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    Process for the production of alkyl-substituted unsaturated .delta.-lactams
    181.
    发明授权
    Process for the production of alkyl-substituted unsaturated .delta.-lactams 失效
    制备烷基取代的不饱和{67-内酰胺的方法

    公开(公告)号：US3944559A

    公开(公告)日：1976-03-16

    申请号：US395307

    申请日：1973-09-07

    Applicant: Martin Cherubim ,  Faisal Abodagga

    Inventor： Martin Cherubim ,  Faisal Abodagga

    IPC: C07D201/08 ,  C07D211/86 ,  C07D211/30

    CPC classification number: C07D201/08 ,  C07D211/86

    Abstract: Alkyl-substituted unsaturated .delta.-lactams are obtained by contacting monocyanoethylated ketones with an aqueous acid solution and permitting them to react. Alkyl-substituted unsaturated .delta.-lactams of this invention are valuable intermediate products useful for organic synthesis in the production of pharmaceuticals and plastics.

    Abstract translation: 烷基取代的不饱和β-内酰胺是通过使单乙基乙烯基酮与酸水溶液接触并使其反应而获得的。 本发明的烷基取代的不饱和的β-内酰胺是有用的中间产物，可用于生产药物和塑料中的有机合成。

    Ketone cleavage and products therefrom
    182.
    发明授权
    Ketone cleavage and products therefrom 失效
    KETONE CLEAVAGE和产品

    公开(公告)号：US3857510A

    公开(公告)日：1974-12-31

    申请号：US28568172

    申请日：1972-09-01

    Applicant: ALLIED CHEM

    Inventor： ROGIC M ,  FUHRMANN R

    IPC: C07D201/08 ,  C07D53/06

    CPC classification number: C07D201/08

    Abstract: A method of cleaving ketones at a carbon-carbon bond adjacent to the ketonic carbon to produce a terminal carboxylic ester and a terminal oxime group, which comprises, nitrosating the ketone in the presence of a polar aprotic solvent and an alcohol. The products are useful intermediates, particularly as intermediates in the production of polyamides, and as solvents. A method of synthesizing Epsilon -caprolactam from the intermediate omega hydroximino hexanoate, produced by cleaving cyclohexanone, hydrogenating the intermediate omega -aminohexanoate ester and cyclizing the corresponding ester thus formed, to Epsilon caprolactam.

    Abstract translation: 一种在与碳酮碳相邻的碳 - 碳键处切割酮的方法，以产生末端羧酸酯和末端肟基，其包括在极性非质子溶剂和醇的存在下亚硝化酮。 该产品是有用的中间体，特别是作为生产聚酰胺和作为溶剂的中间体。 通过裂解环己酮，氢化中间体ω-氨基己酸酯并将由此形成的相应的酯环化为ε-己内酰胺从中间体ω-羟肟基己酸酯合成ε-己内酰胺的方法。

    Preparation of 2-pyrrolidinone
    183.
    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。

    Process for producing alpha-pyrrolidone
    184.
    发明授权
    Process for producing alpha-pyrrolidone 失效
    生产α-羟基吡咯烷酮的方法

    公开(公告)号：US3644402A

    公开(公告)日：1972-02-22

    申请号：US3644402D

    申请日：1969-05-06

    Applicant: SUMITOMO CHEMICAL CO

    Inventor： TAKAGI KAZUMI ,  MURAKAMI MASAHIRO ,  MATSUDA TERUO

    IPC: C07D201/08 ,  C07D27/08

    CPC classification number: C07D201/08

    Abstract: HIGH YIELD OF A-PYRROLIDONE ARE OBTAINED BY REACTING SUCCINONITRILE WITH HYDROGEN UNDER PRESSURE IN THE PRESENCE OF A HYDROGENATING CATALYST AT A TEMPERATURE OF 80* TO 200*C. IN A NITROGEN-CONTAINING BASIC ORGANIC SOLVENT FOR A REACTION PERIOD SHORTER THAN 3.7 MINUTES AND THEN CONTACTING THE THUS OBTAINED REACTION MIXTURE WITH WATER OR AQUEOUS AMMONIA SOLUTION AT A TEMPERATURE OF 200* TO 300*C. ALPHA-PYRROLIDONE IS USEFUL AS AN IMPORTANT RAW MATERIAL OF 4-NYLON AND AS A RAW MATERIAL FOR THE PRODUCTION OF N-METHYL PYRROLIDONE AND N-VINYL PYRROLIDONE, BOTH USEFUL AS A HIGH BOILING SOLVENT, OR AS A FIBER RAW MATERIAL.

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