Preparation of vinylsilane-benzocyclobutenes
    3.
    发明授权
    Preparation of vinylsilane-benzocyclobutenes 失效
    乙烯基硅烷 - 苯并环丁烯的制备

    公开(公告)号:US5416233A

    公开(公告)日:1995-05-16

    申请号:US186412

    申请日:1994-01-25

    摘要: This invention relates to a novel process for preparing vinylsilane-BCBs (vinylsilane-benzocyclobutenes) comprising reacting a hydrosilating reagent with an acetylene-BCB in the presence of a catalyst.The invention also relates to a novel mixture of isomers of DVS-bisBCB (1,3-divinyl-1,1,3,3-tetramethyldisiloxane bisbenzocyclobutene) as well as novel partially or fully cured polymers derived from the vinylsilane BCBs.

    摘要翻译: 本发明涉及制备乙烯基硅烷-BCBs(乙烯基硅烷 - 苯并环丁烯)的新方法,包括在催化剂存在下使氢化硅烷化试剂与乙炔-BCB反应。 本发明还涉及DVS-bisBCB(1,3-二乙烯基-1,1,3,3-四甲基二硅氧烷双苯并环丁烯)的异构体的新颖混合物以及衍生自乙烯基硅烷BCB的新型部分或完全固化的聚合物。

    Process for purifying vinylically unsaturated compounds prepared using a
palladium-complex catalyst
    4.
    发明授权
    Process for purifying vinylically unsaturated compounds prepared using a palladium-complex catalyst 失效
    用钯络合物催化剂制备乙烯基不饱和化合物的方法

    公开(公告)号:US5491250A

    公开(公告)日:1996-02-13

    申请号:US409115

    申请日:1995-03-23

    IPC分类号: C07F7/08

    CPC分类号: C07F7/089 C07F7/0849

    摘要: A crude vinylically unsaturated product formed from a palladium-complex-catalyzed reaction of a reactant halide selected from the group consisting of aryl, allyl, vinyl, and benzyl halides, and a reactant olefin having a vinylic hydrogen, wherein the reaction is carried out in the presence of a hydrogen halide acceptor, is purified by first contacting the crude product with a base that is stronger than the hydrogen halide acceptor, then heating the stronger base-contacted product. The purified product shows a marked reduction in concentration bromine and palladium impurities. The product can then be further purified by such methods as chromatography, crystallization, or distillation to achieve a product that is more suitable for applications where very low levels of inorganic impurities are required.

    摘要翻译: 由选自芳基,烯丙基,乙烯基和苄基卤的反应物卤化物和具有乙烯基氢的反应物烯烃的钯络合物催化反应形成的粗制乙烯基不饱和产物,其中反应在 通过首先使粗产物与比卤化氢受体更强的碱接触,然后加热较强的碱接触产物来纯化卤化氢受体的存在。 纯化的产物显示出溴和钯杂质浓度的显着降低。 然后可以通过诸如色谱,结晶或蒸馏的方法进一步纯化产物,以获得更适合需要非常低水平无机杂质的应用的产品。

    Process for making 2-amino-3-methyl-1-naphthalenecarbonitrile
    7.
    发明授权
    Process for making 2-amino-3-methyl-1-naphthalenecarbonitrile 失效
    制备2-氨基-3-甲基-1-萘甲腈的方法

    公开(公告)号:US5194658A

    公开(公告)日:1993-03-16

    申请号:US844370

    申请日:1992-03-20

    IPC分类号: C07C255/58

    摘要: 2-amino-3-methyl-1-naphthalenecarbonitriles of the formula: ##STR1## wherein R is alkyl of from 1 to 6 carbon atoms, halogen, cyano, or hydrogen are prepared by pyrolizing a by-product of a SAN or ABS manufacturing process of the formula: ##STR2## wherein R is alkyl of from 1 to 6 carbon atoms, halogen, cyano, or hydrogen.In another respect, this invention is a process for identifying aldehydes comprising: (a) contacting 2-amino-3-methyl-1-naphthalene-carbonitrile with aldehydes to form an UV-absorbing imine, and (b) analyzing the imine using conventional analytical techniques to identify the presence of the imines.

    摘要翻译: 其中R是1至6个碳原子的烷基,卤素,氰基或氢的2-氨基-3-甲基-1-萘甲腈通过热解SAN或ABS制造的副产物来制备 下式的方法:其中R是1至6个碳原子的烷基,卤素,氰基或氢。 在另一方面,本发明是鉴定醛的方法,其包括:(a)使2-氨基-3-甲基-1-萘甲腈与醛反应以形成UV吸收亚胺,和(b)使用常规的方法分析亚胺 分析技术来确定亚胺的存在。