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    Process for preparing fluorobenzene by direct fluorination
    1.
    发明授权
    Process for preparing fluorobenzene by direct fluorination 有权

    公开(公告)号：US11261144B2

    公开(公告)日：2022-03-01

    申请号：US16907190

    申请日：2020-06-20

    Applicant: Fujian Yongjing Technology Co., Ltd

    Inventor： Changyue Zhou ,  Hongjun Du ,  Wenting Wu

    IPC: C07C17/02

    Abstract: The invention relates to a use of a fluorination gas, wherein the elemental fluorine (F2) is present in a high concentration, for example, in a concentration of elemental fluorine (F2), especially of equal to much higher than 15% or even 20% by volume (i.e., at least 15% or even 20% by volume), and to a process for the manufacture of a fluorinated benzene by direct fluorination employing a fluorination gas, wherein the elemental fluorine (F2) is present in a high concentration. The process of the invention is directed to the manufacture of a fluorinated benzene by direct fluorination. Especially the invention is of interest in the preparation of fluorinated benzene, final products and as well intermediates, for usage in agro-, pharma-, electronics-, catalyst, solvent and other functional chemical applications. The fluorination process of the invention may be performed batch-wise or in a continuous manner. If the process of the invention is performed batch-wise, a column (tower) reactor may be used. If the process of the invention is continuous a microreactor may be used. The invention is characterized in that the starting compound is benzene, and the fluorinated compound produced is a fluorinated benzene, preferably monofluorobenzene.

    Process for Friedel-Crafts reaction, and catalyst therefore
    2.
    发明授权
    Process for Friedel-Crafts reaction, and catalyst therefore 有权

    公开(公告)号：US11465958B2

    公开(公告)日：2022-10-11

    申请号：US16517546

    申请日：2019-07-20

    Applicant: Fujian Yongjing Technology Co., Ltd.

    Inventor： Hongjun Du ,  Wenting Wu

    IPC: C07C45/46 ,  B01J27/08 ,  C07C17/269 ,  C07C201/12 ,  C07C22/08 ,  C07C49/813 ,  C07C205/12

    Abstract: The invention relates to a new process for the manufacture of fluoroaryl compounds and derivatives thereof, in particular of fluorobenzenes and derivatives thereof, and especially wherein said manufacture relates to an environmentally friendly production of the said compounds. Thus, the present invention overcomes the disadvantages of the prior art processes, and in a surprisingly simple and beneficial manner, and as compared to the prior art processes, in particular, the invention provides a more efficient and energy saving processes, and also provides a more environmentally friendly process, for the manufacture of nuclear fluorinated aromatics, and preferably of nuclear fluorinated fluorobenzenes. Accordingly, in one aspect of the invention, an industrially beneficial process for preparing fluorobenzenes from halobenzene precursors using HF to form hydrogen halide is provided by the present invention. A beneficial and surprisingly simple use of chlorobenzene as an industrially interesting starting material in the manufacture of fluorobenzene is provided.

    Process for the manufacture of pyrazoles or pyrimidones
    3.
    发明授权
    Process for the manufacture of pyrazoles or pyrimidones 有权

    公开(公告)号：US11299463B2

    公开(公告)日：2022-04-12

    申请号：US16517542

    申请日：2019-07-20

    Applicant: Fujian Yongjing Technology Co., Ltd.

    Inventor： Hongjun Du ,  Wenting Wu

    IPC: C07D231/20 ,  C07D231/14 ,  C07D239/47

    Abstract: In one aspect the invention relates to the use of an amine compound in a process for the manufacture of a fluorinated or non-fluorinated 5- or 6-membered heterocyclic compound containing two nitrogen atoms in the ring system of the said compound, preferably of pyrazoles or pyrimidones. The invention also relates to a process for the manufacture of pyrazoles or pyrimidones, which may be fluorinated or may not be fluorinated (non-fluorinated). Especially, the invention relates to process for the manufacture of fluorinated pyrazoles or pyrimidones, and in particular the invention relates to process for the manufacture of such fluorinated pyrazoles or pyrimidones, which each are very important building blocks for pharmaceutical and agro-applications. For example, the fungicides are Bixafen, Fluxapyroxad, Fluindapyr, Sedaxane, Isopyrazam and Benzovindifupyr strongly depend on such fluorinated pyrazoles as key building blocks, or for Florasulam and Clorasulam-methyl (Diclosulam), respectively.

    Process for preparing fluorobenzene and benzoic acid hypofluorite
    4.
    发明授权
    Process for preparing fluorobenzene and benzoic acid hypofluorite 有权

    公开(公告)号：US11261147B2

    公开(公告)日：2022-03-01

    申请号：US16907191

    申请日：2020-06-20

    Applicant: Fujian Yongjing Technology Co., Ltd

    Inventor： Changyue Zhou ,  Hongjun Du ,  Wenting Wu

    IPC: C07C17/363 ,  B01J4/00 ,  B01J19/00 ,  B01J19/24 ,  B01J19/32 ,  C07C25/13

    Abstract: The invention relates to a use of a fluorination gas, the elemental fluorine (F2) is preferably present in a high concentration, e.g. in a concentration of elemental fluorine (F2), especially of equal to much higher than 15% or even 20% by volume (i.e., at least 15% or even 20% by volume), and to a process for the manufacture of a fluorinated benzene starting from benzoic acid by direct fluorination employing a fluorination gas. The elemental fluorine (F2) is preferably present in high concentration, and subsequent decarboxylation of the benzoic acid hypofluorite obtained by direct fluorination. The process of the invention is also directed to the manufacture of benzoic acid hypofluorite by direct fluorination of benzoic acid. Especially the invention is of interest in the preparation of fluorinatedbenzene, final products and as well intermediates, for usage in agro-, pharma-, electronics-, catalyst, solvent and other functional chemical applications.

    Process for the manufacture of 1,1,1-trifluoro-2-chloroethaneand/or trifluoroethylamine
    5.
    发明授权
    Process for the manufacture of 1,1,1-trifluoro-2-chloroethaneand/or trifluoroethylamine 有权

    公开(公告)号：US11046637B2

    公开(公告)日：2021-06-29

    申请号：US16517547

    申请日：2019-07-20

    Applicant: Fujian Yongjing Technology Co., Ltd.

    Inventor： Hongjun Du ,  Wenting Wu

    IPC: C07C209/08 ,  C07C211/15 ,  B01J27/06

    Abstract: The invention relates to a new process for the manufacture of fluoroaryl compounds and derivatives thereof, in particular of fluorobenzenes and derivatives thereof, and especially wherein said manufacture relates to an environmentally friendly production of the said compounds. Thus, the present invention overcomes the disadvantages of the prior art processes, and in a surprisingly simple and beneficial manner, and as compared to the prior art processes, in particular, the invention provides a more efficient and energy saving processes, and also provides a more environmentally friendly process, for the manufacture of nuclear fluorinated aromatics, and preferably of nuclear fluorinated fluorobenzenes. Accordingly, in one aspect of the invention, an industrially beneficial process for preparing fluorobenzenes from halobenzene precursors using HF to form hydrogen halide is provided by the present invention. A beneficial and surprisingly simple use of chlorobenzene as an industrially interesting starting material in the manufacture of fluorobenzene is provided.

    Process of fluorinating inorganic or organic compounds by direct fluorination
    6.
    发明授权
    Process of fluorinating inorganic or organic compounds by direct fluorination 有权

    公开(公告)号：US11447446B2

    公开(公告)日：2022-09-20

    申请号：US16907188

    申请日：2020-06-20

    Applicant: Fujian Yongjing Technology Co., Ltd

    Inventor： Changyue Zhou ,  Hongjun Du ,  Wenting Wu

    IPC: C07C253/30 ,  C01B21/083 ,  C07C67/307 ,  C07C201/12 ,  C07C303/22 ,  C07D317/42 ,  C07B39/00

    Abstract: The invention relates to a use of a fluorination gas, and the elemental fluorine (F2) is present in a high concentration, for example, in a concentration of elemental fluorine (F2), especially of equal to much higher than 15 or even 20% by volume, and to a process for the manufacture of a fluorinated compound by direct fluorination employing a fluorination gas, wherein the elemental fluorine (F2) is present in a high concentration. The process of the invention is directed to the manufacture of a fluorinated compound, for the exception of fluorinated benzene, by direct fluorination. Especially the invention is of interest in the preparation of fluorinated organic compounds, final products and as well intermediates, for usage in agro-, pharma-, electronics-, catalyst, solvent and other functional chemical applications. The fluorination process of the invention may be performed batch-wise or in a continuous manner.

    Process for the manufacture of trifluoroethylamine
    9.
    发明授权
    Process for the manufacture of trifluoroethylamine 有权

    公开(公告)号：US11155515B2

    公开(公告)日：2021-10-26

    申请号：US16907187

    申请日：2020-06-20

    Applicant: Fujian Yongjing Technology Co., Ltd.

    Inventor： Hongjun Du ,  Wenting Wu

    IPC: C07C209/08 ,  C07C211/15 ,  B01J27/06

    Abstract: The invention relates to a new process for the manufacture of fluoroaryl compounds and derivatives thereof, in particular of fluorobenzenes and derivatives thereof, and especially wherein said manufacture relates to an environmentally friendly production of the said compounds. Thus, the present invention overcomes the disadvantages of the prior art processes, and in a surprisingly simple and beneficial manner, and as compared to the prior art processes, in particular, the invention provides a more efficient and energy saving processes, and also provides a more environmentally friendly process, for the manufacture of nuclear fluorinated aromatics, and preferably of nuclear fluorinated fluorobenzenes. Accordingly, in one aspect of the invention, an industrially beneficial process for preparing fluorobenzenes from halobenzene precursors using HF to form hydrogen halide is provided by the present invention. A beneficial and surprisingly simple use of chlorobenzene as an industrially interesting starting material in the manufacture of fluorobenzene is provided.

    Process for manufacture of 1,1,1-trifluoro-2-chloroethane
    10.
    发明授权
    Process for manufacture of 1,1,1-trifluoro-2-chloroethane 有权

    公开(公告)号：US11148994B2

    公开(公告)日：2021-10-19

    申请号：US16907185

    申请日：2020-06-20

    Applicant: Fujian Yongjing Technology Co., Ltd

    Inventor： Hongjun Du ,  Wenting Wu

    IPC: C07C209/08 ,  C07C211/15 ,  B01J27/06

    Abstract: The invention relates to a new process for the manufacture of fluoroaryl compounds and derivatives thereof, in particular of fluorobenzenes and derivatives thereof, and especially wherein said manufacture relates to an environmentally friendly production of the said compounds. Thus, the present invention overcomes the disadvantages of the prior art processes, and in a surprisingly simple and beneficial manner, and as compared to the prior art processes, in particular, the invention provides a more efficient and energy saving processes, and also provides a more environmentally friendly process, for the manufacture of nuclear fluorinated aromatics, and preferably of nuclear fluorinated fluorobenzenes. Accordingly, in one aspect of the invention, an industrially beneficial process for preparing fluorobenzenes from halobenzene precursors using HF to form hydrogen halide is provided by the present invention. A beneficial and surprisingly simple use of chlorobenzene as an industrially interesting starting material in the manufacture of fluorobenzene is provided.

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