2,3,4,5,6-Pentafluoro-benzoic acid 4-hydroxy-butyl ester | 217969-77-2

• 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: 2,3,4,5,6-Pentafluoro-benzoic acid 4-hydroxy-butyl ester
• 英文别名: 4-Hydroxybutyl 2,3,4,5,6-pentafluorobenzoate
• CAS: 217969-77-2
• 化学式: C₁₁H₉F₅O₃
• 分子量: 284.183
• InChiKey: VFMJUIMDPLKXBO-UHFFFAOYSA-N

物化性质

• 沸点：
  345.4±42.0 °C(Predicted)
• 密度：
  1.454±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  19
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  2,3,4,5,6-Pentafluoro-benzoic acid 4-hydroxy-butyl ester 在 sodium azide 、 三乙胺 、 三氯氧磷 作用下， 以 二氯甲烷 、 氯仿 、 丙酮 为溶剂， 反应 7.08h， 生成 4-Bis[amino(methyl)amino]phosphinothioyloxybutyl 4-(cyclohexylamino)-2,3,5,6-tetrafluorobenzoate
  参考文献：
  名称：

  Chemistry of Bifunctional Photoprobes.¹ 3. Correlation between the Efficiency of CH Insertion by Photolabile Chelating Agents and Lifetimes of Singlet Nitrenes by Flash Photolysis:  First Example of Photochemical Attachment of ^99mTc−Complex with Human Serum Albumin

  摘要：

  Systematic functionalization of perfluoroaryl azides with chelating agents capable of complexing transition metals produces a new class of bifunctional photolabile chelating agents (BFPCAs). The strategy to shield the azide functionality from the electronic and steric influence of the electron-rich metal Pd through ester and amide bridges raised CH insertion efficiency to unprecedented levels (>92%) in a model solvent (cyclohexane). In contrast, perfluoroaryl azides attached to chelating agents via hydrazones show no significant CH insertion in cyclohexane upon photolysis. Measurements of the lifetimes of the singlet nitrenes derived from these agents by flash photolysis techniques correlate well with the efficiency of CH insertion by demonstrating longer lifetimes (10-50 times) for singlet nitrenes derived from azidotetrafluorinated esters and amides compared with the related hydrazones, which failed to yield significant CH insertion. A representative BFPCA 12 is chelated to diagnostic radionuclide Tc-94m and covalently attached to human serum albumin via photochemical activation extending the favorable bimolecular insertion characteristics of BFPCA to tracer level concentrations in buffer conditions. Flash photolysis experiments correlate singlet nitrene lifetimes with the efficiency of intermolecular insertion reactions. This work provides new photo-cross-linking technology, useful in radiodiagnostics and radiotherapy in nuclear medicine.

  DOI：

  10.1021/jo981458a
• 作为产物：
  描述：

  1,4-丁二醇 、 五氟苯甲酰氯 以 四氢呋喃 为溶剂， 以78%的产率得到2,3,4,5,6-Pentafluoro-benzoic acid 4-hydroxy-butyl ester
  参考文献：
  名称：

  Chemistry of Bifunctional Photoprobes.¹ 3. Correlation between the Efficiency of CH Insertion by Photolabile Chelating Agents and Lifetimes of Singlet Nitrenes by Flash Photolysis:  First Example of Photochemical Attachment of ^99mTc−Complex with Human Serum Albumin

  摘要：

  Systematic functionalization of perfluoroaryl azides with chelating agents capable of complexing transition metals produces a new class of bifunctional photolabile chelating agents (BFPCAs). The strategy to shield the azide functionality from the electronic and steric influence of the electron-rich metal Pd through ester and amide bridges raised CH insertion efficiency to unprecedented levels (>92%) in a model solvent (cyclohexane). In contrast, perfluoroaryl azides attached to chelating agents via hydrazones show no significant CH insertion in cyclohexane upon photolysis. Measurements of the lifetimes of the singlet nitrenes derived from these agents by flash photolysis techniques correlate well with the efficiency of CH insertion by demonstrating longer lifetimes (10-50 times) for singlet nitrenes derived from azidotetrafluorinated esters and amides compared with the related hydrazones, which failed to yield significant CH insertion. A representative BFPCA 12 is chelated to diagnostic radionuclide Tc-94m and covalently attached to human serum albumin via photochemical activation extending the favorable bimolecular insertion characteristics of BFPCA to tracer level concentrations in buffer conditions. Flash photolysis experiments correlate singlet nitrene lifetimes with the efficiency of intermolecular insertion reactions. This work provides new photo-cross-linking technology, useful in radiodiagnostics and radiotherapy in nuclear medicine.

  DOI：

  10.1021/jo981458a

文献信息

• 一种绿色的可见光催化的乙酸酯化合物的制备方法
  申请人：苏州大学

  公开号：CN113754574A

  公开（公告）日：2021-12-07

  本发明公开了一种绿色的可见光催化的乙酸酯化合物的制备方法，该方法中以LED灯作为光源提供能量，经济易得的一、二、三级醇作为反应底物，三氟甲磺酸铈为催化剂，市场可购买的2,3‑丁二酮为原料。与现有技术相比较，本发明方法具有以下优点：1)采用绿色、温和、高效、节能、环境友好的可见光催化的反应模式；2)反应体系简单且底物范围广，一、二、三级醇均适用于该方法；3）无需添加脱水剂；4)反应产率较高；5)操作比较简单；6)原料廉价易得；7）反应可以实现克级规模及药物分子的后期修饰。
• US7745424B2
  申请人：——

  公开号：US7745424B2

  公开（公告）日：2010-06-29
• Chemistry of Bifunctional Photoprobes.¹ 3. Correlation between the Efficiency of CH Insertion by Photolabile Chelating Agents and Lifetimes of Singlet Nitrenes by Flash Photolysis:  First Example of Photochemical Attachment of ^99mTc−Complex with Human Serum Albumin
  作者：Raghoottama S. Pandurangi、Przemyslaw Lusiak、Robert R. Kuntz、Wynn A. Volkert、Jacek Rogowski、Matthew S. Platz

  DOI：10.1021/jo981458a

  日期：1998.11.1

  Systematic functionalization of perfluoroaryl azides with chelating agents capable of complexing transition metals produces a new class of bifunctional photolabile chelating agents (BFPCAs). The strategy to shield the azide functionality from the electronic and steric influence of the electron-rich metal Pd through ester and amide bridges raised CH insertion efficiency to unprecedented levels (>92%) in a model solvent (cyclohexane). In contrast, perfluoroaryl azides attached to chelating agents via hydrazones show no significant CH insertion in cyclohexane upon photolysis. Measurements of the lifetimes of the singlet nitrenes derived from these agents by flash photolysis techniques correlate well with the efficiency of CH insertion by demonstrating longer lifetimes (10-50 times) for singlet nitrenes derived from azidotetrafluorinated esters and amides compared with the related hydrazones, which failed to yield significant CH insertion. A representative BFPCA 12 is chelated to diagnostic radionuclide Tc-94m and covalently attached to human serum albumin via photochemical activation extending the favorable bimolecular insertion characteristics of BFPCA to tracer level concentrations in buffer conditions. Flash photolysis experiments correlate singlet nitrene lifetimes with the efficiency of intermolecular insertion reactions. This work provides new photo-cross-linking technology, useful in radiodiagnostics and radiotherapy in nuclear medicine.