4-bromo-2,5-dimethyl-1H-indene | 543698-85-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 茚和异茚
• 英文名称: 4-bromo-2,5-dimethyl-1H-indene
• CAS: 543698-85-7
• 化学式: C₁₁H₁₁Br
• 分子量: 223.112
• InChiKey: QQXQXBXFLHDUPL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  4-bromo-2,5-dimethyl-1H-indene 在 magnesium 、 三甲基硅基甲基叠氮化物 作用下， 以 四氢呋喃 、 1,2-二溴乙烷 为溶剂， 反应 14.0h， 以57%的产率得到
  参考文献：
  名称：

  带有氮杂环的多取代的C2对称的ansa-茂金属：取代基对较高温度下丙烯聚合中催化性能的影响

  摘要：

  在这项工作中，我们系统地研究了取代基修饰对基于异特异锆茂催化剂的Me 2 Si（2-Alk-4-（N -carbazolyl）Ind）ZrX 2（X = Cl，Me）性能的影响。 ，其中前体被证明特别适用于高温丙烯聚合工艺。为了获得所需的锆茂，我们开发了一种新的合成途径，即通过Pd催化2，2'-二溴联芳基与4-氨基茚的环化反应，生成4-（N-咔唑基）茚，这是通过Buchwald-Hartwig反应或亲电法合成的用三甲基甲硅烷基甲基叠氮化物将4-茚基格氏试剂胺化。通过许多例子，阴离子促进了外消旋-到-内消旋异构化方法被证明工作良好可靠制备的外消旋-ZrMe 2个-complexes。在MAO或硼酸盐活化下于70和100°C的丙烯聚合中测试的21种茂金属中，某些锆茂在分子量能力，区域选择性或立体选择性方面优于母体催化剂。

  DOI：

  10.1039/d1dt00645b

文献信息

• Heteroatom bridged metallocene compounds for olefin polymerization
  申请人：Voskoboynikov Z. Alexander

  公开号：US20070135597A1

  公开（公告）日：2007-06-14

  This invention relates to a transition metal compound represented by the formula: wherein M is a group 3, 4, 5 or 6 transition metal atom, or a lanthanide metal atom, or actinide metal atom; E is: 1) a substituted or unsubstituted indenyl ligand that is bonded to Y through the four, five, six or seven position of the indenyl ring, or 2) a substituted or unsubstituted heteroindenyl ligand that is bonded to Y through the four, five or six position of the heteroindenyl ring, provided that the bonding position is not the same as the position of the ring heteroatom, or 3) a substituted or unsubstituted fluorenyl ligand that is bonded to Y through the one, two, three, four, five, six, seven or eight position of the fluorenyl ring, or 4) a substituted or unsubstituted heterofluorenyl ligand that is bonded to Y through the one, two, three, four, five or six position of the heteroindenyl ring, provided that the bonding position is not the same as the position of the ring heteroatom; A is a substituted or unsubstituted cyclopentadienyl ligand, a substituted or unsubstituted heterocyclopentadienyl ligand, a substituted or unsubstituted indenyl ligand, a substituted or unsubstituted heteroindenyl ligand, a substituted or unsubstituted fluorenyl ligand, a substituted or unsubstituted heterofluorenyl ligand, or other mono-anionic ligand; Y is a Group 15 or 16 bridging heteroatom substituent that is bonded via the heteroatom to E and A; and X are, independently, univalent anionic ligands, or both X are joined and bound to the metal atom to form a metallocycle ring, or both X join to form a chelating ligand, a diene ligand, or an alkylidene ligand. This invention further relates to catalyst systems comprising the above transiotioon metal compounds, activators and optional supports and their use to polymerize or oligomerize olefins.

  本发明涉及一种过渡金属化合物，其表示为以下公式：其中M是3、4、5或6族过渡金属原子，或镧系金属原子，或锕系金属原子；E是：1）与Y通过茚环的四、五、六或七位置结合的取代或未取代的茚基配体，或2）与Y通过杂环茚环的四、五或六位置结合的取代或未取代的杂环茚基配体，前提是结合位置与环杂原子的位置不同，或3）与Y通过芴环的一、二、三、四、五、六、七或八位置结合的取代或未取代的芴基配体，或4）与Y通过杂芴环的一、二、三、四、五或六位置结合的取代或未取代的杂芴基配体，前提是结合位置与环杂原子的位置不同；A是取代或未取代的环戊二烯基配体，取代或未取代的杂环戊二烯基配体，取代或未取代的茚基配体，取代或未取代的杂环茚基配体，取代或未取代的芴基配体，取代或未取代的杂芴基配体，或其他单阴离子配体；Y是通过杂原子与E和A结合的15族或16族桥接杂原子取代基；X是独立的一价阴离子配体，或两个X结合并与金属原子结合形成金属环，或两个X结合形成螯合配体、二烯基配体或烷基亚基配体。本发明还涉及包含上述过渡金属化合物、活化剂和可选支撑物的催化剂系统及其用于聚合或寡聚烯烃的用途。
• Preparation of substituted bridged indenyl and related ligands
  申请人：Voskoboynikov Z. Alexander

  公开号：US20070135596A1

  公开（公告）日：2007-06-14

  A process for preparing a chelating ligand of the formula (II) from a chelating ligand of the formula (I) via an sp 2 -sp 2 or sp 2 -sp 3 coupling reaction with an organometallic compound of the formula (III). wherein B is a bridging group that is bonded to L 1 and L 2 in formula (I) and to L 3 and L 4 in formula (II); L 1 is a substituted monocyclic or polycyclic ligand that comprises at least one chlorine, bromine, iodine, or sulfonate substituent, directly bonded to an sp 2 carbon atom of the ring structure of the ligand; L 2 is a monoanionic ligand; or L 2 may, independently, be defined as L 1 ; L 3 is the same group as L 1 , but said at least one chlorine, bromine, iodine, or sulfonate substituent is replaced with a hydrocarbyl, substituted hydrocarbyl, halocarbyl, or substituted halocarbyl fragment; L 4 is the same group as L 2 , though, when L 2 is defined as L 1 , L 4 may be the same as L 3 or L 1 ; R 1 is a hydrocarbyl, substituted hydrocarbyl, halocarbyl, or substituted halocarbyl; M 1 is an element of group 1, 2, 12, 13 or 14 of the Periodic Table of the Elements; each X 2 , if present, is selected independently from the group consisting of halogen atoms, the hydroxyl group, alkoxy groups, aryloxy groups, mesylate, tosylate and triflate; r is 1, 2 or 3, and t is 0, 1 or 2, where r+t corresponds to the oxidation number of M 1 .

  从化学配体的公式(I)通过与公式(III)的有机金属化合物进行sp2-sp2或sp2-sp3偶联反应，制备化学配体的公式(II)的方法。其中B是一个桥联基团，与公式(I)中的L1和L2以及公式(II)中的L3和L4结合；L1是一个取代的单环或多环配体，至少包含一个氯、溴、碘或磺酸酯取代基，直接与配体的环结构的sp2碳原子键合；L2是一个单负离子配体；或者L2可以独立地被定义为L1；L3与L1相同，但所述的至少一个氯、溴、碘或磺酸酯取代基被氢化碳基、取代的氢化碳基、卤代碳基或取代的卤代碳基片段所取代；L4与L2相同，但当L2被定义为L1时，L4可以与L3或L1相同；R1是一个氢化碳基、取代的氢化碳基、卤代碳基或取代的卤代碳基；M1是元素周期表第1、2、12、13或14组的元素；每个X2，如果存在，可独立地选择自卤素原子、羟基、烷氧基、芳基氧基、甲磺酸酯、对甲苯磺酸酯和三氟甲磺酸酯组成的群；r为1、2或3，t为0、1或2，其中r+t对应于M1的氧化数。
• Metallocenes and catalyst compositions derived therefrom
  申请人：Burkhardt John Terry

  公开号：US20050037919A1

  公开（公告）日：2005-02-17

  Metallocenes and catalyst systems for olefin polymerization derived therefrom. The metallocenes may be represented by the formula: wherein M 1 preferably is zirconium or hafnium; and R 5 is different from hydrogen

  茂金属及其衍生的烯烃聚合催化剂体系。该茂金属可由以下公式表示：其中M1最好是锆或铪；而R5不同于氢。
• Halogen substituted metallocene compounds for olefin polymerization
  申请人：Voskoboynikov Z. Alexander

  公开号：US20060183874A1

  公开（公告）日：2006-08-17

  A metallocene compound is represented by the formula (1): A 2 Y y MX n-2 wherein: M is a transition metal atom having a coordination number of n selected from Group 3, 4, 5 or 6 of the Periodic Table of Elements, or a lanthanide metal atom, or actinide metal atom; each A is independently a substituted polycyclic arenyl ligand pi-bonded to M, each A ligand includes at least one halogen substituent directly bonded to an sp 2 carbon at a bondable ring position and, when each A is a substituted indenyl ligand and y is equal to one and the ligand includes at least one chloro, bromo or iodo substituent at the 4, 5, or 6 position of the indenyl ligand, then A also includes at least one other substituent in the indenyl ligand selected from hydrocarbyl, substituted hydrocarbyl, halogen, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, substituted germylcarbyl, or other heteroatom substituents wherein the heteroatom is bonded directly to a ring carbon of the ring structure ligand and is boron, a Group 15 atom, or a Group 16 atom, preferably boron, nitrogen, oxygen, phosphorus, or sulfur; Y is an optional bridging group containing at least one Group 13, 14, 15, or 16 element and is bonded to any single position of the ring structure of A, y is zero or 1, indicating the absence (y=0) or presence (y=1) of Y; and the or each X is a univalent anionic ligand, or two X are joined and bound to the metal atom to form a metallocycle ring, or two X are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand; provided that when y is equal to 1, then A is not 5,6-dichloroindenyl or an indenyl group having a fluoro- or chloro substituent at the 7 position and a hydrocarbyl or substituted hydrocarbyl substituent at the 4 position, and provided further that when y is equal to 0, then A is not 5,6-difluoroindenyl.

  一个金属茂化合物的化学式为(1)：A2YyMXn-2，其中：M是从元素周期表的3、4、5或6组中选择的配位数为n的过渡金属原子，或者是镧系金属原子或锕系金属原子；每个A都是独立的取代多环芳基配体，与M通过π键相连，每个A配体包括至少一个卤素取代基，直接连接到可结合环位置的sp2碳，当每个A是取代吲哚基并且y等于1，配体包括吲哚基的4、5或6位置至少一个氯、溴或碘取代基时，A还包括至少一个吲哚基中的其他取代基，所选取代基包括烃基、取代烃基、卤素、卤代烃基、取代卤代烃基、硅烷基、取代硅烷基、锗烷基、取代锗烷基或其他杂原子取代基，其中杂原子直接与环结构配体的环碳键合，杂原子是硼、15族元素或16族元素，优选硼、氮、氧、磷或硫；Y是一个可选的桥接基团，其中至少包含一个13、14、15或16族元素，并与A的环结构的任何单个位置键合，y为0或1，表示Y的缺失（y=0）或存在（y=1）；每个X是一个一价阴离子配体，或者两个X结合并与金属原子结合形成金属环状化合物，或者两个X结合形成螯合配体、二烯配体或烷基亚甲基配体；但当y等于1时，A不是5,6-二氯吲哚基或在7位置具有氟或氯取代基和在4位置具有烃基或取代烃基取代基的吲哚基团，当y等于0时，A不是5,6-二氟吲哚基。
• METALLOCENES AND CATALYST COMPOSITIONS DERIVED THEREFROM
  申请人：Exxonmobil Chemical Patents Inc.

  公开号：EP1456217A1

  公开（公告）日：2004-09-15