知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

111 条记录 (耗时 0.022 秒)

    METHOD FOR PREPARING A POLYFLUORINATED COMPOUND
    1.
    发明申请
    METHOD FOR PREPARING A POLYFLUORINATED COMPOUND 有权

    公开(公告)号：US20210163408A1

    公开(公告)日：2021-06-03

    申请号：US17059920

    申请日：2019-05-29

    申请人： ETH ZURICH

    发明人： Cody Ross PITTS ,  Nico SANTSCHI ,  Antonio TOGNI

    IPC分类号： C07C381/00 ,  C07C391/02 ,  C07C395/00 ,  C07C17/013 ,  C07C25/13 ,  C01B17/45 ,  C07D213/803 ,  C07D209/48 ,  C07D253/07 ,  C07D239/30 ,  C07D213/89 ,  C07D231/56 ,  C07D317/16 ,  C07C67/307 ,  C07C201/12 ,  C07C41/22

    摘要： A process for preparing a polyfluorinated compound of formula Ar—R1 (I), wherein Ar—R1 (I) is an aromatic ring system wherein R1 is selected from the group consisting of SF4Cl, SF3, SF2CF3, TeF5, TeF4CF3, SeF3, IF2, SeF2CF3, and IF4, X2 is N or CR2, X3 is N or CR3, X4 is N or CR4, X5 is N or CR5, X6 is N or CR6, and the total number of nitrogen atoms in the aromatic ring system is between 0 and 3, wherein R2, R3, R4, R5 and R6 are independently selected from the group consisting of hydrogen, fluoro, chloro, bromo, nitro, trifluoromethyl, 2,2,2-trifluoroethyl, pentafluorosulfanyl, phthalimido, azido, benzyloxy, trifluoromethoxy, 2,2,2-trifluoroethoxy, methoxycarbonyl, ethoxycarbonyl, methylcarbonyl, ethylcarbonyl, acetoxy, t-butyl, phenylcarbonyl, benzylcarbonyl, 3-trifluoromethylphenyl, phenylsulfonyl, methylsulfonyl, chlorophenyl, methyldoxolonyl, methyl, isopropyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, fluoromethyl, fluoroethyl and phenyl.

    Method for purifying 2-fluorobutane
    5.
    发明授权
    Method for purifying 2-fluorobutane 有权
    2-氟丁烷纯化方法

    公开(公告)号：US09416075B2

    公开(公告)日：2016-08-16

    申请号：US14904486

    申请日：2014-07-16

    申请人： ZEON CORPORATION

    发明人： Tatsuya Sugimoto

    IPC分类号： C07C17/395 ,  C07C17/383 ,  C07C17/02 ,  C07C17/013

    CPC分类号： C07C17/395 ,  C07C17/013 ,  C07C17/02 ,  C07C17/383 ,  C07C19/08

    摘要： The present invention is a method for 2-fluorobutane to obtain highly purified 2-fluorobutane through a process comprising a step for: bringing crude 2-fluorobutane that includes 5 to 50 wt % of butene into contact with a brominating agent that can form a bromonium ion in an aprotic polar solvent in the presence of water or an alcohol having up to 4 carbon atoms; converting the butene into compounds having a boiling point higher than that of 2-fluorobutane, then recovering 2-fluorbutane from the reaction solution; and purifying the recovered 2-fluorabutane by distillation.

    摘要翻译： 本发明是2-氟丁烷获得高纯度2-氟丁烷的方法，该方法包括以下步骤：将含有5至50重量％丁烯的粗2-氟丁烷与可形成溴的溴化剂接触 在非质子极性溶剂中，在水或具有至多4个碳原子的醇的存在下， 将丁烯转化成沸点高于2-氟丁烷的化合物，然后从反应溶液中回收2-氟丁烷; 并通过蒸馏纯化回收的2-氟戊烷。

    PROCESS FOR THE PRODUCTION OF CHLORINATED PROPENES
    6.
    发明申请
    PROCESS FOR THE PRODUCTION OF CHLORINATED PROPENES 有权
    生产氯化丙烯的方法

    公开(公告)号：US20150344386A1

    公开(公告)日：2015-12-03

    申请号：US14653503

    申请日：2013-12-18

    申请人： DOW GLOBAL TECHNOLOGIES, LLC

    发明人： MAX M. TIRTOWIDJOJO ,  DAVID S. LAITAR ,  BARRY B. FISH ,  MATTHEW L. GRANDBOIS

    IPC分类号： C07C17/013 ,  C07C17/21 ,  C07C17/06

    CPC分类号： C07C17/013 ,  C07C17/04 ,  C07C17/06 ,  C07C17/10 ,  C07C17/21 ,  C07C17/25 ,  C07C19/01 ,  C07C21/04

    摘要： Processes for the production of chlorinated propenes are provided. The processes make use of 1,2-dichloropropane as a starting material and subject a feedstream comprising the same to an ionic chlorination process. At least a portion of any tri- and tetrachlorinated propanes not amenable to ionic chlorination conditions are removed from the ionic chlorination product stream, or, are subjected to chemical base dehydrochlorination step. In this way, recycle of intermediates not amenable to ionic chlorination reactions is reduced or avoided, as is the buildup of these intermediates within the process. Selectivity and, in some embodiments, yield of the process is thus enhanced.

    摘要翻译： 提供了生产氯化丙烯的方法。 该方法利用1,2-二氯丙烷作为起始原料，并将含有该二氯丙烷的原料流进行离子氯化处理。 任何不适于离子氯化条件的任何三氯化四氯化丙烷的至少一部分从离子氯化产物流中除去，或者进行化学碱脱氯化氢步骤。 以这种方式，减少或避免不适于离子氯化反应的中间体的再循环，以及这些中间体在该方法中的积累。 因此，在一些实施方案中，选择性，因此增强了该方法的产率。

    Process for the production of chlorinated alkanes
    7.
    发明授权
    Process for the production of chlorinated alkanes 有权
    氯化烷烃生产工艺

    公开(公告)号：US09199899B2

    公开(公告)日：2015-12-01

    申请号：US14362249

    申请日：2012-11-30

    申请人： Matthew L. Grandbois ,  Xiaoyun Chen ,  William J. Kruper, Jr.

    发明人： Matthew L. Grandbois ,  Xiaoyun Chen ,  William J. Kruper, Jr.

    IPC分类号： C07C17/013 ,  C07C17/10

    CPC分类号： C07C17/013 ,  C07C17/10 ,  C07C19/01

    摘要： Processes for the production of chlorinated alkanes are provided. The present processes comprise catalyzing the addition of at least two chlorine atoms to an alkane and/or alkene with a catalyst system comprising one or more nonmetallic iodides and/or lower than conventional levels of elemental iodine and at least one Lewis acid. The present processes make use of sulfuryl chloride, or chlorine gas, as a chlorinating agent.

    摘要翻译： 提供了生产氯代烷烃的方法。 本发明的方法包括催化使用包含一种或多种非金属碘化物和/或低于常规水平的元素碘和至少一种路易斯酸的催化剂体系向烷烃和/或烯烃中加入至少两个氯原子。 本方法使用磺酰氯或氯气作为氯化剂。

    PROCESS FOR THE PRODUCTION OF CHLORINATED PROPENES
    8.
    发明申请
    PROCESS FOR THE PRODUCTION OF CHLORINATED PROPENES 有权
    生产氯化丙烯的方法

    公开(公告)号：US20150239807A1

    公开(公告)日：2015-08-27

    申请号：US14429248

    申请日：2013-09-13

    申请人： DOW GLOBAL TECHNOLOGIES LLC

    发明人： Max M. Tirtowidjojo ,  John D. Myers

    IPC分类号： C07C17/013 ,  C07C17/04 ,  C07C17/38

    CPC分类号： C07C17/013 ,  C07C17/04 ,  C07C17/10 ,  C07C17/25 ,  C07C17/38 ,  C07C21/04 ,  C07C19/01

    摘要： Processes for the production of chlorinated propenes are provided. The present processes make use of 1,2-dichloropropane, a by-product in the production of chlorohydrin, as a low cost starting material, alone or in combination with 1,2,3-trichloropropane. At least one chlorination step is conducted in the gas phase. The present processes can also generate anhydrous HCI as a byproduct that can be removed from the process and used as a feedstock for other processes, providing further time and cost savings.

    摘要翻译： 提供了生产氯化丙烯的方法。 本发明方法利用1,2-二氯丙烷作为生产氯代醇中的副产物，作为低成本原料，单独使用或与1,2,3-三氯丙烷组合使用。 在气相中进行至少一个氯化步骤。 本方法还可以产生无水HCl作为副产物，其可以从该方法中除去并用作其它方法的原料，从而进一步节省时间和成本。