利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

3 条记录 (耗时 0.018 秒)

    Process for the preparation of ketones
    1.
    发明授权
    Process for the preparation of ketones 失效
    酮的制备方法

    公开(公告)号：US5274136A

    公开(公告)日：1993-12-28

    申请号：US907342

    申请日：1992-07-01

    申请人： Frank D. Mills ,  Richard T. Brown ,  Giles D. Mills, Jr.

    发明人： Frank D. Mills ,  Richard T. Brown ,  Giles D. Mills, Jr.

    IPC分类号： A01N35/02 ,  A01N43/08 ,  C07C45/67 ,  C07C49/577 ,  C07D307/42 ,  C07C45/65 ,  C07D307/46

    CPC分类号： A01N43/08 ,  A01N35/02 ,  C07C45/676 ,  C07C49/577 ,  C07D307/42

    摘要： An improved method for the decarbalkoxylation of alkylated .beta.-keto esters to obtain high yields of ketones. In accordance with the method, decarbalkoxylation of alkylated .beta.-keto esters is accomplished by heating the esters in the presence of dilute aqueous alkali and an effective amount of a phase-transfer agent. The method produces commercially practical yields of ketone in a manner which is facile, economical and environmentally safe. Novel methylene-linked pyrethroid ketones produced from the improved method exhibit insecticidal activity against various agricultural pests.

    摘要翻译： 烷基化β-酮酯的脱烷基氧化的改进方法，以获得高产率的酮。 根据该方法，通过在稀碱水溶液和有效量的相转移剂存在下加热酯来实现烷基化β-酮酯的脱烷基氧化。 该方法以便利，经济和环境安全的方式产生商业上实用的酮产率。 由改进的方法生产的新型亚甲基联结的拟除虫菊酯对各种农业害虫具有杀虫活性。

    Process for the preparation of ketones and novel insecticides produced therefrom
    2.
    发明授权
    Process for the preparation of ketones and novel insecticides produced therefrom 失效
    用于制备由其制备的酮和新型杀虫剂的方法

    公开(公告)号：US4829091A

    公开(公告)日：1989-05-09

    申请号：US55265

    申请日：1987-05-27

    申请人： Frank D. Mills ,  Richard T. Brown ,  Giles D. Mills, Jr

    发明人： Frank D. Mills ,  Richard T. Brown ,  Giles D. Mills, Jr

    IPC分类号： A01N35/02 ,  A01N43/08 ,  C07C45/67 ,  C07C49/577 ,  C07D307/42

    CPC分类号： C07C45/676 ,  A01N35/02 ,  A01N43/08 ,  C07C49/577 ,  C07D307/42

    摘要： An improved method for the decarbalkoxylation of alkylated .beta.-keto esters to obtain high yields of ketones. In accordane with the method, decarbalkoxylation of alkylated .beta.-keto esters is accomplished by heating the esters in the presence of dilute aqueous alkali and an effective amount of a phase-transfer agent. The method produces commercially practical yields of ketone in a manner which is facile, economical and environmentally safe. Novel methylene-linked pyrethroid ketones produced from the improved method exhibit insecticidal activity against various agricultural pests.

    摘要翻译： 烷基化β-酮酯的脱烷基氧化的改进方法，以获得高产率的酮。 根据该方法，烷基化β-酮酯的脱烷基氧化通过在稀碱水溶液和有效量的相转移剂的存在下加热酯来实现。 该方法以便利，经济和环境安全的方式产生商业上实用的酮产率。 由改进的方法生产的新型亚甲基联结的拟除虫菊酯对各种农业害虫具有杀虫活性。

    Process for the preparation of ketones and novel insecticides produced therefrom
    3.
    发明授权
    Process for the preparation of ketones and novel insecticides produced therefrom 失效
    用于制备由其制备的酮和新型杀虫剂的方法

    公开(公告)号：US5157048A

    公开(公告)日：1992-10-20

    申请号：US790042

    申请日：1991-11-12

    申请人： Frank D. Mills ,  Richard T. Brown ,  Giles D. Mills, Jr.

    发明人： Frank D. Mills ,  Richard T. Brown ,  Giles D. Mills, Jr.

    IPC分类号： A01N35/02 ,  A01N43/08 ,  C07C45/67 ,  C07C49/577 ,  C07D307/42

    CPC分类号： A01N35/02 ,  A01N43/08 ,  C07C45/676 ,  C07C49/577 ,  C07D307/42

    摘要： An improved method for the decarbalkoxyation of alkylated .beta.-keto esters to obtain high yields of ketones. In accordance with the method, decarbalkoxylation of alkylated .beta.-keto esters is accomplished by heating the esters in the presence of dilute aqueous alkali and an effective amount of a phase-transfer agent. The method produces commercially practical yields of ketone in a manner which is facile, economical and environmentally safe. Novel methylene-linked pyrethroid ketones produced from the improved method exhibit insecticidal activity against various agricultural pests.

    摘要翻译： 烷基化β-酮酯的脱烷基氧化的改进方法以获得高产率的酮。 根据该方法，通过在稀碱水溶液和有效量的相转移剂存在下加热酯来实现烷基化β-酮酯的脱烷基氧化。 该方法以便利，经济和环境安全的方式产生商业上实用的酮产率。 由改进的方法生产的新型亚甲基联结的拟除虫菊酯对各种农业害虫具有杀虫活性。