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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.
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公开(公告)号：US20220144729A1
公开(公告)日：2022-05-12
申请号：US17353794
申请日：2021-06-21
Applicant: Fujian Yongjing Technology Co., Ltd
Inventor： Changyue Zhou , Yong Wang
IPC: C07C17/281 , B01J23/26 , B01J27/12
Abstract: The present invention pertains to a novel process of manufacturing the compound 2,3,3,3-tetrafluoropropene (1234yf). The compound 1234yf is the newest refrigerant with zero OPD (Ozone Depleting Potential) and zero GWP (Global Warming Potential). Thus, the invention relates to a process, involving a carbene generation route, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), and optionally of the compound 2-chloro-1,1,1-trifluoropropene (1233xf) via carbene route and compound 243db (2,3-dichloro-1,1,1-trifluoropropane). The invention also relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), wherein the compound 243db (2,3-dichloro-1,1,1-trifluoropropane) serves as a starting material, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf). Further, the invention relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), and of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), the initial starting materials are selected from the group consisting of com-pound 123 (2,2-dichloro-1,1,1-trifluoroethane), compound 124 (2-chloro-1,1,1,2-tetrafluoroethane), and compound 125 (pentafluoroethane).
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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.
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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
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.
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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.
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Patent Agency Ranking
公开(公告)号：US20210061734A1
公开(公告)日：2021-03-04
申请号：US16923099
申请日：2020-07-08
Applicant: Fujian Yongjing Technology Co., Ltd
Inventor： Changyue Zhou , Yong Wang
IPC: C07C17/20 , B01J23/26 , B01J23/86 , B01J27/138 , B01J27/10 , B01J27/128 , B01J27/125 , B01J21/18
Abstract: The invention relates to process for the manufacture or preparation of fluorinated benzene, in particular monofluorobenzene, in a vapor-phase fluorination process. The process of the invention, for example, can comprise a batch or continuous manufacture or preparation of fluorinated benzene, in particular monofluorobenzene, using hydrogen fluoride (HF) in gas phase as fluorination gas. Also, in this process of the invention, for example, fluorination catalysts are involved.
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公开(公告)号：US11629110B2
公开(公告)日：2023-04-18
申请号：US17353799
申请日：2021-06-21
Applicant: Fujian Yongjing Technology Co., Ltd
Inventor： Changyue Zhou , Yong Wang
IPC: C07C17/269 , C07C17/281 , B01J23/26 , B01J27/12 , B01J31/02 , C07C17/25
Abstract: The present invention pertains to a novel process of manufacturing the compound 2,3,3,3-tetrafluoropropene (1234yf). The compound 1234yf is the newest refrigerant with zero OPD (Ozone Depleting Potential) and zero GWP (Global Warming Potential). Thus, the invention relates to a process, involving a carbene generation route, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), and optionally of the compound 2-chloro-1,1,1-trifluoropropene (1233xf) via carbene route and compound 243db (2,3-dichloro-1,1,1-trifluoropropane). The invention also relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), wherein the compound 243db (2,3-dichloro-1,1,1-trifluoropropane) serves as a starting material, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf). Further, the invention relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), and of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), the initial starting materials are selected from the group consisting of com-pound 123 (2,2-dichloro-1,1,1-trifluoroethane), compound 124 (2-chloro-1,1,1,2-tetrafluoroethane), and compound 125 (pentafluoroethane).
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公开(公告)号：US11420917B2
公开(公告)日：2022-08-23
申请号：US16517544
申请日：2019-07-20
Applicant: Fujian Yongjing Technology Co., Ltd.
Inventor： Hongjun Du , Wenting Wu
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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公开(公告)号：US20220144731A1
公开(公告)日：2022-05-12
申请号：US17353809
申请日：2021-06-22
Applicant: Fujian Yongjing Technology Co., Ltd
Inventor： Changyue Zhou , Yong Wang
IPC: C07C17/281 , B01J23/26 , B01J27/12
Abstract: The present invention pertains to a novel process of manufacturing the compound 2,3,3,3-tetrafluoropropene (1234yf). The compound 1234yf is the newest refrigerant with zero OPD (Ozone Depleting Potential) and zero GWP (Global Warming Potential). Thus, the invention relates to a process, involving a carbene generation route, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), and optionally of the compound 2-chloro-1,1,1-trifluoropropene (1233xf) via carbene route and compound 243db (2,3-dichloro-1,1,1-trifluoropropane). The invention also relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), wherein the compound 243db (2,3-dichloro-1,1,1-trifluoropropane) serves as a starting material, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf). Further, the invention relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), and of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), the initial starting materials are selected from the group consisting of com-pound 123 (2,2-dichloro-1,1,1-trifluoroethane), compound 124 (2-chloro-1,1,1,2-tetrafluoroethane), and compound 125 (pentafluoroethane).
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公开(公告)号：US20220144730A1
公开(公告)日：2022-05-12
申请号：US17353799
申请日：2021-06-21
Applicant: Fujian Yongjing Technology Co., Ltd
Inventor： Changyue Zhou , Yong Wang
IPC: C07C17/281 , B01J23/26 , B01J27/12
Abstract: The present invention pertains to a novel process of manufacturing the compound 2,3,3,3-tetrafluoropropene (1234yf). The compound 1234yf is the newest refrigerant with zero OPD (Ozone Depleting Potential) and zero GWP (Global Warming Potential). Thus, the invention relates to a process, involving a carbene generation route, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), and optionally of the compound 2-chloro-1,1,1-trifluoropropene (1233xf) via carbene route and compound 243db (2,3-dichloro-1,1,1-trifluoropropane). The invention also relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), wherein the compound 243db (2,3-dichloro-1,1,1-trifluoropropane) serves as a starting material, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf). Further, the invention relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), and of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), the initial starting materials are selected from the group consisting of com-pound 123 (2,2-dichloro-1,1,1-trifluoroethane), compound 124 (2-chloro-1,1,1,2-tetrafluoroethane), and compound 125 (pentafluoroethane).
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