Process for producing 1,2-dialkoxy-3-fluorobenzene

    公开(公告)号:US07786330B2

    公开(公告)日:2010-08-31

    申请号:US12379553

    申请日:2009-02-24

    IPC分类号: C07C37/04 C07C41/26

    摘要: The present invention relates to a process for producing a 2-fluoro-6-halophenol as an intermediate; a process for producing a 2-alkoxy-3-fluorophenol and further a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; a second process for producing a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; and a 2-alkoxy-3-fluorophenol. The 2-fluoro-6-halophenol can be obtained using a 2-fluorophenol as a starting material and through a sulfonation reaction, a halogenation reaction, and a deprotection reaction. The 2-fluoro-6-halophenol is alkyl-etherified, and subsequently the halogen atom is converted into a hydroxyl group to obtain the 2-alkoxy-3-fluorophenol, which is further alkyl-etherified to thereby obtain the 1,2-dialkoxy-3-fluorobenzene. Alternatively, a 1,2-dialkoxy-3-fluorobenzene is also obtained by converting the halogen atom of the 2-fluoro-6-halophenol into a hydroxyl group to thereby form 3-fluorocatechol and subsequently alkyl-etherifying two hydroxyl groups thereof. The processes of the invention realize low production costs and high process yields, and thus are suitable for industrial production of a 1,2-dialkoxy-3-fluorobenzene.

    Process for producing 1,2-dialkoxy-3-fluorobenzene
    2.
    发明申请
    Process for producing 1,2-dialkoxy-3-fluorobenzene 失效
    1,2-二烷氧基-3-氟苯的制备方法

    公开(公告)号:US20090227817A1

    公开(公告)日:2009-09-10

    申请号:US12379553

    申请日:2009-02-24

    IPC分类号: C07C43/225 C07C39/26

    摘要: The present invention relates to a process for producing a 2-fluoro-6-halophenol as an intermediate; a process for producing a 2-alkoxy-3-fluorophenol and further a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; a second process for producing a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; and a 2-alkoxy-3-fluorophenol. The 2-fluoro-6-halophenol can be obtained using a 2-fluorophenol as a starting material and through a sulfonation reaction, a halogenation reaction, and a deprotection reaction. The 2-fluoro-6-halophenol is alkyl-etherified, and subsequently the halogen atom is converted into a hydroxyl group to obtain the 2-alkoxy-3-fluorophenol, which is further alkyl-etherified to thereby obtain the 1,2-dialkoxy-3-fluorobenzene. Alternatively, a 1,2-dialkoxy-3-fluorobenzene is also obtained by converting the halogen atom of the 2-fluoro-6-halophenol into a hydroxyl group to thereby form 3-fluorocatechol and subsequently alkyl-etherifying two hydroxyl groups thereof. The processes of the invention realize low production costs and high process yields, and thus are suitable for industrial production of a 1,2-dialkoxy-3-fluorobenzene.

    摘要翻译: 本发明涉及作为中间体的2-氟-6-卤代苯酚的制造方法。 从2-氟-6-卤苯酚制备2-烷氧基-3-氟苯酚和1,2-二烷氧基-3-氟苯的方法; 从2-氟-6-卤代苯酚制备1,2-二烷氧基-3-氟苯的第二种方法; 和2-烷氧基-3-氟苯酚。 2-氟-6-卤代苯酚可以使用2-氟苯酚作为原料,通过磺化反应,卤化反应和脱保护反应得到。 2-氟-6-卤代苯酚被烷基醚化,随后将卤素原子转化为羟基,得到2-烷氧基-3-氟苯酚,进一步进行烷基醚化,从而得到1,2-二烷氧基 -3-氟苯。 或者,也可以通过将2-氟-6-卤代苯酚的卤素原子转化为羟基,从而形成3-氟邻苯二酚,然后将其两个羟基烷基醚化,得到1,2-二烷氧基-3-氟苯。 本发明的方法实现了低生产成本和高工艺产率,因此适用于1,2-二烷氧基-3-氟苯的工业生产。

    Process for producing 1,2-dialkoxy-3-fluorobenzene
    3.
    发明授权
    Process for producing 1,2-dialkoxy-3-fluorobenzene 失效
    1,2-二烷氧基-3-氟苯的制备方法

    公开(公告)号:US07928268B2

    公开(公告)日:2011-04-19

    申请号:US12805138

    申请日:2010-07-14

    摘要: The present invention relates to a process for producing a 2-fluoro-6-halophenol as an intermediate; a process for producing a 2-alkoxy-3-fluorophenol and further a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; a second process for producing a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; and a 2-alkoxy-3-fluorophenol. The 2-fluoro-6-halophenol can be obtained using a 2-fluorophenol as a starting material and through a sulfonation reaction, a halogenation reaction, and a deprotection reaction. The 2-fluoro-6-halophenol is alkyl-etherified, and subsequently the halogen atom is converted into a hydroxyl group to obtain the 2-alkoxy-3-fluorophenol, which is further alkyl-etherified to thereby obtain the 1,2-dialkoxy-3-fluorobenzene. Alternatively, a 1,2-dialkoxy-3-fluorobenzene is also obtained by converting the halogen atom of the 2-fluoro-6-halophenol into a hydroxyl group to thereby form 3-fluorocatechol and subsequently alkyl-etherifying two hydroxyl groups thereof. The processes of the invention realize low production costs and high process yields, and thus are suitable for industrial production of a 1,2-dialkoxy-3-fluorobenzene.

    摘要翻译: 本发明涉及作为中间体的2-氟-6-卤代苯酚的制造方法。 从2-氟-6-卤苯酚制备2-烷氧基-3-氟苯酚和1,2-二烷氧基-3-氟苯的方法; 从2-氟-6-卤代苯酚制备1,2-二烷氧基-3-氟苯的第二种方法; 和2-烷氧基-3-氟苯酚。 2-氟-6-卤代苯酚可以使用2-氟苯酚作为原料,通过磺化反应,卤化反应和脱保护反应得到。 2-氟-6-卤代苯酚被烷基醚化,随后将卤素原子转化为羟基,得到2-烷氧基-3-氟苯酚,进一步进行烷基醚化,从而得到1,2-二烷氧基 -3-氟苯。 或者,也可以通过将2-氟-6-卤代苯酚的卤素原子转化为羟基,从而形成3-氟邻苯二酚,然后将其两个羟基烷基醚化,得到1,2-二烷氧基-3-氟苯。 本发明的方法实现了低生产成本和高工艺产率,因此适用于1,2-二烷氧基-3-氟苯的工业化生产。

    Process for producing 1,2-dialkoxy-3-fluorobenzene
    4.
    发明申请
    Process for producing 1,2-dialkoxy-3-fluorobenzene 失效
    1,2-二烷氧基-3-氟苯的制备方法

    公开(公告)号:US20100286451A1

    公开(公告)日:2010-11-11

    申请号:US12805138

    申请日:2010-07-14

    IPC分类号: C07C41/01 C07C43/23

    摘要: The present invention relates to a process for producing a 2-fluoro-6-halophenol as an intermediate; a process for producing a 2-alkoxy-3-fluorophenol and further a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; a second process for producing a 1,2-dialkoxy-3-fluorobenzene from the 2-fluoro-6-halophenol; and a 2-alkoxy-3-fluorophenol. The 2-fluoro-6-halophenol can be obtained using a 2-fluorophenol as a starting material and through a sulfonation reaction, a halogenation reaction, and a deprotection reaction. The 2-fluoro-6-halophenol is alkyl-etherified, and subsequently the halogen atom is converted into a hydroxyl group to obtain the 2-alkoxy-3-fluorophenol, which is further alkyl-etherified to thereby obtain the 1,2-dialkoxy-3-fluorobenzene. Alternatively, a 1,2-dialkoxy-3-fluorobenzene is also obtained by converting the halogen atom of the 2-fluoro-6-halophenol into a hydroxyl group to thereby form 3-fluorocatechol and subsequently alkyl-etherifying two hydroxyl groups thereof. The processes of the invention realize low production costs and high process yields, and thus are suitable for industrial production of a 1,2-dialkoxy-3-fluorobenzene.

    摘要翻译: 本发明涉及作为中间体的2-氟-6-卤代苯酚的制造方法。 从2-氟-6-卤苯酚制备2-烷氧基-3-氟苯酚和1,2-二烷氧基-3-氟苯的方法; 从2-氟-6-卤代苯酚制备1,2-二烷氧基-3-氟苯的第二种方法; 和2-烷氧基-3-氟苯酚。 2-氟-6-卤代苯酚可以使用2-氟苯酚作为原料,通过磺化反应,卤化反应和脱保护反应得到。 2-氟-6-卤代苯酚被烷基醚化,随后将卤素原子转化为羟基,得到2-烷氧基-3-氟苯酚,进一步进行烷基醚化,从而得到1,2-二烷氧基 -3-氟苯。 或者,也可以通过将2-氟-6-卤代苯酚的卤素原子转化为羟基,从而形成3-氟邻苯二酚,然后将其两个羟基烷基醚化,得到1,2-二烷氧基-3-氟苯。 本发明的方法实现了低生产成本和高工艺产率,因此适用于1,2-二烷氧基-3-氟苯的工业生产。

    APPARATUS AND METHODS FOR EXPANDING AND COLLAPSING A ROD

    公开(公告)号:US20220110303A1

    公开(公告)日:2022-04-14

    申请号:US17067711

    申请日:2020-10-11

    申请人: Wei Zhang

    发明人: Wei Zhang

    IPC分类号: A01K87/02

    摘要: Methods and apparatus for expanding a rod from a collapsed position to a formed position are disclosed. One such apparatus includes a plurality of segments for forming the body of the collapsible rod including with each segment coupled to each immediately adjacent segment of the plurality of segments. The apparatus may include a coupler for coupling each segment of the plurality of segments to each immediately adjacent segment of the plurality of segments. The coupler may stretch from a base segment to the tip of the apparatus and may be biased to apply a force to hold the plurality of segments in a formed position and to urge the plurality of segments into a formed position from a collapsed position. In the formed position, the plurality of segments may be aligned end-to-end to form a rod and in the collapsed position, the plurality of segments may be folded against each other such that cylindrical walls of each of the plurality of segments are positioned adjacent each other.

    Convertible Bullet-proof Backpack
    6.
    发明申请

    公开(公告)号:US20180295974A1

    公开(公告)日:2018-10-18

    申请号:US15731045

    申请日:2017-04-12

    申请人: Wei Zhang

    发明人: Wei Zhang

    摘要: A convertible bullet-proof backpack and vest includes a body section divided into a front portion, a middle portion, and back portion. The middle portion has a head slot opening, and the front and back portions have respective sections of bullet-proof fabric integrated therein. A zipper runs around an outer perimeter of the front and back portions. In a backpack configuration, the front portion and the back portion fold toward each other and the zipper secures the outer perimeters of the front portion and the back portion together thereby forming a hollow backpack interior between them. In a bullet-proof vest configuration, the zipper is unzipped thereby allowing a user to insert their head through the head slot opening such that the front portion hangs in front of a torso of the user and the back portion hangs behind the torso of the user.

    APPARATUS AND METHOD FOR TREATING MALE IMPOTENCE

    公开(公告)号:US20180177625A1

    公开(公告)日:2018-06-28

    申请号:US15820401

    申请日:2017-11-21

    申请人: Wei Zhang

    发明人: Wei Zhang

    IPC分类号: A61F5/41

    CPC分类号: A61F5/41 A61F2005/411

    摘要: The present invention strategically utilizes the sturdiness of thin wires enwrapped inside a thick layer of soft material such as silicone rubber which is smoother and softer than human tissue. Therefore, the device doesn't cause any damage or side effect and feels comfortable to user. The exposure of skin is 90% or higher, therefore solves the lack of sensation issue faced by prior art devices. The device is hard and yet flexible, the side walls or double bars are positioned toward ventral side of the device so that it is pleasing to the eye during use in addition to feeling good by the user.

    Electron donor-fullerene conjugated molecules for organic photovoltaic cells
    9.
    发明授权
    Electron donor-fullerene conjugated molecules for organic photovoltaic cells 有权
    用于有机光伏电池的电子供体 - 富勒烯共轭分子

    公开(公告)号:US09478746B2

    公开(公告)日:2016-10-25

    申请号:US13911351

    申请日:2013-06-06

    IPC分类号: H01L51/00 H01L51/42

    摘要: A photovoltaic cell has an active area formed electron donor-fullerene conjugated molecules. The electron donor is formed of a polymer, which is conjugated with an electron acceptor, such as fullerene. By conjugating the fullerene, such as C60, with electron donor moieties, such as that of the polymer, double channels are formed therebetween, whereby one channel provides hole transport and the other channel provides electron transport. As a result, the electronic coupling between the fullerene and the electron donor moiety leads to increased short-circuit current density (Jsc) and increased open-circuit voltage (Voc), resulting in high power conversion efficacy (PCE) in the solar cell.

    摘要翻译: 光伏电池具有形成的电子供体 - 富勒烯共轭分子的有源区。 电子给体由与电子受体(例如富勒烯)共轭的聚合物形成。 通过将诸如C60的富勒烯与诸如聚合物的电子供体部分共轭,在其间形成双通道,由此一个通道提供空穴传输,另一个通道提供电子传输。 结果,富勒烯和电子给体部分之间的电子耦合导致短路电流密度(Jsc)增加和开路电压(Voc)增加,导致太阳能电池中的高功率转换效率(PCE)。