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    Perfluoroparacyclophane and methods of synthesis and use thereof
    2.
    发明授权
    Perfluoroparacyclophane and methods of synthesis and use thereof 有权
    全氟环烷烃及其合成和使用方法

    公开(公告)号：US07652178B2

    公开(公告)日：2010-01-26

    申请号：US11710881

    申请日：2007-02-26

    申请人： William R. Dolbier, Jr. ,  Puhui Xie ,  Rakesh Kumar

    发明人： William R. Dolbier, Jr. ,  Puhui Xie ,  Rakesh Kumar

    IPC分类号： C07C21/18

    CPC分类号： C07C17/392 ,  C07C17/269 ,  C08F14/18 ,  C07C25/22 ,  C08F2/04

    摘要： A composition comprising perfluoro-[2,2]-paracyclophane dimer compound is disclosed. The synthesis reaction of the paracyclophane dimer from 1,4-bis(chlorodifluoromethane)-2,3,5,6-tetrafluorobenzene involves heating in the presence of a metal catalyst and a solvent. A perfluorinated paraxylylene coating formed from the perfluorinated paracyclophane dimer is also disclosed.

    摘要翻译： 公开了包含全氟 - [2,2] - 对环烷基二聚体化合物的组合物。 来自1,4-双（氯二氟甲烷）-2,3,5,6-四氟苯的对环烷基二聚体的合成反应涉及在金属催化剂和溶剂的存在下加热。 还公开了由全氟化对环烷基二聚体形成的全氟化对二甲苯涂层。

    METHOD FOR PRODUCING 1,4-BIS (DICHLOROMETHYL) TETRAFLUOROBENZENE
    3.
    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

    申请人： Chan-Yuan Ho ,  Tsair-Feng Lin ,  Chun-Hsu Lin ,  Shieh-Jun Wang

    发明人： Chan-Yuan Ho ,  Tsair-Feng Lin ,  Chun-Hsu Lin ,  Shieh-Jun Wang

    IPC分类号： C07C17/18

    CPC分类号： C07C17/38 ,  C07C17/18 ,  C07C17/392 ,  C07C25/13

    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。

    Perfluoroparacyclophane and methods of synthesis and use thereof
    4.
    发明申请
    Perfluoroparacyclophane and methods of synthesis and use thereof 有权
    全氟环烷烃及其合成和使用方法

    公开(公告)号：US20080207961A1

    公开(公告)日：2008-08-28

    申请号：US11710881

    申请日：2007-02-26

    申请人： William R. Dolbier ,  Puhui Xie ,  Rakesh Kumar

    发明人： William R. Dolbier ,  Puhui Xie ,  Rakesh Kumar

    IPC分类号： C07C21/18

    CPC分类号： C07C17/392 ,  C07C17/269 ,  C08F14/18 ,  C07C25/22 ,  C08F2/04

    摘要： A composition comprising perfluoro-[2,2]-paracyclophane dimer compound is disclosed. The synthesis reaction of the paracyclophane dimer from 1,4-bis(chlorodifluoromethane)-2,3,5,6-tetrafluorobenzene involves heating in the presence of a metal catalyst and a solvent. A perfluorinated paraxylylene coating formed from the perfluorinated paracyclophane dimer is also disclosed.

    摘要翻译： 公开了包含全氟 - [2,2] - 对环烷基二聚体化合物的组合物。 来自1,4-双（氯二氟甲烷）-2,3,5,6-四氟苯的对环烷基二聚体的合成反应涉及在金属催化剂和溶剂的存在下加热。 还公开了由全氟化对环烷基二聚体形成的全氟化对二甲苯涂层。

    Process for the preparation of p-bromotoluene
    5.
    发明授权
    Process for the preparation of p-bromotoluene 失效
    制备对溴甲苯的方法

    公开(公告)号：US5874659A

    公开(公告)日：1999-02-23

    申请号：US78380

    申请日：1998-05-13

    申请人： Christophe-Henri Pierre Lusson

    发明人： Christophe-Henri Pierre Lusson

    IPC分类号： C07C17/392 ,  C07C25/02 ,  C07C22/00

    CPC分类号： C07C25/02 ,  C07C17/392

    摘要： A crude bromotoluene mixture comprising at least 70 wt % of a mixture of p-bromotoluene and o-bromotoluene, and wherein the weight ratio of p-bromotoluene:o-bromotoluene is in the range of 50:50 to 99:1 is cooled to a temperature at which crystals of product enriched in p-bromotoluene are formed in a first residual mother liquor. After removing the residual mother liquor from the crystals of product enriched in p-bromotoluene, the crystals are partially melted to form a mixture of residual higher purity p-bromotoluene in the form of crystals, and a second mother liquor having a higher content of o-bromotoluene than said first residual mother liquor. This higher purity p-bromotoluene and the second mother liquor are separated from each other. The entire procedure starting with the above cooling step can be repeated as a second stage and again as a third stage each time using as the initial feed the residual higher purity p-bromotoluene that is separated from the second mother liquor of the preceding stage. Product of 99.5 wt % purity can be formed in this manner.

    摘要翻译： 包含至少70重量％的对溴甲苯和邻溴甲苯的混合物的粗溴甲苯混合物，其中对 - 溴甲苯：邻 - 溴甲苯的重量比在50:50至99:1的范围内被冷却至 在第一残留母液中形成富含对溴甲苯的产物的晶体的温度。 在从富含对甲苯磺酸的产物的晶体中除去残余的母液后，晶体部分地熔化，形成晶体形式的残留较高纯度的对溴甲苯的混合物，并且含有较高含量的第二母液 - 溴甲苯比所述第一残余母液。 这种较高纯度的对溴甲苯和第二母液彼此分离。 从上述冷却步骤开始的整个过程可以作为第二阶段重复，并且再次作为第三阶段，每次作为初始进料使用与前一阶段的第二母液分离的残留的较高纯度的对溴甲苯。 可以以这种方式形成99.5重量％的纯度的产物。

    Process for separating mono chloromethylation and di-chloromethylation product of a c10 or lower aromatic hydrocarbon
    7.
    发明授权
    Process for separating mono chloromethylation and di-chloromethylation product of a c10 or lower aromatic hydrocarbon 失效
    分离C10或更低芳烃的单氯氯丙烯和二氯甲烷化产物的方法

    公开(公告)号：US3755473A

    公开(公告)日：1973-08-28

    申请号：US3755473D

    申请日：1971-09-03

    申请人： EXXON RESEARCH ENGINEERING CO

    发明人： CIER H ,  WILDER H

    IPC分类号： C07C17/392 ,  C07C22/04 ,  C07C25/14

    CPC分类号： C07C22/04 ,  C07C17/392

    摘要： A PROCESS FOR SEPARATING THE MONO-CHLOROMETHYLATION FROM THE DI-CHLOROMETHYLATION PRODUCTS OF AROMATIC HYDROCARBONS OF C10 OR LOWER WHOSE MONO-CHLOROMETHYLATION PRODUCTS HAVE A MELTING POINT OF ABOUT 25*C. OR HIGHER. A CHLOROMETHYLATION REACTION MIXTURE IS HEATED WITH A C6 TO C9 AROMATIC HYDROCARBON IN THE LIQUID PHASE TO DISSOLVE THE MONO-CHLOROMETHYLATION AND DI-CHLOROMETHYLATION PRODUCTS AND IS THEN COOLED TO PRECIPITATE SOLID DI-CHLOROMETHYLATION PRODUCT. SOLID DI-CHLOROMETHYLATION PRODUCT IS SEPARATED FROM THE AROMATIC HYDROCARBON SOLUTION AND WASHED WITH A C5 TO C8 SATURATED HYDROCARBON IN THE LIQUID PHASE TO HIGH PURITY. THE AROMATIC HYDROCARBON SOLUTION IS VAPORIZED TO LEAVE A RESIDUE INCLUDING THE MONO-CHLOROMETHYLATED PRODUCT. THE RESIDUE IS HEATED WITH A SATURATED C5 TO C8 HYDROCARBON N THE LIQUID PHASE TO DISSOLVE MONO-CHLOROMETHYLATED PRODUCT THEREIN. THEN THE HOT SATURATED HYDROCARBON S SEPARATED FROM UNDISSOLVED SOLIDS AND IS COOLED TO PRECIPITATE SOLID MONO-CHLOROMETHYLATED PRODUCT, WHICH IS THEN RECOVERED FROM THE SATURATED HYDROCARBON.