono ,  Toru Nakaishi

    发明人： Shinkichi Shimizu ,  Takayuki Shoji ,  Kanji Kono ,  Toru Nakaishi

    IPC分类号： C07D213/84 ,  C07D241/24

    CPC分类号： C07D213/84 ,  C07D241/24

    摘要： A heteroaromatic nitrile is prepared in high conversion and yield by catalytically reacting an alkyl-substituted heteroaromatic compound with molecular oxygen and ammonia in the presence of a catalyst having the following composition:Mo(P).sub.x (A).sub.y (B).sub.z (O).sub.w (I)wherein x, y, z and w represent atomic ratios of phosphorus, an element A defined below, an element B defined below and oxygen to molybdenum, respectively and(i) x and z are both 0 (zero), y is from 0.1 to 5, and A is at least one element selected from the group consisting of cerium and tungsten, or(ii) x is from 0.1 to 7, y is from 0 to 5, z is from 0 to 5, A is at least one element selected from the group consisting of cerium, manganese and tungsten, and B is at least one element selected from the group consisting of thallium, titanium, niobium and aluminum, or(iii) x is from 0.5 to 7, y is from 0 to 5, z is from 0.01 to 2. A is at least one element selected from the group consisting of cerium, manganese and tungsten, and B is vanadium,and w is defined from the valencies of molybdenum, phosphorus, the element A, the element B and the values x, y and z.