2,2'-diiodo-4,4'-di(tert-butyl)diphenylmethane | 106112-39-4

• 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: 2,2'-diiodo-4,4'-di(tert-butyl)diphenylmethane
• 英文别名: 4-Tert-butyl-1-[(4-tert-butyl-2-iodophenyl)methyl]-2-iodobenzene
• CAS: 106112-39-4
• 化学式: C₂₁H₂₆I₂
• 分子量: 532.246
• InChiKey: RTBOONRBCCABJG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.5
• 重原子数：
  23
• 可旋转键数：
  4
• 环数：
  2.0
• 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：

  2,2'-diiodo-4,4'-di(tert-butyl)diphenylmethane 在 bis(triphenylphosphine)nickel(II) chloride 、 三苯基膦 叔丁基过氧化氢 、 重铬酸吡啶 、 Celite 、 锌 作用下， 以 N,N-二甲基甲酰胺 、 苯 为溶剂， 反应 24.0h， 生成 3,6-di-tert-butyl-9H-fluoren-9-one
  参考文献：
  名称：

  SYNTHESIS OF 3,6-DI-(tert-BUTYL)FLUORENE BY NICKEL(0) CATALYZED COUPLING OF ARYL HALIDES

  摘要：

  DOI：

  10.1080/00304949809355284
• 作为产物：
  描述：

  4,4’-双叔丁基二苯基甲烷 在 硫酸 、 过碘酸 作用下， 以 水 为溶剂， 以54%的产率得到2,2'-diiodo-4,4'-di(tert-butyl)diphenylmethane
  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。
• Sc and Y Heteroalkyl Complexes with a NC _sp3 N Pincer‐Type Diphenylmethanido Ligand: Synthesis, Structure, and Reactivity
  作者：Ahmad Fayoumi、Dmitry M. Lyubov、Alexey O. Tolpygin、Andrey S. Shavyrin、Anton V. Cherkasov、Anatoly M. Ob'edkov、Alexander A. Trifonov

  DOI：10.1002/ejic.202000306

  日期：2020.9.14

  Rare‐earth metal heteroalkyl complexes [4‐tBu‐2‐(C3H2N2Me‐1)C6H3]2CH}Ln(CH2SiMe3)2(THF)n (Ln = Sc, n = 0 (2Sc); Y, n = 1 (2Y)) with NCsp3N pincer type diphenylmethanido ligand were synthesized by the selective sp3 CH‐bond activation of the central CH2 group in 1 by Ln(CH2SiMe3)3(THF)2. According to the X‐ray data the diphenylmethanido ligands in 2K and 2Sc perform a tridentate pincer‐type κ3‐N,C,N coordination

  使用Stille合成了新的二苯甲烷[4 - t Bu-2-（C 3 H 2 N 2 Me-1）C 6 H 3 ] 2 CH 2（1）在二苯甲烷骨架芳环的邻位带有咪唑基侧基在Pd（PPh 3）4存在下，双（4-（叔丁基）-2-碘苯基）甲烷与Bu 3 Sn（C 3 H 2 N 2 Me）之间的交叉偶联反应。二苯甲烷钾[[4 - t Bu-2-（C 3 H通过用等摩尔量的Lochmann-Schlosser超级碱处理1制备2 N 2 Me-1）C 6 H 3 ] 2 CH} K（OEt 2）] 2（2 K）。稀土金属杂烷基络合物[4 - t Bu-2-（C 3 H 2 N 2 Me-1）C 6 H 3 ] 2 CH} Ln（CH 2 SiMe 3）2（THF）n（Ln = Sc ，n = 0（2 Sc）; Y，n通过使用Ln（CH 2 SiMe 3）3（THF）2对1中的中心CH 2基团进行选择性sp
• Synthesis of a constrained ligand comprising carboxylate and amine donor groups via direct 1,8-functionalization of positionally protected fluorene
  作者：Dirk Burdinski、Karen Cheng、Stephen J. Lippard

  DOI：10.1016/j.tet.2004.10.111

  日期：2005.2

  The synthesis of 1,8-bis(dimethylaminomethylethynyl)-3,6-di(tert-butyl)fluorene-9-yl-acetic acid, a potentially dinucleating ligand containing two N-donor and bridging carboxylate groups, is described. The electronically disfavored 1,8-disubstitution of the fluorene ring system was achieved by using tert-butyl protecting groups in the 3- and 6-positions of the fluorene molecule in combination with

  描述了1,8-双（二​​甲基氨基甲基乙炔基）-3,6-二（叔丁基）芴-9-乙酸的合成，该潜在潜在的成核配体包含两个N-供体和桥接羧酸酯基团。通过在芴分子的3位和6位上使用叔丁基保护基与作为空间需求的亲电子试剂的汞（II）结合使用，实现了芴环系统的电子上不利的1,8-二取代。1,8-二碘芴衍生物的直接合成提供了对1,8-二取代芴分子的简单通用途径。
• Automotive part made of polypropylene resin composition
  申请人：——

  公开号：US20030187121A1

  公开（公告）日：2003-10-02

  An automobile part comprising a polypropylene resin composition, the polypropylene resin composition comprising a propylene homopolymer (A1), an elastomer (B) and an inorganic filler (C), or comprising a propylene block copolymer (A2) and an inorganic filler (C) optionally together with an elastomer (B), in specified proportions. The propylene homopolymer (A1), or the propylene homopolymer segment of the propylene block copolymer (A2) exhibits an MFR (230° C.) of 20 to 300 g/10 min, a ratio of position irregular units derived from 2,1-insertion or 1,3-insertion of propylene monomer relative to all propylene structural units, determined from a 13 C-NMR spectrum, each of 0.2% or less, and an Mw/Mn, determined by GPC, of 1 to 3. The present invention enables providing an automobile part (including an injection molded article) which has an excellent balance of rigidity and impact resistance, on which the possibility of flow marks is low and, even if flow marks occur, they are not conspicuous, and which realizes an excellent emboss transfer on molded article surface to thereby have an excellent appearance. The polypropylene resin composition for use in the present invention has the above formulation, so that the time required for plasticization is short. Consequently, the molding cycle for producing an injection molded article can be shortened to thereby accomplish efficient production of an injection molded automobile part capable of realizing the above effects.

  一种汽车零部件，包括聚丙烯树脂组合物，所述聚丙烯树脂组合物包括丙烯均聚物（A1），弹性体（B）和无机填料（C），或包括丙烯嵌段共聚物（A2）和无机填料（C），可选地与弹性体（B）一起，在指定的比例下混合。丙烯均聚物（A1）或丙烯嵌段共聚物（A2）的丙烯均聚物段具有MFR（230℃）为20至300g/10min，由13C-NMR光谱确定的源自2,1-插入或1,3-插入的丙烯单体的位置不规则单元与所有丙烯结构单元的比率均为0.2％或更少，并且由GPC确定的Mw/Mn为1至3。本发明能够提供一种汽车零部件（包括注塑成型品），其具有优异的刚度和抗冲击性的平衡，在其上流痕的可能性很低，即使出现流痕，它们也不明显，并且在成型品表面实现了优异的压花转移，从而具有优异的外观。本发明所用的聚丙烯树脂组合物具有上述配方，因此，塑化所需的时间很短。因此，用于生产注塑成型品的成型周期可以缩短，从而实现了能够实现上述效果的注塑汽车零部件的高效生产。
• Metallocene compound, process for preparing metallocene compund, olefin polymerization catalyst, process for preparing polyolefin, and polyolefin
  申请人：Kawai Koji

  公开号：US20050228155A1

  公开（公告）日：2005-10-13

  The metallocene compound according to the invention and the olefin polymerization catalyst containing the compound are intended to produce a catalyst capable of preparing an isotactic polymer with a high polymerization activity. The metallocene compound contains a substituted cyclopentadienyl group and a (substituted) fluorenyl group and has a structure wherein these groups are bridged by a hydrocarbon group or the like. The process for preparing a metallocene compound according to the invention is intended to selectively prepare a specific metallocene compound so as not to produce an isomer, and in this process an intermediate product is synthesized by a specific method. The process for preparing a polyolefin according to the invention is intended to prepare a polyolefin having excellent impact resistance and transparency, and this process comprises homopolymerizing an α-olefin of 3 to 8 carbon-atoms or copolymerizing an olefin of 3 to 8 carbon atoms and another α-olefin in the presence of an olefin polymerization catalyst containing the above-mentioned metallocene compound.

  本发明的金属茂化合物和含有该化合物的烯烃聚合催化剂旨在生产一个能够制备具有高聚合活性的等规聚物的催化剂。该金属茂化合物含有一个取代环戊二烯基和一个(取代)芴基，并且具有这些基团被碳氢基团或类似物桥接的结构。本发明的制备金属茂化合物的方法旨在选择性地制备特定的金属茂化合物，以避免产生异构体，在该过程中通过特定的方法合成中间产物。本发明的制备聚烯烃的方法旨在制备具有优异的冲击强度和透明度的聚烯烃，该方法包括在上述含有金属茂化合物的烯烃聚合催化剂的存在下，同聚合3到8个碳原子的α-烯烃或共聚合3到8个碳原子的烯烃和另一个α-烯烃。