Process for producing acrylonitrile compound

    公开(公告)号:US08324420B2

    公开(公告)日:2012-12-04

    申请号:US13137584

    申请日:2011-08-26

    IPC分类号: C07C255/03

    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.

    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:US20060178523A1

    公开(公告)日:2006-08-10

    申请号:US10551041

    申请日:2004-03-26

    IPC分类号: C07C255/18

    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。

    Methods for producing pyrimidine compounds
    7.
    发明授权
    Methods for producing pyrimidine compounds 失效
    制备嘧啶化合物的方法

    公开(公告)号:US6087500A

    公开(公告)日:2000-07-11

    申请号:US147260

    申请日:1998-11-13

    摘要: A method for producing 2-amino-4,6-dimethoxypyrimidine, wherein 2-amino-5-chloro-4,6-dimethoxypyrimidine produced by reacting heptachloropropane or hexachloropropene and guanidine with methanol in the presence of a base, or by reacting 2-amino-4,5,6-trichloropyrimidine with methanol in the presence of a base, is used; and a method for producing 2-amino-4,6-dimethoxypyrimidine, characterized by reacting hexachloropropane or pentachloropropene and guanidine with methanol in the presence of a base.

    摘要翻译: PCT No.PCT / JP97 / 01534 Sec。 371日期:1998年11月13日 102(e)1998年11月13日PCT PCT 1997年5月7日PCT公布。 出版物WO97 / 43265 日期1997年11月20日制备2-氨基-4,6-二甲氧基嘧啶的方法,其中2-碱基-5-氯-4,6-二甲氧基嘧啶通过在碱存在下使七氯丙烷或六氯丙烯与胍与甲醇反应而制得, 或在碱存在下使2-氨基-4,5,6-三氯嘧啶与甲醇反应; 以及2-氨基-4,6-二甲氧基嘧啶的制备方法,其特征在于在碱的存在下使六氯丙烷或五氯丙烯与胍与甲醇反应。

    Process for production of hydrogen and sulfur from hydrogen sulfide as
raw material
    9.
    发明授权
    Process for production of hydrogen and sulfur from hydrogen sulfide as raw material 失效
    以硫化氢为原料生产氢硫的工艺

    公开(公告)号:US3962409A

    公开(公告)日:1976-06-08

    申请号:US517656

    申请日:1974-10-24

    IPC分类号: B01J27/00 C01B3/04 C01B17/04

    摘要: Sulfur and hydrogen are produced from hydrogen sulfide according to the present invention by bringing hydrogen sulfide into contact, at a temperature exceeding the boiling point of sulfur, with at least one member selected from the group consisting of the sulfides of molybdenum, tungsten and ruthenium to give rise to a gaseous mixture consisting of hydrogen sulfide, hydrogen and sulfur, cooling the produced mixture to separate therefrom the sulfur component in the condensed form and leave behind a gaseous mixture wherein the hydrogen component makes up the majority of the total weight thereof and subsequently removing hydrogen sulfide from this mixture by means of condensation or absorption.

    摘要翻译: 硫和氢由根据本发明的硫化氢通过使硫化氢在超过硫的沸点的温度下与至少一种选自钼,钨和钌的硫化物的组分接触而生成, 产生由硫化氢,氢和硫组成的气体混合物,冷却所产生的混合物以使冷凝形式的硫组分分离,留下气体混合物,其中氢组分占其总重量的大部分,随后 通过冷凝或吸收从该混合物中除去硫化氢。

    Process for producing acrylonitrile compound
    10.
    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。