syn-(2-aminophenyl)(4-bromophenyl)methanone oxime | 1010690-99-9

• 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: syn-(2-aminophenyl)(4-bromophenyl)methanone oxime
• 英文别名: (NE)-N-[(2-aminophenyl)-(4-bromophenyl)methylidene]hydroxylamine
• CAS: 1010690-99-9
• 化学式: C₁₃H₁₁BrN₂O
• 分子量: 291.147
• InChiKey: NSEQENAXAVARSS-DTQAZKPQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  58.6
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  syn-(2-aminophenyl)(4-bromophenyl)methanone oxime 在 咪唑 、 碘 、 三苯基膦 作用下， 以 二氯甲烷 为溶剂， 反应 4.0h， 以75%的产率得到3-(4-bromophenyl)-1H-indazole
  参考文献：
  名称：

  Mild method for the synthesis of 1H-indazoles through oxime-phosphonium ion intermediate

  摘要：

  The synthesis of 1H-indazoles from o-aminobenzoximes is achieved via N-N bond formation using triphenylphosphine, 12, and imidazole. Selective formation of oxime-phosphonium ion intermediate in the presence of the amino group is the driving force for this reaction. The nucleophilicity of the arylamino group and electrophilicity toward the N-O bond of oxime also control the reaction. The reaction proceeds at a faster rate with good to excellent yield under this mild reaction condition and is amenable to scale-up. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2014.03.001
• 作为产物：
  描述：

  2-氨基-4'-溴二苯甲酮 在 盐酸羟胺 、 sodium hydroxide 作用下， 以 乙醇 、 水 为溶剂， 生成 syn-(2-aminophenyl)(4-bromophenyl)methanone oxime
  参考文献：
  名称：

  Mild method for the synthesis of 1H-indazoles through oxime-phosphonium ion intermediate

  摘要：

  The synthesis of 1H-indazoles from o-aminobenzoximes is achieved via N-N bond formation using triphenylphosphine, 12, and imidazole. Selective formation of oxime-phosphonium ion intermediate in the presence of the amino group is the driving force for this reaction. The nucleophilicity of the arylamino group and electrophilicity toward the N-O bond of oxime also control the reaction. The reaction proceeds at a faster rate with good to excellent yield under this mild reaction condition and is amenable to scale-up. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2014.03.001

文献信息

• A Practical, Metal-Free Synthesis of 1<i>H</i>-Indazoles
  作者：Carla M. Counceller、Chad C. Eichman、Brenda C. Wray、James P. Stambuli

  DOI：10.1021/ol800053f

  日期：2008.3.1

  The synthesis of 1H-indazoles is achieved from o-aminobenzoximes by the selective activation of the oxime in the presence of the amino group. The reaction occurs with a variety of substituted o-aminobenzoximes using a slight excess of methanesulfonyl chloride and triethylamine at 0-23 degrees C and is amenable to scale-up. The synthesis of 1H-indazoles under these conditions is extremely mild compared

  1H-吲唑的合成是通过在氨基存在下肟的选择性活化，由邻氨基苯并肟实现的。该反应在0-23℃下使用稍微过量的甲磺酰氯和三乙胺与多种取代的邻氨基苯甲酰肟发生，并且可以放大。与以前的合成方法相比，在这些条件下1H-吲唑的合成非常温和，并以良好的产率提供了所需的化合物。