1-(5-hydroxy-1-phenyl-1H-pyrazol-4-yl)ethan-1-one | 635288-50-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 1-(5-hydroxy-1-phenyl-1H-pyrazol-4-yl)ethan-1-one
• CAS: 635288-50-5
• 化学式: C₁₁H₁₀N₂O₂
• 分子量: 202.213
• InChiKey: STSCCDBCFZPQSF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.78
• 重原子数：
  15.0
• 可旋转键数：
  2.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.09
• 拓扑面积：
  55.12
• 氢给体数：
  1.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  1-(5-hydroxy-1-phenyl-1H-pyrazol-4-yl)ethan-1-one 在 硫酸 、 溶剂黄146 、 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 为溶剂， 反应 26.0h， 生成 1,6-diphenyl-1H-pyrano[2,3-c]pyrazol-4-one
  参考文献：
  名称：

  New 1-Substituted 4-Cinnamoyl-5- hydroxypyrazoles and Precursors thereof: Synthesis, Ring Closure Reactions and NMR-Spectroscopic Investigations

  摘要：

  Reaction of 1-substituted 5-hydroxy-1H-pyrazoles (pyrazolones) with trans-cinnamoyl chloride/calcium hydroxide in dioxane affords the corresponding 4-cinnamoyl-5-hydroxy-1H-pyrazoles. Cyclization of the latter into 5,6-dihydropyrano[2,3-c]pyrazol-4-ones proceeds in very low yields upon treatment with concentrated sulfuric acid. 1,6-Diphenyl-1H-pyrano[2,3-c]pyrazol-4-one was synthesized by reaction of of 4-acetyl-5-hydroxy-1-phenyl-1H-pyrazole with benzoyl chloride and lithium bis(trimethylsilyl)amide and subsequent cyclization of the thus obtained 1,3-diketone. NMR-spectroscopic investigations with the obtained 4-substituted 5-hydroxypyrazoles and their precursors regarding their tautomeric behavior in various solvents are presented.

  DOI：

  10.3987/com-03-9857
• 作为产物：
  描述：

  乙酰氯 、 1-Phenyl-1H-pyrazol-5-ol 在 calcium hydroxide 作用下， 以 1,4-二氧六环 为溶剂， 反应 2.0h， 以54%的产率得到1-(5-hydroxy-1-phenyl-1H-pyrazol-4-yl)ethan-1-one
  参考文献：
  名称：

  关于吡唑啉酮的互变异构性：双子2 J [吡唑C-4，H-3（5）]自旋耦合常数作为诊断工具

  摘要：

  已通过13 C-和1 H NMR光谱方法研究了在3（5）位未取代的吡唑啉酮的互变异构现象。除了化学位移方面的考虑和NOE影响外，双峰2 J [吡唑C-4，H3（5）]的自旋偶合常数还允许1 H-吡唑-5-醇（OH）和1,2-的明确区分。二氢-3 H-吡唑-3-酮（NH）形式。在1，2-二氢-3 H中，1 H-吡唑-5-醇和2,4-二氢-3 H-吡唑-3-酮（CH形式）的2 J值约为9–11 Hz。-吡唑-3-酮，该偶联常数显着降低至4-5 Hz。这主要归因于由于质子化或烷基化而除去了吡唑N -1中的吡咯N -1的孤对。根据获得的数据，2-取代的4-酰基-1,2-二氢-3 H-吡唑-3-酮主要以吡唑-5-醇的形式存在于CDCl 3或苯-d 6溶液中，而在DMSO- d中6少量的NH互变异构体也可能有助于互变异构体的组成。2,4-二氢-2-苯基-3 H-吡唑-3-酮（1-苯基-2-吡唑啉-5-酮）仅以CH形式存在于CDCl

  DOI：

  10.1016/j.tet.2004.06.039

文献信息

• METHOD OF TREATING CANCER WITH SUBSTITUTED AMIDE DERIVATIVES
  申请人：KIM Tae-Seong

  公开号：US20120070413A1

  公开（公告）日：2012-03-22

  Selected compounds are effective for prophylaxis and treatment of diseases, such as HGF mediated diseases. The invention encompasses novel compounds, analogs, prodrugs and pharmaceutically acceptable salts thereof, pharmaceutical compositions and methods for prophylaxis and treatment of diseases and other maladies or conditions involving, cancer and the like. The subject invention also relates to processes for making such compounds as well as to intermediates useful in such processes.

  选定的化合物对于预防和治疗疾病，如HGF介导的疾病非常有效。本发明包括新颖的化合物、类似物、前药和其药学上可接受的盐、制药组合物以及用于预防和治疗涉及癌症等疾病和其他疾病或情况的方法。本发明还涉及制备这些化合物的过程以及在这些过程中有用的中间体。
• SUBSTITUTED AMIDE DERIVATIVES AND METHODS OF USE
  申请人：Kim Tae-Seong

  公开号：US20110118252A1

  公开（公告）日：2011-05-19

  Selected compounds are effective for prophylaxis and treatment of diseases, such as HGF mediated diseases. The invention encompasses novel compounds, analogs, prodrugs and pharmaceutically acceptable salts thereof, pharmaceutical compositions and methods for prophylaxis and treatment of diseases and other maladies or conditions involving, cancer and the like. The subject invention also relates to processes for making such compounds as well as to intermediates useful in such processes.

  选定的化合物对于预防和治疗疾病，如HGF介导的疾病具有有效性。该发明包括新型化合物、类似物、前药和其药学上可接受的盐、药物组合物以及预防和治疗癌症等疾病和其他疾病或状况的方法。本发明还涉及制备这些化合物的过程以及在这些过程中有用的中间体。
• US8088794B2
  申请人：——

  公开号：US8088794B2

  公开（公告）日：2012-01-03
• On the tautomerism of pyrazolones: the geminal 2J[pyrazole C-4,H-3(5)] spin coupling constant as a diagnostic tool
  作者：Wolfgang Holzer、Constanze Kautsch、Christian Laggner、Rosa M. Claramunt、Marta Pérez-Torralba、Ibon Alkorta、José Elguero

  DOI：10.1016/j.tet.2004.06.039

  日期：2004.8

  NOE effects the magnitude of the geminal 2J[pyrazole C-4,H3(5)] spin coupling constant permits the unambiguous differentiation between 1H-pyrazol-5-ol (OH) and 1,2-dihydro-3H-pyrazol-3-one (NH) forms. Whereas 1H-pyrazol-5-ols and 2,4-dihydro-3H-pyrazol-3-ones (CH-form) exhibit 2J values of approximately 9–11 Hz, in 1,2-dihydro-3H-pyrazol-3-ones this coupling constant is considerably reduced to 4–5 Hz

  已通过13 C-和1 H NMR光谱方法研究了在3（5）位未取代的吡唑啉酮的互变异构现象。除了化学位移方面的考虑和NOE影响外，双峰2 J [吡唑C-4，H3（5）]的自旋偶合常数还允许1 H-吡唑-5-醇（OH）和1,2-的明确区分。二氢-3 H-吡唑-3-酮（NH）形式。在1，2-二氢-3 H中，1 H-吡唑-5-醇和2,4-二氢-3 H-吡唑-3-酮（CH形式）的2 J值约为9–11 Hz。-吡唑-3-酮，该偶联常数显着降低至4-5 Hz。这主要归因于由于质子化或烷基化而除去了吡唑N -1中的吡咯N -1的孤对。根据获得的数据，2-取代的4-酰基-1,2-二氢-3 H-吡唑-3-酮主要以吡唑-5-醇的形式存在于CDCl 3或苯-d 6溶液中，而在DMSO- d中6少量的NH互变异构体也可能有助于互变异构体的组成。2,4-二氢-2-苯基-3 H-吡唑-3-酮（1-苯基-2-吡唑啉-5-酮）仅以CH形式存在于CDCl
• New 1-Substituted 4-Cinnamoyl-5- hydroxypyrazoles and Precursors thereof: Synthesis, Ring Closure Reactions and NMR-Spectroscopic Investigations
  作者：Wolfgang Holzer、Ingrid Krca

  DOI：10.3987/com-03-9857

  日期：——

  Reaction of 1-substituted 5-hydroxy-1H-pyrazoles (pyrazolones) with trans-cinnamoyl chloride/calcium hydroxide in dioxane affords the corresponding 4-cinnamoyl-5-hydroxy-1H-pyrazoles. Cyclization of the latter into 5,6-dihydropyrano[2,3-c]pyrazol-4-ones proceeds in very low yields upon treatment with concentrated sulfuric acid. 1,6-Diphenyl-1H-pyrano[2,3-c]pyrazol-4-one was synthesized by reaction of of 4-acetyl-5-hydroxy-1-phenyl-1H-pyrazole with benzoyl chloride and lithium bis(trimethylsilyl)amide and subsequent cyclization of the thus obtained 1,3-diketone. NMR-spectroscopic investigations with the obtained 4-substituted 5-hydroxypyrazoles and their precursors regarding their tautomeric behavior in various solvents are presented.