1,1-bis{3-[(tert-butyl(dimethyl)silyloxy)methyl]phenyl}ethylene

• 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: 1,1-bis{3-[(tert-butyl(dimethyl)silyloxy)methyl]phenyl}ethylene
• 英文别名: 1,1-bis[3-(tert-butyl(dimethyl)silyloxymethyl)phenyl]ethylene；1,1-bis(3-(tert-butyldimethylsilyloxy)methylphenyl)ethylene；1,1-bis[3-(tert-butyldimethylsilyloxymethyl)phenyl]ethylene；1,1-bis(3-tert-butyldimethylsilyloxymethylphenyl)ethylene；1,1-Bis(3-t-butyldimethylsilyloxymethylphenyl)ethylene；tert-butyl-[[3-[1-[3-[[tert-butyl(dimethyl)silyl]oxymethyl]phenyl]ethenyl]phenyl]methoxy]-dimethylsilane
• 化学式: C₂₈H₄₄O₂Si₂
• 分子量: 468.827
• InChiKey: QFVARGBFYYOECB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.79
• 重原子数：
  32
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1,1-bis{3-[(tert-butyl(dimethyl)silyloxy)methyl]phenyl}ethylene 在 三甲基氯硅烷 、 potassium naphthalenide 、 lithium bromide 作用下， 以 四氢呋喃 、 乙腈 为溶剂， 反应 25.0h， 生成 1,1,4,4-tetra[3-(bromomethyl)phenyl]butane
  参考文献：
  名称：

  涉及耦合和转化反应的迭代发散法精确合成树状聚合物状星形支化的聚甲基丙烯酸甲酯（直至第七代）

  摘要：

  树状聚合物状星形支化聚甲基丙烯酸甲酯（PMMA）的合成采用发散发散法，该方法涉及α-官能化的活性PMMA与两个叔丁基二甲基甲硅烷氧基甲基苯基（SMP）基团与苄基溴的偶联反应（ BnBr）链末端官能化的PMMA以及引入的SMP基团向BnBr官能团的转化反应。通过将这两个反应重复七次，可以成功合成直至第七代的树状聚合物状星形支化PMMA。所得聚合物均在支链结构中定义明确，在链长和末端官能度方面得到精确控制，分子量分布极窄（M w / M n<1.03）。第七代本文PMMA合成为1.97×10 6在中号瓦特值，并且由508个PMMA段。此外，沿其外围显示了512个SMP终点。粘度测量表明，与具有相同分子量的相应线性聚合物相比，每一代中的树状聚合物状星形支化聚合物具有较小的流体力学体积。随着世代的进行，g ′值变小。

  DOI：

  10.1021/ma050762k

文献信息

• Precise Synthesis of Novel Chain-End-Functionalized Polystyrenes with a Definite Number of Perfluorooctyl Groups and Their Surface Characterization
  作者：Ashraf A. El-Shehawy、Hideaki Yokoyama、Kenji Sugiyama、Akira Hirao

  DOI：10.1021/ma050457z

  日期：2005.10.1

  We have successfully synthesized two types of chain-end-functionalized polystyrenes with a definite number of C8F17 groups that are dendritically distributed and linearly aligned in a double line. They are referred to as D and L types, respectively. In each type, there are three series of polymers whose C8F17 groups are connected to the main polystyrene chains by pheryl ether, benzyl ether, and benzyl ester linkages. A definite number of C8F17 groups from 2 to 32 and 1 to 10 are introduced at the chain ends of D and L type polymers, respectively. The resulting polymers all were well-defined in architecture and precisely controlled in chain length and degree of chain-end functionalization of C8F17 group. These polymers were cast into film and, after annealing, examined the surface segregation behavior Of C8F17 group by angle-dependent X-ray photoelectron spectroscopy and contact angle measurements using water and dodecane droplets. All of the C8F17-chain-end-functionalized polymers showed fairly large surface segregation and enrichment of C8F17 group- Furthermore, it was found that the segregation behavior strongly depended on the number and the alignment of C8F17 group and the linkage between C8F17 group and main chain. In general, the extent of the enrichment increased with increasing number of C8F17 groups and appeared to be saturated at a certain number Of C8F17 groups, ranging from 4 to 16 depending on the polymer series.
• Precise Synthesis of Dendrimer-like Star-Branched Poly(methyl methacrylate)s up to Seventh Generation by an Iterative Divergent Approach Involving Coupling and Transformation Reactions
  作者：Akira Hirao、Akira Matsuo、Takumi Watanabe

  DOI：10.1021/ma050762k

  日期：2005.10.1

  The synthesis of dendrimer-like star-branched poly(methyl methacrylate)s (PMMAs) were carried out by an iterative divergent approach which involved a coupling reaction of α-functionalized living PMMA with two tert-butyldimethylsilyloxymethylphenyl (SMP) groups with benzyl bromide (BnBr) chain-end-functionalized PMMA and a transformation reaction of the introduced SMP groups into BnBr functionalities

  树状聚合物状星形支化聚甲基丙烯酸甲酯（PMMA）的合成采用发散发散法，该方法涉及α-官能化的活性PMMA与两个叔丁基二甲基甲硅烷氧基甲基苯基（SMP）基团与苄基溴的偶联反应（ BnBr）链末端官能化的PMMA以及引入的SMP基团向BnBr官能团的转化反应。通过将这两个反应重复七次，可以成功合成直至第七代的树状聚合物状星形支化PMMA。所得聚合物均在支链结构中定义明确，在链长和末端官能度方面得到精确控制，分子量分布极窄（M w / M n<1.03）。第七代本文PMMA合成为1.97×10 6在中号瓦特值，并且由508个PMMA段。此外，沿其外围显示了512个SMP终点。粘度测量表明，与具有相同分子量的相应线性聚合物相比，每一代中的树状聚合物状星形支化聚合物具有较小的流体力学体积。随着世代的进行，g ′值变小。