glutaric acid monotriisopropylsilyl ester | 952573-93-2

• 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: glutaric acid monotriisopropylsilyl ester
• CAS: 952573-93-2
• 化学式: C₁₄H₂₈O₄Si
• 分子量: 288.459
• InChiKey: ZEQDVJYOAVMASQ-UHFFFAOYSA-N

物化性质

• 沸点：
  348.0±25.0 °C(Predicted)
• 密度：
  0.979±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.96
• 重原子数：
  19.0
• 可旋转键数：
  8.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  63.6
• 氢给体数：
  1.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  glutaric acid monotriisopropylsilyl ester 、 六甘醇 在 DPTS 、 N,N'-二异丙基碳二亚胺 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以59%的产率得到glutaric acid triisopropylsilyl ester hexaethylene glycol ester
  参考文献：
  名称：

  Paclitaxel-Functionalized Gold Nanoparticles

  摘要：

  Here we describe the first example of 2 nm gold nanoparticles (Au NPs) covalently functionalized with a chemotherapeutic drug, paclitaxel. The synthetic strategy involves the attachment of a flexible hexaethylene glycol linker at the C-7 position of paclitaxel followed by coupling of the resulting linear analogue to phenol-terminated gold nanocrystals. The reaction proceeds under mild esterification conditions and yields the product with a high molecular weight, while exhibiting an extremely low polyclispersity index (1.02, relative to linear polystyrene standards). TGA analysis of the hybrid nanoparticles reveals the content of the covalently attached organic shell as nearly 67% by weight, which corresponds to similar to 70 molecules of paclitaxel per 1 nanoparticle. The presence of a paclitaxel shell with a high grafting density renders the product soluble in organic solvents and allows for detailed H-1 NMR analysis and, therefore, definitive confirmation of its chemical structure. High-resolution TEM was employed for direct visualization of the inorganic core of hybrid nanoparticles, which were found to retain their average size, shape, and high crystallinity after multiple synthetic steps and purifications. The interparticle distance substantially increases after the attachment of paclitaxel as revealed by low-magnification TEM, suggesting the presence of a larger organic shell. The method described here demonstrates that organic molecules with exceedingly complex structures can be covalently attached to gold nanocrystals in a controlled manner and fully characterized by traditional analytical techniques. In addition, this approach gives a rare opportunity to prepare hybrid particles with a well-defined amount of drug and offers a new alternative for the design of nanosized drug-delivery systems.

  DOI：

  10.1021/ja075181k
• 作为产物：
  描述：

  戊二酸 、 三异丙基氯硅烷 在 吗啉 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 0.08h， 以39%的产率得到glutaric acid monotriisopropylsilyl ester
  参考文献：
  名称：

  Paclitaxel-Functionalized Gold Nanoparticles

  摘要：

  Here we describe the first example of 2 nm gold nanoparticles (Au NPs) covalently functionalized with a chemotherapeutic drug, paclitaxel. The synthetic strategy involves the attachment of a flexible hexaethylene glycol linker at the C-7 position of paclitaxel followed by coupling of the resulting linear analogue to phenol-terminated gold nanocrystals. The reaction proceeds under mild esterification conditions and yields the product with a high molecular weight, while exhibiting an extremely low polyclispersity index (1.02, relative to linear polystyrene standards). TGA analysis of the hybrid nanoparticles reveals the content of the covalently attached organic shell as nearly 67% by weight, which corresponds to similar to 70 molecules of paclitaxel per 1 nanoparticle. The presence of a paclitaxel shell with a high grafting density renders the product soluble in organic solvents and allows for detailed H-1 NMR analysis and, therefore, definitive confirmation of its chemical structure. High-resolution TEM was employed for direct visualization of the inorganic core of hybrid nanoparticles, which were found to retain their average size, shape, and high crystallinity after multiple synthetic steps and purifications. The interparticle distance substantially increases after the attachment of paclitaxel as revealed by low-magnification TEM, suggesting the presence of a larger organic shell. The method described here demonstrates that organic molecules with exceedingly complex structures can be covalently attached to gold nanocrystals in a controlled manner and fully characterized by traditional analytical techniques. In addition, this approach gives a rare opportunity to prepare hybrid particles with a well-defined amount of drug and offers a new alternative for the design of nanosized drug-delivery systems.

  DOI：

  10.1021/ja075181k