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    Method for the preparation of &bgr;-lactam compound
    101.
    发明授权
    Method for the preparation of &bgr;-lactam compound 失效
    β-内酰胺化合物的制备方法

    公开(公告)号：US06407228B1

    公开(公告)日：2002-06-18

    申请号：US08527217

    申请日：1995-09-12

    Applicant: Yoichi Taguchi ,  Akihiro Oishi ,  Isao Shibuya ,  Tohru Tsuchiya

    Inventor： Yoichi Taguchi ,  Akihiro Oishi ,  Isao Shibuya ,  Tohru Tsuchiya

    IPC: C07D20508

    CPC classification number: C07D201/02 ,  C07D205/08

    Abstract: A simple and efficient method is proposed for the preparation of a &bgr;-lactam compound such as 1-phenyl-4-ethoxy-2-azetidinone which can be produced by mixing an isocyanate compound such as phenyl isocyanate and a vinyl ether compound such as ethyl vinyl ether and heating the mixture at a moderate temperature under a superatmospheric pressure of up to 12000 atmospheres.

    Abstract translation: 提出了一种制备β-内酰胺化合物如1-苯基-4-乙氧基-2-氮杂环丁酮的简单且有效的方法，其可以通过将异氰酸酯化合物如异氰酸苯酯和乙烯基醚化合物如乙基 乙烯基醚，并在中等温度下在高达12000个大气压的超大气压下加热该混合物。

    Epsilon caprolactam compositions
    103.
    发明授权
    Epsilon caprolactam compositions 失效
    Epsilon己内酰胺组合物

    公开(公告)号：US5925754A

    公开(公告)日：1999-07-20

    申请号：US956745

    申请日：1997-10-23

    Applicant: John Michael Maher ,  David Robert Bryant ,  Johnathan Eugene Holladay ,  Thomas Carl Eisenschmid ,  John Robert Briggs ,  Kurt Damar Olson

    Inventor： John Michael Maher ,  David Robert Bryant ,  Johnathan Eugene Holladay ,  Thomas Carl Eisenschmid ,  John Robert Briggs ,  Kurt Damar Olson

    IPC: E02B5/08 ,  C02F1/00 ,  C07C29/16 ,  C07C45/49 ,  C07C45/50 ,  C07C45/68 ,  C07C47/19 ,  C07D201/02 ,  C07D201/08 ,  C07D213/16 ,  C07D213/30 ,  C07D213/55 ,  C07F9/6574 ,  C08G69/02 ,  C08G69/14 ,  C08G69/36 ,  C07D223/10

    CPC classification number: C07D201/02 ,  C07C45/49 ,  C07C45/50 ,  C07C45/68 ,  C07C47/19 ,  C07D201/08 ,  C07F9/65744 ,  C08G69/02 ,  C08G69/14 ,  C08G69/36 ,  Y02P20/582

    Abstract: This invention relates to a composition comprising (a) epsilon caprolactam and (b) one or more of 5-�4,5-di(3-carboxypropyl)-2-pyridyl!pentanoic acid or salt or amide, 4-�4,5-di(2-carboxypropyl)-2-pyridyl!-2-methylbutanoic acid or salt or amide, 2-�2-(2-carboxybutyl)-5-(1-carboxypropyl)-4-pyridyl!butanoic acid or salt or amide, 5-�3,5-di(3-carboxypropyl)-2-pyridyl!pentanoic acid or salt or amide, 4-�3,5-di(2-carboxypropyl)-2-pyridyl!-2-methylbutanoic acid or salt or amide, 2-�-2-(2-carboxybutyl)-5-(1-carboxypropyl)-3-pyridyl!butanoic acid or salt or amide, 5-amino-4-methylpentanamide, 4-amino-3-ethylbutanamide, 5-�4,5-di(4-hydroxybutyl)-2-pyridyl!pentanol, 4-�4,5-di(2-methoxypropyl)-2-pyridyl!-2-methylbutanol, 2-�2-(2-methoxybutyl)-5-(1-methoxypropyl)-4-pyridyl!butanol, 5-�3,5-di(4-hydroxybutyl)-2-pyridyl!pentanol, 4-�3,5-di(2-methoxypropyl)-2-pyridyl!-2-methylbutanol, 2-�2-(2-methoxybutyl)-5-(1-methoxypropyl)-3-pyridyl!butanol, 5-amino-4-methyl-1-pentanol, 5-imino-2-methyl-1-pentanamine, 5-amino-2-methyl-1-pentanol, 5-imino-4-methyl-1-pentanamine and 2-butyl-4,5-dipropylpyridine, wherein the weight ratio of component (a) to component (b) is at least about 99 to 1. The epsilon caprolactam compositions are useful in the preparation of nylon 6.

    Abstract translation: 本发明涉及包含（a）ε-己内酰胺和（b）一种或多种5- [4,5-二（3-羧丙基）-2-吡啶基]戊酸或其盐或酰胺的组合物，4- [ 2-（2-羧基丙基）-2-吡啶基] -2-甲基丁酸或盐或酰胺，2- [2-（2-羧基丁基）-5-（1-羧基丙基）-4-吡啶基]丁酸或盐 或酰胺，5- [3,5-二（3-羧丙基）-2-吡啶基]戊酸或盐或酰胺，4- [3,5-二（2-羧丙基）-2-吡啶基] -2-甲基丁酸 酸或盐或酰胺，2- [ - 2-（2-羧丁基）-5-（1-羧基丙基）-3-吡啶基]丁酸或盐或酰胺，5-氨基-4-甲基戊酰胺，4-氨基-3 乙基丁酰胺，5- [4,5-二（4-羟丁基）-2-吡啶基]戊醇，4- [4,5-二（2-甲氧基丙基）-2-吡啶基] -2-甲基丁醇，2- [2 - （2-甲氧基丁基）-5-（1-甲氧基丙基）-4-吡啶基]丁醇，5- [3,5-二（4-羟基丁基）-2-吡啶基]戊醇，4- [3,5-二 2-甲氧基丙基）-2-吡啶基] -2-甲基丁醇，2- [2-（2-甲氧基丁基）-5-（1-甲氧基丙基）-3-吡啶基]丁醇，5-氨基-4-甲基-1-戊醇 ，5-亚氨基-2-甲基-1-戊酰胺 5-氨基-2-甲基-1-戊醇，5-亚氨基-4-甲基-1-戊胺和2-丁基-4,5-二丙基吡啶，其中组分（a）与组分（b）的重量比为 至少约99至1。ε-己内酰胺组合物可用于制备尼龙6。

    Preparation of 2-pyrrolidinone
    106.
    发明授权
    Preparation of 2-pyrrolidinone 失效
    2-吡咯烷酮的制备

    公开(公告)号：US3681387A

    公开(公告)日：1972-08-01

    申请号：US3681387D

    申请日：1970-10-16

    Applicant: SUN OIL CO

    Inventor： HOLLSTEIN ELMER J ,  SCOTT KENNETH A

    IPC: C07D201/02 ,  C07D201/08 ,  C07D27/08

    CPC classification number: C07D201/02 ,  C07D201/08

    Abstract: An improved process for preparing 2-pyrrolidinone at relatively low pressures which comprises reduction of succinimide in an aqueous system at temperatures of about 225* to 275* C., at a pressure in the range of about 1,200 to 1,500 p.s.i.g. and in the presence of a supported palladium catalyst.

    Abstract translation: 一种用于在相对低的压力下制备2-吡咯烷酮的改进方法，其包括在约225-275℃的温度下在水性体系中还原琥珀酰亚胺，压力范围为约1,200至1,500p.s.i。 并在负载型钯催化剂存在下进行。

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