2,3,5,6-Tetrabromophenol | 1745-99-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 2,3,5,6-Tetrabromophenol
• 英文别名: 2,3,5,6-Tetrabrom-phenol
• CAS: 1745-99-9
• 化学式: C₆H₂Br₄O
• 分子量: 409.697
• InChiKey: JZLBSZQDKQGACE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.4
• 重原子数：
  11
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  2,3,5,6-tetrabromo-4-hydroxybenzoic acid 在 N,N-二甲基苯胺 作用下， 生成 2,3,5,6-Tetrabromophenol
  参考文献：
  名称：

  芳香化合物溴化过程中乙酰氨基和硝基的置换

  摘要：

  发现4-乙酰氨基-3-硝基苯甲醚的溴化得到2,3,4,5-四溴苯甲醚。建议这种显着反应的可能机制。

  DOI：

  10.1039/j39660000997

文献信息

• Process for producing compound, catalyst component for addition polymerization, process for producing catalyst for addition polymerization, and process for producing addition polymer
  申请人：Oshima Hideki

  公开号：US20050222351A1

  公开（公告）日：2005-10-06

  There are provided (1) a process for producing a compound, which comprises the step of contacting a compound (A) defined by the formula, M 1 L 1 3 , a compound (B) defined by the formula, R 1 t-1 TH, and a compound (C) defined by the formula, R 2 t-2 TH 2 ; (2) a catalyst component for addition polymerization, which comprises a compound produced by said process; (3) a process for producing a polymerization catalyst, which comprises the step of contacting said catalyst component with a transition metal compound and an optional organoaluminum compound; and (4) a process for producing an addition polymer, which comprises the step of addition polymerizing an addition polymerizable monomer in the presence of a catalyst produced by said process.

  提供以下内容：（1）生产化合物的过程，包括将由M1L13公式定义的化合物（A）、由R1t-1TH公式定义的化合物（B）和由R2t-2TH2公式定义的化合物（C）接触的步骤；（2）用于加成聚合的催化剂组分，包括通过上述过程产生的化合物；（3）生产聚合催化剂的过程，包括将催化剂组分与过渡金属化合物和可选的有机铝化合物接触的步骤；（4）生产加成聚合物的过程，包括在上述过程产生的催化剂存在下加成聚合可聚合单体的步骤。
• TRANSITION METAL COMPOUND AND CATALYST FOR OLEFIN POLYMERIZATION
  申请人：HANAOKA Hidenori

  公开号：US20110319578A1

  公开（公告）日：2011-12-29

  A transition metal compound represented by the formula (1-1) or the formula (1-2) (M is a transition metal atom) and a process for producing a catalyst for olefin polymerization comprising a step of bringing the transition metal compound into contact with a co-catalytic component for activation.

  一种由化学式(1-1)或化学式(1-2)所代表的过渡金属化合物（其中M是一种过渡金属原子）和制备催化剂的方法，包括将该过渡金属化合物与协同催化剂成分接触以激活的步骤。
• MODIFIED PARTICLE, SUPPORT, CATALYST COMPONENT FOR ADDITION POLYMERIZATION, CATALYST FOR ADDITION POLYMERIZATION, AND PROCESS FOR PRODUCING ADDITION POLYMER
  申请人：Sumitomo Chemical Company, Limited

  公开号：EP1275662A1

  公开（公告）日：2003-01-15

  A modified particle obtained by contacting the following (a), the following (b), the following (c) and a particle (d) with one another, (a): a compound represented by the following general formula [1],         M1L1 m     [1], (b): a compound represented by the following general formula [2],         R1 t-1TH     [2], and (c): a compound represented by the following general formula [3],         R2 t-2TH2     [3], in which general formulas [1] to [3], M1 is a typical metal atom of the Group 1, 2, 12, 14 or 15 of the periodic table, m is a valence of M1, L1 is ahydrogen atom, a halogen atom or a hydrocarbon group, when more than one L1 exists, they may be the same or different from one another, R1 is an electron-withdrawing group or an electron-withdrawing group-containing group, when more than one R1 exists, they may be the same or different from one another, R2 is a hydrocarbon group or a halogenated hydrocarbon group, T in each compound is independently of each other a non-metal atom of the Group 15 or 16 of the periodic table, and t is a valence of T in each compound, a carrier comprising said particle, a catalyst component for addition polymerization comprising the same, a catalyst for addition polymerization using said catalyst component, a process for producing an addition polymer using said catalyst.

  将以下（a）、以下（b）、以下（c）和颗粒（d）相互接触后得到的改良颗粒、 (a): 由以下通式[1]代表的化合物、 M1L1 m [1]、 (b) 由下述通式[2]表示的化合物、 R1 t-1TH [2]、 和 (c) 由以下通式[3]表示的化合物、 R2 t-2TH2 [3]、 其中通式[1]至[3]中，M1 是元素周期表中第 1、2、12、14 或 15 族的典型金属原子，m 是 M1 的化合价，L1 是氢原子、卤素原子或烃基，当存在多个 L1 时，它们可以相同或不同，R1 是抽电子基团或含抽电子基团，当存在多个 R1 时，它们可以相同或不同、R2 是烃基或卤代烃基，每个化合物中的 T 相互独立地是元素周期表第 15 或 16 族的非金属原子，且 t 是每个化合物中 T 的化合价，包含所述颗粒的载体，包含相同颗粒的用于加成聚合的催化剂组分，使用所述催化剂组分进行加成聚合的催化剂，使用所述催化剂生产加成聚合物的工艺。
• Catalyst component for addition polymerization, process for producing said catalyst and process for producing addition polymer
  申请人：Sumitomo Chemical Company, Limited

  公开号：EP1300425A2

  公开（公告）日：2003-04-09

  There are provided: (I) a catalyst component for addition polymerization comprising: (i) a transition metal compound having (a) two cyclopentadiene type anion skeleton-carrying groups, which are linked with each other directly or through a bridging group, and (b) a hafnium atom as its central metal, and (ii) a transition metal compound having (a) two substituted cyclopentadiene type anion skeleton-carrying groups, which are not linked with each other, and (b) a zirconium atom or a titanium atom as its central atom; and (II) a process for producing a catalyst for addition polymerization, which comprises the step of contacting the above catalyst component with a co-catalyst component for activation.

  有提供： (I) 用于加成聚合的催化剂组分，包括 (i) 一种过渡金属化合物，它具有(a)两个直接或通过桥基相互连接的环戊二烯型阴离子载 骨架基团，和(b)一个作为其中心金属的铪原子，和 (ii) 具有以下特征的过渡金属化合物：(a)两个互不相连的取代环戊二烯型阴离子骨架载基，以及(b)一个锆原子或一个钛原子作为其中心原子；以及 (II) 生产加成聚合催化剂的工艺，包括将上述催化剂组分与助催化剂组分接触活化的步骤。
• MODIFIED SOLID POLYALKYLALUMINOXANE AND CATALYST FOR OLEFIN OLIGOMERIZATION REACTION
  申请人：Sumitomo Chemical Company Limited

  公开号：EP3202822A1

  公开（公告）日：2017-08-09

  The problems 1 to be solved by the present invention is to provide a modified solid poiyaikyialuminoxane capable of producing an α-olefin suppressing adhesion of any Polymer produced as a by-product onto the reactor wall and the stirrer and capable of providing a highly active olefin oligomerization reaction catalyst, and an olefin oligomerization reaction catalyst including the modified solid polyalkylaluminoxane. The present invention relates to a modified solid polyalkylaluminoxane for olefin oligomerization reactions, that comprises structural units represented by the following general formula (a) and structural units represented by the hollowing general formula (b), and whose median diameter is equal to oe larger than 0.1 µm and equal to or smaller than 50 µm, in which 1 the general formula (a) represents an alkyl group having 1 to 20 carbon atoms, and R" in the general formula (b) represents a halogenated alkoxy group having 1 to 20 carbon atoms or a halogenated aryloxy group having 6 to 20 carbon atoms.

  本发明要解决的问题1是提供一种能够生产α-烯烃的改性固体聚亚烷基铝氧烷，该改性固体聚亚烷基铝氧烷能够抑制作为副产品产生的任何聚合物粘附在反应器壁和搅拌器上，并能够提供一种高活性的烯烃低聚反应催化剂，以及一种包括该改性固体聚亚烷基铝氧烷的烯烃低聚反应催化剂。 本发明涉及一种用于烯烃低聚反应的改性固体聚烷基铝氧烷，它由以下通式（a）表示的结构单元和空心通式（b）表示的结构单元组成，其中线直径等于或大于 0.1 微米，等于或小于 50 微米、 其中，通式（a）中的 1 代表具有 1 至 20 个碳原子的烷基，通式（b）中的 R "代表具有 1 至 20 个碳原子的卤代烷氧基或具有 6 至 20 个碳原子的卤代芳氧基。