2,7-dibromo-3,6-di-t-butylfluorene | 106112-41-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,7-dibromo-3,6-di-t-butylfluorene
• 英文别名: 2,7-Dibromo-3,6-DI-tert-butyl-9H-fluorene；2,7-dibromo-3,6-ditert-butyl-9H-fluorene
• CAS: 106112-41-8
• 化学式: C₂₁H₂₄Br₂
• 分子量: 436.23
• InChiKey: CJAWGCMXXRQNNO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.3
• 重原子数：
  23
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.43
• 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：

  2,7-dibromo-3,6-di-t-butylfluorene 在 三氯化铝 作用下， 以 苯 为溶剂， 反应 0.5h， 以43%的产率得到2,7-二溴芴
  参考文献：
  名称：

  使用叔丁基官能团作为位置保护基团选择性制备芴衍生物

  摘要：

  通过 2,7-二叔丁基芴 (1) 的亲电取代制备了几种 4-取代的 2,7-二叔丁基芴衍生物 (3)。4-取代芴(4)，如4-溴-(4a)、4-甲基...

  DOI：

  10.1246/bcsj.59.97
• 作为产物：
  描述：

  4,4’-双叔丁基二苯基甲烷 在 N-溴代丁二酰亚胺(NBS) 、 硫酸 、 铜 、 过碘酸 作用下， 以 水 为溶剂， 反应 10.0h， 生成 2,7-dibromo-3,6-di-t-butylfluorene
  参考文献：
  名称：

  使用叔丁基官能团作为位置保护基团选择性制备芴衍生物

  摘要：

  通过 2,7-二叔丁基芴 (1) 的亲电取代制备了几种 4-取代的 2,7-二叔丁基芴衍生物 (3)。4-取代芴(4)，如4-溴-(4a)、4-甲基...

  DOI：

  10.1246/bcsj.59.97

文献信息

• Process for the preparation of substituted fluorenes
  申请人：Fina Technology, Inc.

  公开号：US07094938B1

  公开（公告）日：2006-08-22

  Methods for the preparation of fluorenyl-type ligand structures and substituted fluorenyl groups which may be employed in metallocene-type olefin polymerization catalysts. There is provided a 2,2′-dihalogen-diphenylmethylene having a methylene bridge connecting a pair of phenyl groups. Each phenyl group has a halogen on a proximal carbon atom relative to the methylene bridge. The halogenated diphenylmethylene is reacted with a coupling agent comprising a Group 2 or 12 transition metal in the presence of a nickel or palladium-based catalyst to remove the halogen atoms from the phenyl groups and couple the phenyl groups at the proximal carbon atoms to produce a fluorene ligand structure. The coupling agent may be zinc, cadmium or magnesium and the catalyst may be a monophosphene nickel complex. The halogenated diphenylmethylene may be an unsubstituted ligand structure or a monosubstituted or disubstituted ligand structure. The halogenated diphenylmethylene may be monosubstituted with a tertiary butyl group or may be a dialkyl diphenylmethylene having alkyl substituents at the directly distal positions of the phenyl groups relative to the methylene bridge.

  用于制备二卤代二苯基亚甲基的方法，所述二卤代二苯基亚甲基具有连接一对苯基的亚甲基桥。每个苯基在与亚甲基桥近邻的碳原子上具有卤素。将卤代二苯基亚甲基与偶联剂反应，所述偶联剂包括第2组或第12组过渡金属，在镍或钯基催化剂的存在的条件下从苯基去除卤素原子并将苯基在近邻的碳原子上偶联以产生二苯基亚甲基桥。偶联剂可以是锌、镉或镁，催化剂可以是单磷烯镍配合物。卤代二苯基亚甲基可以是未取代的配体结构，也可以是单取代或双取代的配体结构。卤代二苯基亚甲基可以单取代叔丁基，或可以是双烷基二苯基亚甲基，在相对于亚甲基桥的苯基直接远端的位点上具有烷基取代基。
• Preparation and use of tetrasubstituted fluorenyl catalysts for polymerization of olefins
  申请人：Fina Technology, Inc.

  公开号：US08093418B2

  公开（公告）日：2012-01-10

  Catalyst compositions and processes for the polymerization of ethylenically unsaturated monomers to produce polymers, including copolymers or homopolymers. Such monomers include ethylene, C3+ alpha olefins and substituted vinyl compounds, such as styrene and vinyl chloride. The polymerization catalyst characterized by the formula B(FluL)MQn in which Flu is a fluorenyl group substituted at at least the 2,7- and 3,6-positions by hydrocarbyl groups, preferably relatively bulky hydrocarbyl groups. L is a substituted or unsubstituted cyclopentadienyl, indenyl or fluorenyl group or a heteroorgano group, XR, in which X is a heteroatom from Group 15 or 16 of the Periodic Table of Elements, such as nitrogen, R is an alkyl group, a cycloalkyl group or an aryl group and B is a structural bridge extending between the groups L and Flu, which imparts stereorigidity to the ligand structure, M is a Group 4 or Group 5 transition metal, such as titanium, zirconium or hafnium and Q is selected from the group consisting of chlorine, bromine, iodine, an alkyl group, an amino group, an aromatic group and mixtures thereof, with n being 1 or 2.

  催化剂组成和过程用于聚合具有乙烯基不饱和单体以生产聚合物，包括共聚物或均聚物。这些单体包括乙烯，C3+α烯烃和取代的乙烯基化合物，如苯乙烯和氯乙烯。聚合催化剂的特征公式为B(FluL)MQn，其中Flu是在至少2,7-和3,6-位置上被碳氢基取代的芴基团，优选是相对较大的碳氢基团。L是取代或未取代的环戊二烯基，茚基或芴基团或杂原子组XR，其中X是元素周期表第15或16组的杂原子，例如氮，R是烷基，环烷基或芳基，B是在L和Flu之间延伸的结构桥，使配体结构具有立体构效，M是第4或第5组过渡金属，例如钛，锆或铪，Q从氯，溴，碘，烷基，氨基，芳基和其混合物中选择，其中n为1或2。
• Catalyst for olefin polymerization, method for producing olefin polymer, method for producing propylene-based copolymer, propylene polymer, propylene-based polymer composition, and use of those
  申请人：Tohi Yasushi

  公开号：US20080220193A1

  公开（公告）日：2008-09-11

  A catalyst for olefin polymerization, comprising: (A-1) a bridged metallocene compound represented by the following Formula [1-1], and (b) at least one compound selected from: (b-1) an organoaluminum oxy compound, (b-2) a compound which forms an ion pair, and (b-3) an organoaluminum compound: wherein in Formula [1-1], R 1 , R 2 , R 3 , R 4 , R 5 , R 8 , R 9 , and R 12 are each selected from a hydrogen, a hydrocarbon group and a silicon-containing group; the four groups of R 6 , R 7 , R 10 , and R 11 are not hydrogen atoms, and are each selected from a hydrocarbon group or a silicon-containing group; R 13 and R 14 are each a hydrocarbon group or the like, excluding a hydrogen atom and a methyl group; M is Ti, Zr or the like; Y is carbon or the like; Q is a halogen or the like; and j is an integer from 1

  催化剂，用于烯烃聚合，包括：（A-1）桥联金属茂化合物，其表示为以下式[1-1]；以及（b）至少一种化合物，选自：（b-1）有机铝氧化合物，（b-2）形成离子对的化合物，以及（b-3）有机铝化合物。在式[1-1]中，R1、R2、R3、R4、R5、R8、R9和R12各自选自氢、烃基和含硅基团；R6、R7、R10和R11的四个基团不是氢原子，各自选自烃基或含硅基团；R13和R14各自是烃基或类似的基团，不包括氢原子和甲基基团；M是Ti、Zr或类似的金属；Y是碳或类似的元素；Q是卤素或类似的元素；j是整数1或更大。
• PROCESS FOR THE PREPARATION OF SUBSTITUTED FLUORENES
  申请人：Marin Vladimir

  公开号：US20090076315A1

  公开（公告）日：2009-03-19

  Methods for the preparation of fluorenyl-type ligand structures and substituted fluorenyl groups which may be employed in metallocene-type olefin polymerization catalysts. There is provided a 2,2′-dihalogen-diphenylmethylene having a methylene bridge connecting a pair of phenyl groups. Each phenyl group has a halogen on a proximal carbon atom relative to the methylene bridge. The halogenated diphenylmethylene is reacted with a coupling agent comprising a Group 2 or 12 transition metal in the presence of a nickel or palladium-based catalyst to remove the halogen atoms from the phenyl groups and couple the phenyl groups at the proximal carbon atoms to produce a fluorene ligand structure. The coupling agent may be zinc, cadmium or magnesium and the catalyst may be a monophosphene nickel complex. The halogenated diphenylmethylene may be an unsubstituted ligand structure or a monosubstituted or disubstituted ligand structure. The halogenated diphenylmethylene may be monosubstituted with a tertiary butyl group or may be a dialkyl diphenylmethylene having alkyl substituents at the directly distal positions of the phenyl groups relative to the methylene bridge.

  制备荧烯型配体结构和取代荧烯基团的方法，可用于金属茂嗪型烯烃聚合催化剂。提供了一种2,2'-二卤代二苯甲烷，其具有连接一对苯基的亚甲基桥。每个苯基在相对于亚甲基桥的近端碳原子上具有卤素。在镍或钯基催化剂的存在下，将卤代二苯甲烷与包含第2或12族过渡金属的偶合剂反应，以去除苯基上的卤素，并在近端碳原子上耦合苯基，从而产生荧烯配体结构。偶合剂可以是锌、镉或镁，催化剂可以是单膦基镍配合物。卤代二苯甲烷可以是未取代的配体结构，也可以是单取代或双取代的配体结构。卤代二苯甲烷可以是单取代的叔丁基基团，也可以是具有烷基取代基的二烷基二苯甲烷，在苯基相对于亚甲基桥的直接远端位置上具有取代基。
• Preparation and Use of Tetrasubstituted Fluorenyl Catalysts for Polymerization of Olefins
  申请人：Marin Vladimir

  公开号：US20080026935A1

  公开（公告）日：2008-01-31

  Catalyst compositions and processes for the polymerization of ethylenically unsaturated monomers to produce polymers, including copolymers or homopolymers. Such monomers include ethylene, C 3+ alpha olefins and substituted vinyl compounds, such as styrene and vinyl chloride. The polymerization catalyst characterized by the formula B(FluL)MQ n in which Flu is a fluorenyl group substituted at at least the 2,7- and 3,6-positions by hydrocarbyl groups, preferably relatively bulky hydrocarbyl groups. L is a substituted or unsubstituted cyclopentadienyl, indenyl or fluorenyl group or a heteroorgano group, XR, in which X is a heteroatom from Group 15 or 16 of the Periodic Table of Elements, such as nitrogen, R is an alkyl group, a cycloalkyl group or an aryl group and B is a structural bridge extending between the groups L and Flu, which imparts stereorigidity to the ligand structure, M is a Group 4 or Group 5 transition metal, such as titanium, zirconium or hafnium and Q is selected from the group consisting of chlorine, bromine, iodine, an alkyl group, an amino group, an aromatic group and mixtures thereof, with n being 1 or 2.

  催化剂组分和过程，用于聚合乙烯基不饱和单体以产生聚合物，包括共聚物或均聚物。这些单体包括乙烯，C3+α烯烃和取代的乙烯基化合物，例如苯乙烯和氯乙烯。聚合催化剂的特征是公式B(FluL)MQn，其中Flu是在至少2,7-位和3,6-位被烃基取代的芴基团，优选是相对较大的烃基团。L是取代或未取代的环戊二烯基、茚基或芴基团或杂原子有机团，XR，在其中X是元素周期表15或16族的杂原子，例如氮，R是烷基团、环烷基团或芳基团，B是延伸在L和Flu之间的结构桥，赋予配体结构立体刚性，M是第4或第5族过渡金属，例如钛、锆或铪，Q从氯、溴、碘、烷基团、氨基团、芳香族团和其混合物中选择，n为1或2。