propargyl 2,2-bis(((2'-bromo-2'-methylpropionyl)oxy)methyl)propionate | 949023-35-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: propargyl 2,2-bis(((2'-bromo-2'-methylpropionyl)oxy)methyl)propionate
• 英文别名: propargyl 2,2-bis((2'-bromo-2'-methylpropanoyloxy)methyl)propanoate；propargyl 2,2-bis((2'-bromo-2'-methylpropionyloxy)methyl)propionate；Propargyl 2,2-bis((2'-bromo-2'-methylpropanoyloxy)methyl)propionate；prop-2-ynyl 3-(2-bromo-2-methylpropanoyl)oxy-2-[(2-bromo-2-methylpropanoyl)oxymethyl]-2-methylpropanoate
• CAS: 949023-35-2
• 化学式: C₁₆H₂₂Br₂O₆
• 分子量: 470.155
• InChiKey: WELJSCNCJZVAGA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  24
• 可旋转键数：
  11
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.69
• 拓扑面积：
  78.9
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  2,2,5-三甲基-1,3-二恶烷-5-甲酸 在 盐酸 、 4-二甲氨基吡啶 、 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 为溶剂， 反应 8.17h， 生成 propargyl 2,2-bis(((2'-bromo-2'-methylpropionyl)oxy)methyl)propionate
  参考文献：
  名称：

  Formation Kinetics and Scaling of “Defect-Free” Hyperbranched Polystyrene Chains with Uniform Subchains Prepared from Seesaw-Type Macromonomers

  摘要：

  Using a facile approach, we successfully made large "defect-free" hyperbranched polystyrene (PSt) chains with uniform subchains between two branching points from the interchain "clicking" of a seesaw-type linear macromonomer [azide similar to similar to similar to alkyne similar to similar to similar to azide] prepared by ATRP with a following conversion of two bromine-ends into two azide-ends, where denotes a PSt chain (1.65-31.0 kg/mol). The "click" reaction kinetics monitored by a combination of size exclusion chromatography (SEC) and laser light scattering (LLS) reveals that the degree of self-polycondensation (DP) is related to the reaction time (t) as ln(DP + 1)/2 = ([A](0)k(AB,0))/beta arctan(beta t), where [A](0) and k(AB,0) are the initial alkyne concentration and the initial reaction rate between the azide and alkyne groups, respectively; beta is a constant and its reciprocal (1/beta) represents the time at which k(AB) = k(AB,0)/2. The results reveal that 1/beta is scaled to the macromonomer's molar concentration ([C]) and molar mass (M) as 1/beta [C]M--0.35(0.55) indicating that 1/beta is governed by the interchain distance and diffusion, respectively. Each hyperbranched sample can be further fractionated into a set of narrowly distributed "defect-free" hyperbranched chains with different molar masses by precipitation. The LLS results show, for the first time, that the root-mean-square radius of gyration (< R-g >) and hydrodynamic radius (< R-h >) of "defect-free" hyperbranched polystyrenes in toluene at 25 degrees C are scaled to the weight-average molar mass (M-w) as < R-g > = 5.53 x 10(-2)M(w)(0.464) and < R-h > = 2.95 x 10(-2) M-w(0.489), respectively, where the exponents are smaller than the predicted 1/2.

  DOI：

  10.1021/ma201687s

文献信息

• Synthesis of supramolecular polymer based on noncovalent “host–guest” inclusion complexation and its reversible self-assembly
  作者：Long Yang、Ming Lei、Min Zhao、Hong Yang、Kehu Zhang、Hong Zhang、Yan Li、Zhongli Lei

  DOI：10.1039/c6nj00728g

  日期：——

  A stimuli-responsive supramolecular polymer based on noncovalent “host–guest” inclusion complexation.

  基于非共价“宿主-客体”包合络合作用的刺激响应性超分子聚合物。
• Synthesis of a smart Janus-like supramolecular polymer based on the host–guest chemistry and its self-assembly
  作者：Long Yang、Yinzhou Guo、Zhongli Lei

  DOI：10.1039/c5ta03937a

  日期：——

  double stimuli-responsive self-assembly of a Janus-like supramolecular polymer based on the host–guest chemistry. It is constructed by the noncovalent coupling between a hyperbranched PMAA with an apex of an adamantane (Ad) group and a hyperbranched PNIPAAm with an apex of a β-cyclodextrin (β-CD) group. Upon adjusting the solution pH or temperature, the supramolecular polymer can reversibly self-assemble

  我们报道了基于宿主-客体化学的Janus样超分子聚合物的双重刺激响应自组装。它是由具有金刚烷（Ad）基团的超支的PMAA和具有β-环糊精（β-CD）基团的超支的PNIPAAm之间的非共价偶联而构建的。在调节溶液的pH或温度时，超分子聚合物可以在溶液中可逆地自组装。