1-(4-nitrobenzyl)-4,5-dihydro-1H-pyrazole | 1360058-26-9

• 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: 1-(4-nitrobenzyl)-4,5-dihydro-1H-pyrazole
• CAS: 1360058-26-9
• 化学式: C₁₀H₁₁N₃O₂
• 分子量: 205.216
• InChiKey: QQNREPNCJCVZTB-UHFFFAOYSA-N

物化性质

• 沸点：
  379.5±44.0 °C(Predicted)
• 密度：
  1.30±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.79
• 重原子数：
  15.0
• 可旋转键数：
  3.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  58.74
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  6-(4-ethoxyphenyl)-1,5-diazabicyclo[3.1.0]hexane 、 对硝基苯甲醛 在 三氟化硼乙醚 、 1-butyl-3-methylimidazolium Tetrafluoroborate 作用下， 反应 72.0h， 生成 1-(4-nitrobenzyl)-4,5-dihydro-1H-pyrazole
  参考文献：
  名称：

  Metathesis of azomethine imines in the reaction of 6-aryl-1,5-diazabicyclo[3.1.0]hexanes with carbonyl compounds

  摘要：

  An interaction of carbonyl compounds (isatins, 4-nitrobenzaldehyde) with azomethine imines generated by the diaziridine ring opening in 6-aryl-1,5-diazabicyclo[3.1.0]hexanes in the presence of BF3 center dot Et2O as a catalyst induced the metathesis to other azomethine imines with the elimination of aldehydes ArCHO. New azomethine imines were trapped with diethyl acetylenedicarboxylate, otherwise they transformed to the corresponding pyrazolines due to a 1,4-H shift.

  DOI：

  10.1016/j.mencom.2012.01.012

文献信息

• Generation and metathesis of azomethine imines in reaction of 6-aryl-1,5-diazabicyclo[3.1.0]hexanes with het(aryl)methylidenemalononitriles
  作者：M. I. Pleshchev、V. Yu. Petukhova、V. V. Kuznetsov、D. V. Khakimov、T. S. Pivina、Yu. V. Nelyubina、N. N. Makhova

  DOI：10.1007/s11172-013-0143-9

  日期：2013.4

  give in situ new azomethine imines inaccessible by common synthetic methods. New azomethine imines are detected as pyrazolines formed via a 1,4-H shift and trapped by the [3+2] cycloaddition with various dipolarophiles to yield 1,5-diazabicyclo[3.3.0]octane derivatives bearing pharmacophoric heterocycles, e.g. furan, nitrofuran, thiophene, and indole. The best results are achieved in the Et2O·BF3-catalyzed

  发现了偶氮甲碱亚胺的新复分解反应。6-芳基-1,5-二氮杂双环[3.1.0]己烷的催化或热二氮丙啶开环导致偶氮甲亚胺与杂（芳基）亚甲基丙二腈进一步反应，原位生成新的偶氮甲亚胺，这是普通合成方法无法获得的。新的偶氮甲碱亚胺被检测为通过 1,4-H 位移形成的吡唑啉，并通过 [3+2] 环加成与各种偶极试剂捕获，产生带有药效杂环的 1,5-二氮杂双环 [3.3.0] 辛烷衍生物，例如呋喃，硝基呋喃、噻吩和吲哚。在 Et2O·BF3 催化的离子液体反应中取得了最好的结果。
• Metathesis of Azomethine Imines in Reaction of 6-aryl-1,5-Diazabicyclo[3.1.0]Hexanes with (Het)Arylidenemalononitriles
  作者：Mikhail I. Pleshchev、Vera Yu. Petukhova、Vladimir V. Kuznetsov、Dmitriy V. Khakimov、Tatyana S. Pivina、Marina I. Struchkova、Yulia V. Nelyubina、Nina N. Makhova

  DOI：10.1016/j.mencom.2013.01.012

  日期：2013.1

  Ring opening in 6-aryl-1,5-diazabicyclo[3.1.0]hexanes gives cyclic azomethine imines which are prone to exchange of arylidene moiety with (het)arylidenemalononitriles to form the metathesis products being new azomethine imines. These species were fixed as pyrazolines due to the 1,4-H shift or trapped by dimethyl acetylenedicarboxylate or CS2.