METHODS FOR PRODUCING HALOGENATED ALKENE COMPOUND AND FLUORINATED ALKYNE COMPOUND

    公开(公告)号:US20230242466A1

    公开(公告)日:2023-08-03

    申请号:US18134219

    申请日:2023-04-13

    CPC classification number: C07C17/25 C07C17/087 C07C21/18 C07C21/22

    Abstract: A halogenated alkene compound and a fluorinated alkyne compound are obtained at a high conversion rate and high selectivity by employing any of the following methods (1) to (4):



    (1) a halogenated butane compound represented by CX1X2X3CHX4CFHCX5X6X7, wherein X1, X2, X3, X4, X5, X6, and X7 are the same or different and each is a halogen atom, to a dehydrofluorination reaction;
    (2) a halogenated butene compound represented by CX1X2X3CX4═CHCX5X6X7, wherein X1, X2, X3, X4, X5, X6, and X7 are as defined above, to a dehydrohalogenation reaction;
    (3) a halogenated alkane compound represented by CHX8A1CHX9A2, wherein A1 and A2 are each a fluorine atom or a perfluoroalkyl group, and X8 and X9 are the same or different and each is a halogen atom, to a dehydrohalogenation reaction in the presence of a catalyst in a gas phase; and
    (4) a halogenated alkene compound represented by CX8A1=CHA2, wherein A1, A2, and X8 are as defined above, to a dehydrohalogenation reaction in the presence of a catalyst.

    PROCESS FOR CIS 1,1,1,4,4,4-HEXAFLUORO-2-BUTENE
    7.
    发明申请
    PROCESS FOR CIS 1,1,1,4,4,4-HEXAFLUORO-2-BUTENE 有权
    CIS 1,1,1,4,4,4-HEXAFLOROR-2-BUTENE的方法

    公开(公告)号:US20110288346A1

    公开(公告)日:2011-11-24

    申请号:US13110979

    申请日:2011-05-19

    Abstract: Disclosed is a process for preparing cis-1,1,1,4,4,4-hexafluoropropene comprising the steps of (a) reacting CCl4 with a compound having the formula CF3CX═CXH, where each X is independently halogen or hydrogen, to form a compound having the formula CF3CXClCXHCCl3; (b) fluorinating the compound formed in step (a) to form a compound having the formula CF3CXHCXHCF3; (c) converting the compound formed in step (b) by a reaction selected from the group consisting of dehydrohalogenation, dehalogenation and both reactions, to form a compound having the formula CF3C≡CCF3; and (d) catalytically reducing the compound formed in step (c) with hydrogen to form the compound having the formula:

    Abstract translation: 公开了一种制备顺式-1,1,1,4,4,4-六氟丙烯的方法,包括以下步骤:(a)使CCl4与具有式CF 3 C X = C X H的化合物反应,其中每个X独立地为卤素或氢, 形成式CF3CXClCXHCCl3的化合物; (b)氟化步骤(a)中形成的化合物以形成具有式CF 3 C XHCXHCF 3的化合物; (c)通过选自脱卤化氢,脱卤和两种反应的反应转化步骤(b)中形成的化合物,以形成具有式CF 3C≡CCF3的化合物; 和(d)用氢气将步骤(c)中形成的化合物催化还原以形成具有下式的化合物:

    Process for producing perfluoroalkyne compound
    8.
    发明授权
    Process for producing perfluoroalkyne compound 有权
    生产全氟炔化合物的方法

    公开(公告)号:US07951981B2

    公开(公告)日:2011-05-31

    申请号:US12225529

    申请日:2007-03-30

    Inventor: Tatsuya Sugimoto

    Abstract: A process for producing a perfluoroalkyne compound includes an addition reaction step of adding Cl2, Br2, or I2 to a compound shown by the formula (1) CH3C≡CR1 to obtain a compound shown by the formula (2) CH3CX2CX2R1, a fluorination reaction step of reacting the compound shown by the formula (2) with fluorine gas to obtain a compound shown by the formula (3) CF3CX2CX2R2, and a dehalogenation reaction step of contacting the compound shown by the formula (3) with a metal or an organometallic compound to obtain a perfluoroalkyne compound shown by the formula (4) CF3C≡CR2. According to the present invention, a perfluoroalkyne compound can be produced at high productivity and high yield using starting raw materials which are environmentally friendly and industrially available. In the above formulas, R1 represents a methyl group or an ethyl group, X represents Cl, Br, or I, and R2 represents a trifluoromethyl group or a pentafluoroethyl group.

    Abstract translation: 一种全氟炔化合物的制造方法,包括向式(1)所示的化合物(CH 3C≡CR1)表示的化合物中加入Cl 2,Br 2或I 2的加成反应工序,得到式(2)所示的化合物,CH 3 C X 2 C X 2 R 1,氟化反应步骤 使式(2)所示的化合物与氟气反应,得到式(3)CF 3 C X 2 C X 2 R 2所示的化合物和使式(3)所示的化合物与金属或有机金属化合物接触的脱卤反应步骤 得到式(4)CF 3C≡CR2所示的全氟炔化合物。 根据本发明,可以以环保和工业上可获得的起始原料,以高生产率和高产率生产全氟炔化合物。 在上式中,R 1表示甲基或乙基,X表示Cl,Br或I,R 2表示三氟甲基或五氟乙基。

    Method for Producing 3,3,3-Trifluoropropyne
    9.
    发明申请
    Method for Producing 3,3,3-Trifluoropropyne 有权
    生产3,3,3-三氟丙炔的方法

    公开(公告)号:US20100145112A1

    公开(公告)日:2010-06-10

    申请号:US12596321

    申请日:2008-04-04

    CPC classification number: C07C17/25 C07C21/22

    Abstract: Disclosed is a method for producing 3,3,3-trifluoropropyne, which is characterized in that a base is reacted with (Z)-1-halogeno-3,3,3-trifluoropropene represented by formula [1]. It is possible by this production method to obtain 3,3,3-trifluoropropyne with high yield. Furthermore, since waste disposal is also easy, it is a production method that is industrially advantageous.

    Abstract translation: 公开了3,3,3-三氟丙炔的制造方法,其特征在于使碱与式(1)所示的(Z)-1-卤代-3,3,3-三氟丙烯反应。 可以通过该制造方法以高收率得到3,3,3-三氟丙炔。 此外,由于废物处理也容易,因此是在工业上有利的生产方法。

Patent Agency Ranking