METHOD FOR PRODUCING 1,4-BIS (DICHLOROMETHYL) TETRAFLUOROBENZENE
    2.
    发明申请
    METHOD FOR PRODUCING 1,4-BIS (DICHLOROMETHYL) TETRAFLUOROBENZENE 有权
    生产1,4-二(二氯甲基)四氢呋喃并苯的方法

    公开(公告)号:US20090171131A1

    公开(公告)日:2009-07-02

    申请号:US12285645

    申请日:2008-10-10

    IPC分类号: C07C17/18

    摘要: A method for producing 1,4-bis(dichloromethyl)tetrafluorobenzene is disclosed, which is achieved by reacting tetrafluoroterephthaldehyde, SOCl2 and organic solvents. In the synthesis of 1,4-bis(dichloromethyl)tetrafluorobenzene by adding formamides as catalyst, there are remarkable advantages which include shortening the reaction time; simplifying the synthesizing steps and raising the yield of the product.

    摘要翻译: 公开了生产1,4-双(二氯甲基)四氟苯的方法,其通过使四氟对苯二甲醛,SOCl 2和有机溶剂反应来实现。 通过加入甲酰胺作为催化剂合成1,4-双(二氯甲基)四氟苯,具有明显的优点,包括缩短反应时间; 简化合成步骤并提高产品的产率。

    Method for synthesizing TFPX
    3.
    发明授权
    Method for synthesizing TFPX 有权
    合成TFPX的方法

    公开(公告)号:US07173159B2

    公开(公告)日:2007-02-06

    申请号:US11189710

    申请日:2005-07-27

    IPC分类号: C07C22/08

    CPC分类号: C07C17/208 C07C22/08

    摘要: A method for the synthesis of TFPX (α, α, α′, α′-tetrafluoro-p-xylene) is disclosed, which comprises the following steps: (a) providing a sulpholane solution comprising TCPX (α, α, α′, α′-tetrachloro-p-xylene); (b) mixing the sulpholane solution with alkali metal fluoride, and phase transfer catalyst to form a mixture, wherein the phase transfer catalyst is quaternary phosphonium salt; and (c) heating the mixture.

    摘要翻译: 公开了一种合成TFPX(α,α,α',α'-四氟对二甲苯)的方法,其包括以下步骤:(a)提供包含TCPX(α,α,α' α'-四氯对二甲苯); (b)将环丁砜溶液与碱金属氟化物和相转移催化剂混合以形成混合物,其中相转移催化剂是季鏻盐; 和(c)加热混合物。

    Method for producing 1,4-bis (dichloromethyl) tetrafluorobenzene
    4.
    发明授权
    Method for producing 1,4-bis (dichloromethyl) tetrafluorobenzene 有权
    1,4-二(二氯甲基)四氟苯的制备方法

    公开(公告)号:US07544847B1

    公开(公告)日:2009-06-09

    申请号:US12285645

    申请日:2008-10-10

    IPC分类号: C07C17/00

    摘要: A method for producing 1,4-bis(dichloromethyl)tetrafluorobenzene is disclosed, which is achieved by reacting tetrafluoroterephthaldehyde, SOCl2 and organic solvents. In the synthesis of 1,4-bis(dichloromethyl)-tetrafluorobenzene by adding formamides as catalyst, there are remarkable advantages which include shortening the reaction time; simplifying the synthesizing steps and raising the yield of the product.

    摘要翻译: 公开了生产1,4-双(二氯甲基)四氟苯的方法,其通过使四氟对苯二甲醛,SOCl 2和有机溶剂反应来实现。 通过加入甲酰胺作为催化剂合成1,4-双(二氯甲基) - 四氟苯,有明显的优点,包括缩短反应时间; 简化合成步骤并提高产品的产率。

    Method for synthesizing TFPX
    5.
    发明申请
    Method for synthesizing TFPX 有权
    合成TFPX的方法

    公开(公告)号:US20060211895A1

    公开(公告)日:2006-09-21

    申请号:US11189710

    申请日:2005-07-27

    IPC分类号: C07C25/13

    CPC分类号: C07C17/208 C07C22/08

    摘要: A method for the synthesis of TFPX (α,α,α′,α′-tetrafluoro-p-xylene) is disclosed, which comprises the following steps: (a) providing a sulpholane solution comprising TCPX (α,α,α′,α′-tetrachloro-p-xylene); (b) mixing the sulpholane solution with alkali metal fluoride, and phase transfer catalyst to form a mixture, wherein the phase transfer catalyst is quaternary phosphonium salt; and (c) heating the mixture.

    摘要翻译: 公开了一种合成TFPX(α,α,α',α'-四氟对二甲苯)的方法,其包括以下步骤:(a)提供包含TCPX(α,α,α' α'-四氯对二甲苯); (b)将环丁砜溶液与碱金属氟化物和相转移催化剂混合以形成混合物,其中相转移催化剂是季鏻盐; 和(c)加热混合物。