Solvents for use in fluorination reactions
    1.
    发明授权
    Solvents for use in fluorination reactions 失效
    用于氟化反应的溶剂

    公开(公告)号:US06198011B1

    公开(公告)日:2001-03-06

    申请号:US09230973

    申请日:1999-03-25

    IPC分类号: C07C1720

    摘要: A method of fluorinating an organic compound comprising reacting an organic compound with a fluorinating agent characterized in that a perfluorocarbon compound is present in the reaction medium. The perfluorocarbon compound may replace an amount of a solvent which would otherwise be required for the reaction to proceed efficiently. The perfluorocarbon compound is readily recoverable after reaction and may be re-used in subsequent reactions. Additives to the reaction medium, such as 18-crown-6, may increase the amoun of solvent which may be replaced. The method is beneficial where solvent consumption would otherwise be large, or where solvent recovery would otherwise be difficult.

    摘要翻译: 氟化有机化合物的方法包括使有机化合物与氟化剂反应,其特征在于全氟化碳化合物存在于反应介质中。 全氟化碳化合物可以代替一定量的溶剂,否则反应有必要有效地进行。 全氟化碳化合物在反应后易于回收,并可在随后的反应中重新使用。 对于反应介质,如18-冠-6的添加剂,可以增加可以被替换的溶剂的溶液。 该方法是有利的,因为溶剂消耗否则会很大,或者否则将难以进行溶剂回收。

    Novel hexafluorohexenes
    3.
    发明授权
    Novel hexafluorohexenes 失效
    新六氟己烯

    公开(公告)号:US3911035A

    公开(公告)日:1975-10-07

    申请号:US41558073

    申请日:1973-11-14

    申请人: PENNWALT CORP

    摘要: Cis and trans-1-trifluoromethyl-1,2,2-trifluoro-4methylcyclobutane and mixtures thereof are provided. These compositions are liquids having high dielectric constant and low freezing points, useful as working fluids for hydraulic systems and as inert solvents. Also provided are linear dimers, 4,4,5,6,6,6-hexafluorohexene-1 and 4,4,5,6,6,6-hexafluorohexene2, useful as comonomers in ethylene and propylene polymerization.

    摘要翻译: 提供顺式和反式-1-三氟甲基-1,2,2 - 三氟-4-甲基环丁烷及其混合物。 这些组合物是具有高介电常数和低凝固点的液体,可用作液压系统的工作流体和惰性溶剂。 还提供线性二聚体4,4,5,6,6,6-六氟己烯-1和4,4,5,6,6,6-六氟己烯-2,可用作乙烯和丙烯聚合中的共聚单体。

    Anesthetic halogenated cyclobutanes
    4.
    发明授权
    Anesthetic halogenated cyclobutanes 失效
    麻醉卤代环丁烷

    公开(公告)号:US3870797A

    公开(公告)日:1975-03-11

    申请号:US39497573

    申请日:1973-09-07

    申请人: GRACE W R & CO

    摘要: Certain halogenated cyclobutanes are disclosed which possess utility as inhalation anesthetics. They are: 1-chloro-1,2,2trifluorocyclobutane, 1,4-dichloro-1,2,2-trifluorocyclobutane, 1chloro-1,2,2,4-tetrafluorocyclobutane, 1,4-dichloro-1,2,2,4tetrafluorocyclobutane, 1-chloro-2,2,3,3-tetrafluorocyclobutane, 1,2,2,3,3-pentafluorocyclobutane, 1-chloro-1,2,2,3,3pentafluorocyclobutane, 1,2,2-trifluorocyclobutane, 1-chloro2,3,3-trifluorocyclobutane, 1-chloro-2,4,4-trifluorocyclobutane, 1-bromo-1,2,2-trifluorocyclobutane, 1-bromo-2-methyl-1,4,4trifluorocyclobutane and 1-bromo-2-chloro-1,4,4trifluorocyclobutane.

    摘要翻译: 公开了一些具有作为吸入麻醉剂的作用的卤代环丁烷。 它们是:1-氯-1,2,2-三氟环丁烷,1,4-二氯-1,2,2-三氟环丁烷,1-氯-1,2,2,4-四氟环丁烷,1,4-二氯-1 ,2,2,4-四氟环丁烷,1-氯-2,2,3,3-四氟环丁烷,1,2,2,3,3-五氟环丁烷,1-氯-1,2,2,3,3-五氟环丁烷 ,1,2,2-三氟环丁烷,1-氯-2,3,3-三氟环丁烷,1-氯-2,4,4-三氟环丁烷,1-溴-1,2,2-三氟环丁烷,1-溴-2 - 甲基-1,4,4-三氟环丁烷和1-溴-2-氯-1,4,4-三氟环丁烷。