Process for producing acrylonitrile compound
    2.
    发明授权
    Process for producing acrylonitrile compound 有权
    制备丙烯腈化合物的方法

    公开(公告)号:US08138368B2

    公开(公告)日:2012-03-20

    申请号:US12588251

    申请日:2009-10-08

    IPC分类号: C07C255/03 C07C211/78

    CPC分类号: C07D231/12

    摘要: There is provided a process for stereoselectively producing E-form of 3-acyloxyacrylonitrile compound (3) or Z-form which comprises reacting 3-oxopropionitrile compound (1) with an acid chloride (2), characterized in that the reaction is conducted with removal of hydrogen chloride, or by using an organic base or an inorganic base, to thereby regulate the stereostructure of the product; a process for producing the compound (1) characterized by reacting acetonitrile compound (5) with an aromatic ester compound (6) by use of an alkali metal alkoxide in a hydrocarbon solvent while removing alcohol formed as a by-product by azeotropic distillation in a separating tank; and a process for isomerizing E-form of 3-acyloxyacrylonitrile compound to Z-form thereof by use of an organic base.

    摘要翻译: 提供了一种用于立体选择性地生产3-酰氧基丙烯腈化合物(3)或Z-型的E-型的方法,其包括使3-氧代丙腈化合物(1)与酰氯(2)反应,其特征在于反应进行除去 的氯化氢,或通过使用有机碱或无机碱,从而调节产物的立体结构; 一种制备化合物(1)的方法,其特征在于在烃溶剂中使用碱金属醇盐使乙腈化合物(5)与芳族酯化合物(6)反应,同时通过共沸蒸馏除去形成副产物的醇 分离罐 以及通过使用有机碱将E-型3-酰氧基丙烯腈化合物异构化为Z-形式的方法。

    Process for producing acrylonitrile compound
    3.
    发明申请
    Process for producing acrylonitrile compound 有权
    制备丙烯腈化合物的方法

    公开(公告)号:US20110313173A1

    公开(公告)日:2011-12-22

    申请号:US13137584

    申请日:2011-08-26

    IPC分类号: C07D403/06 C07D231/12

    CPC分类号: C07D231/12

    摘要: There is provided a process for stereoselectively producing E-form of 3-acyloxyacrylonitrile compound (3) or Z-form which comprises reacting 3-oxopropionitrile compound (1) with an acid chloride (2), characterized in that the reaction is conducted with removal of hydrogen chloride, or by using an organic base or an inorganic base, to thereby regulate the stereostructure of the product; a process for producing the compound (1) characterized by reacting acetonitrile compound (5) with an aromatic ester compound (6) by use of an alkali metal alkoxide in a hydrocarbon solvent while removing alcohol formed as a by-product by azeotropic distillation in a separating tank; and a process for isomerizing E-form of 3-acyloxyacrylonitrile compound to Z-form thereof by use of an organic base.

    摘要翻译: 提供了一种用于立体选择性地生产3-酰氧基丙烯腈化合物(3)或Z-型的E-型的方法,其包括使3-氧代丙腈化合物(1)与酰氯(2)反应,其特征在于反应进行除去 的氯化氢,或通过使用有机碱或无机碱,从而调节产物的立体结构; 一种制备化合物(1)的方法,其特征在于在烃溶剂中使用碱金属醇盐使乙腈化合物(5)与芳族酯化合物(6)反应,同时通过共沸蒸馏除去形成副产物的醇 分离罐 以及通过使用有机碱将E-型3-酰氧基丙烯腈化合物异构化为Z-形式的方法。

    Process for producing acrylonitrile compound
    4.
    发明授权
    Process for producing acrylonitrile compound 有权
    制备丙烯腈化合物的方法

    公开(公告)号:US07649104B2

    公开(公告)日:2010-01-19

    申请号:US10551041

    申请日:2004-03-26

    IPC分类号: C07C255/07

    CPC分类号: C07D231/12

    摘要: There is provided a process for stereoselectively producing E-form of 3-acyloxyacrylonitrile compound (3) or Z-form which comprises reacting 3-oxopropionitrile compound (1) with an acid chloride (2), characterized in that the reaction is conducted with removal of hydrogen chloride, or by using an organic base or an inorganic base, to thereby regulate the stereostructure of the product; a process for producing the compound (1) characterized by reacting acetonitrile compound (5) with an aromatic ester compound (6) by use of an alkali metal alkoxide in a hydrocarbon solvent while removing alcohol formed as a by-product by azeotropic distillation in a separating tank; and a process for isomerizing E-form of 3-acyloxyacrylonitrile compound to Z-form thereof by use of an organic base.

    摘要翻译: 提供了一种用于立体选择性地生产3-酰氧基丙烯腈化合物(3)或Z-型的E-型的方法,其包括使3-氧代丙腈化合物(1)与酰氯(2)反应,其特征在于反应进行除去 的氯化氢,或通过使用有机碱或无机碱,从而调节产物的立体结构; 一种制备化合物(1)的方法,其特征在于在烃溶剂中使用碱金属醇盐使乙腈化合物(5)与芳族酯化合物(6)反应,同时通过共沸蒸馏除去形成副产物的醇 分离罐 以及通过使用有机碱将E-型3-酰氧基丙烯腈化合物异构化为Z-形式的方法。

    RADIO WAVE ABSORBER AND PRODUCTION METHOD THEREOF
    9.
    发明申请
    RADIO WAVE ABSORBER AND PRODUCTION METHOD THEREOF 失效
    无线电波吸收器及其制作方法

    公开(公告)号:US20050030218A1

    公开(公告)日:2005-02-10

    申请号:US10911444

    申请日:2004-08-04

    IPC分类号: H05K9/00 H01Q17/00

    CPC分类号: H01Q17/004

    摘要: A radio wave absorber is provided which can be produced at a low cost compared to the case of using silicon carbide fiber and which is also superior in radio wave absorption property in 76 GHz band (75-77 GHz frequency band). The radio wave absorber is produced by arranging a radio wave absorbing layer onto the surface of a metal body. The radio wave absorbing layer is made of a radio wave absorbing material containing silicon carbide powder dispersed in matrix resin. Average particle diameter of the silicon carbide powder is 4-40 μm. Silicon carbide powder content in the radio wave absorbing material is 15-45 volume %. Thickness of the radio wave absorbing layer is adjusted so that reflection attenuation of not less than 10 dB is provided in 76 GHz band.

    摘要翻译: 提供了与使用碳化硅纤维的情况相比低成本地制造的电波吸收体,并且在76GHz频带(75-77GHz频带)中的电波吸收特性也优异。 通过在金属体的表面上配置无线电波吸收层来制造无线电波吸收体。 无线电波吸收层由分散在基体树脂中的碳化硅粉末的无线电波吸收材料制成。 碳化硅粉末的平均粒径为4-40μm。 无线电波吸收材料中的碳化硅粉末含量为15-45体积%。 调整无线电波吸收层的厚度,使得在76GHz频带中提供不小于10dB的反射衰减。