Process for cyclizing hydrolysis of an aminonitrile compound to a lactam
    91.
    发明申请
    Process for cyclizing hydrolysis of an aminonitrile compound to a lactam 审中-公开
    使氨基腈化合物水解成内酰胺的方法

    公开(公告)号:US20040116691A1

    公开(公告)日:2004-06-17

    申请号:US10472473

    申请日:2004-01-20

    IPC分类号: C07D201/02

    CPC分类号: C07D201/08

    摘要: The invention pertains to a process for cyclizing hydrolysis of an aminonitrile compound to a lactam in the presence of a catalyst. It relates more particularly to a process for cyclizing hydrolysis of an aminonitrile compound in the presence of a solid catalyst of clay type. The invention applies particularly to the preparation of null-caprolactam by cyclizing hydrolysis of aminocapronitrile.

    摘要翻译: 本发明涉及在催化剂存在下使氨基腈化合物水解成内酰胺的方法。 更具体地涉及在粘土型固体催化剂存在下使氨基腈化合物水解环化的方法。 本发明特别适用于通过环化氨基己腈的水解制备ε-己内酰胺。

    Process for the preparation of N-substituted lactams
    94.
    发明授权
    Process for the preparation of N-substituted lactams 失效
    制备N-取代的内酰胺的方法

    公开(公告)号:US5986092A

    公开(公告)日:1999-11-16

    申请号:US888492

    申请日:1997-07-08

    摘要: The invention relates to a process for the preparation of N-substituted lactams by reaction of a lactam, which is unsubstituted on the nitrogen, with an organic halide in the presence of at least one solid-liquid phase transfer catalyst, such as a quaternary ammonium salt, and of at least one solid inorganic base, such as an alkali metal hydroxide, and in the absence of solvent. By this process, N-substituted lactams are obtained with good yields and high purity. The absence of solvent makes possible a considerable gain in productivity and an improvement in safety and in regard for the environment.

    摘要翻译: 本发明涉及一种制备N-取代的内酰胺的方法,该方法是在至少一种固相 - 液相转移催化剂如季铵盐存在下,通过在氮上未取代的内酰胺与有机卤化物反应制备N-取代的内酰胺 盐,以及至少一种固体无机碱,例如碱金属氢氧化物,以及在不存在溶剂的情况下。 通过该方法,获得了具有良好产率和高纯度的N-取代的内酰胺。 没有溶剂使生产效率大幅提高,安全性和环境方面都有所改善。

    Process for preparing a lactam
    97.
    发明授权
    Process for preparing a lactam 失效
    制备内酰胺的方法

    公开(公告)号:US5571913A

    公开(公告)日:1996-11-05

    申请号:US293098

    申请日:1994-08-19

    IPC分类号: C07D201/04 C07D201/02

    CPC分类号: C07D201/04

    摘要: The invention relates to a process for preparing a lactam from an alicyclic ketoxime in the presence of a lactim-O-sulphonic acid and a solvent, the reaction being carried out in the presence of an acid cation exchanger. The invention relates in particular to a process in which the alicyclic ketoxime is represented by the following general formula: ##STR1## where R is a linear or branched alkylidene group containing from 3 to 20 carbon atoms.

    摘要翻译: 本发明涉及一种在乳酰胺-O-磺酸和溶剂存在下由脂环族酮肟制备内酰胺的方法,该反应在酸性阳离子交换剂的存在下进行。 本发明特别涉及其中脂环酮肟由以下通式表示的方法:含有3至20个碳原子的亚烷基。

    Gamma-butyrolactams
    99.
    发明授权
    Gamma-butyrolactams 失效
    γ-丁内酰胺

    公开(公告)号:US4803285A

    公开(公告)日:1989-02-07

    申请号:US089897

    申请日:1987-08-27

    申请人: Wolfgang Hartwig

    发明人: Wolfgang Hartwig

    摘要: A process for the preparation of a C(3)-C(4)-transconfigurated.gamma.-butyrolactam of the formula (I) ##STR1## in which R.sup.1 represents hydrogen or alkyl, aryl or aralkyl with in each case up to 10 carbon atoms andR.sup.2 and R.sup.3 are identical or different and represent hydrogen, alkyl, aryl, aralkyl, alkoxy, aryloxy or aralkoxy with in each case up to 10 carbon atoms, acyl with up to 18 carbon atoms, trifluoromethyl, trifluoromethoxy, nitro, hydroxyl, halogen, amino, carboxyl, sulpho, dialkylamino with up to 4 carbon atoms in the alkyl groups or acylamino with up to 18 carbon atoms, in the form of their isomers, isomer mixtures, racemates or optical antipodes, comprising oxidizing a compound of the formula (II) ##STR2## in which R.sup.1, R.sup.2 and R.sup.3 have the above-mentioned meanings, in an inert organic solvent in the presence of a base. Such .gamma.-butyrolactams have an antiamnesic action.

    摘要翻译: 制备式(I)的(C)(I)的C(3)-C(4) - 转化的γ-丁内酰胺的方法,其中R 1表示氢或烷基,芳基或芳烷基,在每种情况下直至 10个碳原子,R2和R3相同或不同,代表氢,烷基,芳基,芳烷基,烷氧基,芳氧基或芳烷氧基,在每种情况下最多为10个碳原子,具有至多18个碳原子的酰基,三氟甲基,三氟甲氧基,硝基, 羟基,卤素,氨基,羧基,磺基,烷基中具有至多4个碳原子的二烷基氨基或至多18个碳原子的酰基氨基,其异构体,异构体混合物,外消旋体或光学对映体的形式,包括将 式(II)其中R1,R2和R3具有上述含义的式(II)在惰性有机溶剂中,在碱的存在下。 这种γ-丁内酰胺具有抗病毒作用。

    Process for the preparation of gamma-butyrolactams
    100.
    发明授权
    Process for the preparation of gamma-butyrolactams 失效
    制备γ-丁内酰胺的方法

    公开(公告)号:US4731455A

    公开(公告)日:1988-03-15

    申请号:US914210

    申请日:1986-10-01

    申请人: Wolfgang Hartwig

    发明人: Wolfgang Hartwig

    摘要: A process for the preparation of a C(3)-C(4)-transconfigurated .gamma.-butyrolactam of the formula (I) ##STR1## in which R.sup.1 represents hydrogen or alkyl, aryl or aralkyl with in each case up to 10 carbon atoms andR.sup.2 and R.sup.3 are identical or different and represent hydrogen, alkyl, aryl, aralkyl, alkoxy, aryloxy or aralkoxy with in each case up to 10 carbon atoms, acyl with up to 18 carbon atoms, trifluoromethyl, trifluoromethoxy, nitro, hydroxyl, halogen, amino, carboxyl, sulpho, dialkylamino with up to 4 carbon atoms in the alkyl groups or acylamino with up to 18 carbon atoms,in the form of their isomers, isomer mixtures, racemates or optical antipodes, comprising oxidizing a compound of the formula (II) ##STR2## in which R.sup.1, R.sup.2 and R.sup.3 have the above-mentioned meanings, in an inert organic solvent in the presence of a base. Such .gamma.-butyrolactams have an antiamnesic action.

    摘要翻译: 制备式(I)的(C)(I)的C(3)-C(4) - 转化的γ-丁内酰胺的方法,其中R 1表示氢或烷基,芳基或芳烷基,在每种情况下直至 10个碳原子,R2和R3相同或不同,代表氢,烷基,芳基,芳烷基,烷氧基,芳氧基或芳烷氧基,在每种情况下最多为10个碳原子,具有至多18个碳原子的酰基,三氟甲基,三氟甲氧基,硝基, 羟基,卤素,氨基,羧基,磺基,烷基中具有至多4个碳原子的二烷基氨基或至多18个碳原子的酰基氨基,其异构体,异构体混合物,外消旋体或光学对映体的形式,包括将 式(II)其中R1,R2和R3具有上述含义的式(II)在惰性有机溶剂中,在碱的存在下。 这种γ-丁内酰胺具有抗病毒作用。