2-[2-(2-Methoxyethoxy)ethoxy]ethyl 3-[2-[4-(dimethylamino)-6-[2-[3-[2-[2-(2-methoxyethoxy)ethoxy]ethoxycarbonyl]phenyl]ethynyl]pyridin-2-yl]ethynyl]benzoate | 680998-02-1

• 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-(2-Methoxyethoxy)ethoxy]ethyl 3-[2-[4-(dimethylamino)-6-[2-[3-[2-[2-(2-methoxyethoxy)ethoxy]ethoxycarbonyl]phenyl]ethynyl]pyridin-2-yl]ethynyl]benzoate
• 英文别名: 2-[2-(2-methoxyethoxy)ethoxy]ethyl 3-[2-[4-(dimethylamino)-6-[2-[3-[2-[2-(2-methoxyethoxy)ethoxy]ethoxycarbonyl]phenyl]ethynyl]pyridin-2-yl]ethynyl]benzoate
• CAS: 680998-02-1
• 化学式: C₃₉H₄₆N₂O₁₀
• 分子量: 702.802
• InChiKey: CNIJMIRBXSZHBI-UHFFFAOYSA-N

物化性质

• 沸点：
  787.2±60.0 °C(Predicted)
• 密度：
  1.23±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  51
• 可旋转键数：
  27
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  124
• 氢给体数：
  0
• 氢受体数：
  12

反应信息

• 作为反应物：
  描述：

  丙基磺酸甲酯 、 2-[2-(2-Methoxyethoxy)ethoxy]ethyl 3-[2-[4-(dimethylamino)-6-[2-[3-[2-[2-(2-methoxyethoxy)ethoxy]ethoxycarbonyl]phenyl]ethynyl]pyridin-2-yl]ethynyl]benzoate 以 乙腈 为溶剂， 生成
  参考文献：
  名称：

  Foldamers as Reactive Sieves:  Reactivity as a Probe of Conformational Flexibility

  摘要：

  A series of m-phenyleneethynylene (mPE) oligomers modified with a dimethylaminopyridine (DMAP) unit were treated with methyl sulfonates of varying sizes and shapes, and the relative reactivities were measured by UV spectrophotometry. Using a small-molecule DMAP analogue as a reference, each of the methyl sulfonates was shown to react at nearly identical rate. In great contrast, oligomers that are long enough to fold, and hence capable of binding the methyl sulfonate, experience rate enhancements of 18-1600-fold relative to that of the small-molecule analogue, depending on the type of alkyl chain attached to the guest. Three different oligomer lengths were studied, with the longest oligomers exhibiting the fastest rate and greatest substrate specificity. Even large, bulky guests show slightly enhanced methylation rates compared to that with the reference DMAP, which suggests a dynamic nature to the oligomer's binding cavity. Several mechanistic models to describe this behavior are discussed.

  DOI：

  10.1021/ja067670a
• 作为产物：
  描述：

  N,N-dimethyl-2,6-bis[2-tri(propan-2-yl)silylethynyl]pyridin-4-amine 在 copper(l) iodide tris(dibenzylideneacetone)dipalladium (0) 、 四丁基氟化铵 、 三乙胺 、 三苯基膦 作用下， 以 四氢呋喃 、 乙腈 为溶剂， 反应 20.02h， 生成 2-[2-(2-Methoxyethoxy)ethoxy]ethyl 3-[2-[4-(dimethylamino)-6-[2-[3-[2-[2-(2-methoxyethoxy)ethoxy]ethoxycarbonyl]phenyl]ethynyl]pyridin-2-yl]ethynyl]benzoate
  参考文献：
  名称：

  Pyridine-Containing m-Phenylene Ethynylene Oligomers Having Tunable Basicities

  摘要：

  Incorporation of a pyridine monomer into the backbone of a m-phenylene ethynylene oligomer allows functionalization of the interior binding cavity of the folded oligomer. The basicity of the inwardly directed pyridine moiety was modulated by changing the substituents on the pyridine ring and through oligomer folding, granting access to a pK(a) range of 5-14 in acetonitrile.

  DOI：

  10.1021/ol0363016

文献信息

• Sequence dependence of methylation rate enhancement in meta-phenyleneethynylene foldamers
  作者：Ronald A. Smaldone、Jeffrey S. Moore

  DOI：10.1039/b716122k

  日期：——

  The methylation rates of a meta-phenyleneethynylene (mPE) oligomer with a terminally-attached 4-dimethylaminopyridine (DMAP) residue are reported for a series of linear and branched methyl sulfonates; these data show that selective methylation is enhanced by locating the DMAP unit at the midpoint of the sequence, allowing the foldamer cavity to function as a reactive sieve.

  报告了一系列线性和支链甲基磺酸盐的具有末端连接的 4-二甲基氨基吡啶（DMAP）残基的偏苯乙炔（mPE）低聚物的甲基化率；这些数据表明，将 DMAP 单元置于序列的中点，可使折叠体腔起到反应筛的作用，从而增强选择性甲基化。