(E)-4-硝基苯甲醛O-甲基肟 | 54615-10-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: (E)-4-硝基苯甲醛O-甲基肟
• 英文名称: (E)-4-nitrobenzaldehyde O-methyl oxime
• 英文别名: 4-nitrobenzaldehyde methyl oxime；E-O-methyl-p-nitrobenzaldoxime；4-nitro-benzaldehyde-(O-methyl-seqtrans-oxime )；4-Nitro-benzaldehyd-(O-methyl-seqtrans-oxim)；4-Nitro-α-benzaldoxim-O-methylaether；O-Methyl-4-nitro-α-benzaldoxim；p-Nitrobenzaldehyde O-methyloxime；(E)-N-methoxy-1-(4-nitrophenyl)methanimine
• CAS: 54615-10-0
• 化学式: C₈H₈N₂O₃
• 分子量: 180.163
• InChiKey: ONZBYRQWJOKYPR-RMKNXTFCSA-N

物化性质

• 熔点：
  103-106 °C
• 沸点：
  287.3±42.0 °C(Predicted)
• 密度：
  1.21±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  67.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (E)-4-硝基苯甲醛O-甲基肟 在 N-氯代丁二酰亚胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 48.0h， 以39%的产率得到(Z)-O-methyl-p-nitrobenzohydroximoyl chloride
  参考文献：
  名称：

  Synthesis and methemoglobinemia-inducing properties of analogues of para-aminopropiophenone designed as humane rodenticides

  摘要：

  A number of structural analogues of the known toxicant para-aminopropiophenone (PAPP) have been prepared and evaluated for their capacity to induce methemoglobinemia-with a view to their possible application as humane pest control agents. It was found that an optimal lipophilicity for the formation of methemoglobin (metHb) in vitro existed for alkyl analogues of PAPP (aminophenones 1-20; compound 6 metHb% = 74.1 +/- 2). Besides lipophilicity, this structural sub-class suggested there were certain structural requirements for activity, with both branched (10-16) and cyclic (17-20) alkyl analogues exhibiting inferior in vitro metHb induction. Of the four candidates (compounds 4, 6, 13 and 23) evaluated in vivo, 4 exhibited the greatest toxicity. In parallel, aminophenone bioisosteres, including oximes 30-32, sulfoxide 33, sulfone 34 and sulfonamides 35-36, were found to be inferior metHb inducers to lead ketone 4. Closer examination of Hammett substituent constants suggests that a particular combination of the field and resonance parameters may be significant with respect to the redox mechanisms behind PAPPs metHb toxicity. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2013.10.046
• 作为产物：
  描述：

  对硝基苯甲醛 在 盐酸羟胺 、 sodium hydroxide 作用下， 以 乙醇 、 水 、 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 3.67h， 生成 (E)-4-硝基苯甲醛O-甲基肟
  参考文献：
  名称：

  Synthesis and methemoglobinemia-inducing properties of analogues of para-aminopropiophenone designed as humane rodenticides

  摘要：

  A number of structural analogues of the known toxicant para-aminopropiophenone (PAPP) have been prepared and evaluated for their capacity to induce methemoglobinemia-with a view to their possible application as humane pest control agents. It was found that an optimal lipophilicity for the formation of methemoglobin (metHb) in vitro existed for alkyl analogues of PAPP (aminophenones 1-20; compound 6 metHb% = 74.1 +/- 2). Besides lipophilicity, this structural sub-class suggested there were certain structural requirements for activity, with both branched (10-16) and cyclic (17-20) alkyl analogues exhibiting inferior in vitro metHb induction. Of the four candidates (compounds 4, 6, 13 and 23) evaluated in vivo, 4 exhibited the greatest toxicity. In parallel, aminophenone bioisosteres, including oximes 30-32, sulfoxide 33, sulfone 34 and sulfonamides 35-36, were found to be inferior metHb inducers to lead ketone 4. Closer examination of Hammett substituent constants suggests that a particular combination of the field and resonance parameters may be significant with respect to the redox mechanisms behind PAPPs metHb toxicity. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2013.10.046

文献信息

• Nitrile-forming eliminations from oxime ethers
  作者：Anthony F. Hegarty、Patrick J. Tuohey

  DOI：10.1039/p29800001313

  日期：——

  The oxime ethers (7) and (8)(R = alkyl or aryl) undergo base-catalysed elimination to benzonitriles (3) in water–dioxan (4 : 1) at 25°. The Z-isomer (8Z) reacts via hydroxide-catalysed antiperiplanar elimination 70-fold more rapidly than the corresponding E-isomer. Electronic effects on syn-elimination (from 7E) show that electronwithdrawing groups aid elimination in both Ar and in the leaving group

  肟醚（7）和（8）（R =烷基或芳基）在水-二恶烷（4：1）中于25°进行碱催化消除为苄腈（3）。所述ž -异构体（8 Ž）反应经由比相应的氢氧化物催化antiperiplanar消除70倍更迅速ë -异构体。电子效应SYN在剔除（7 ē）显示，电子基团的援助消除双方AR和离去基团- OR; 在这些底物中未观察到分子内辅助。这些结果可以通过消除中央的E 2来解释，在过渡态中C–H和N–O–键会明显断裂。
• Ruthenium-catalysed conversion of oxime ethers into nitriles
  作者：Naveen Anand、Nathan A. Owston、Alexandra J. Parker、Paul A. Slatford、Jonathan M.J. Williams

  DOI：10.1016/j.tetlet.2007.09.028

  日期：2007.10

  The conversion of oxime ethers into nitriles has been achieved under neutral conditions using Ru(CO)(PPh3)3H2 and the bidentate ligand Xantphos as the catalyst.

  使用Ru（CO）（PPh 3）3 H 2和二齿配体Xantphos作为催化剂，在中性条件下实现了肟醚向腈的转化。
• 一种O-/N-烷基取代羟胺盐的制备方法
  申请人：诚弘制药（威海）有限责任公司

  公开号：CN113636953A

  公开（公告）日：2021-11-12

  本发明涉及一种N‑/O‑烷基取代羟胺盐的制备方法，属于精细化工、农药或原料药化工技术领域。本发明以肟的N‑/O‑烷基化物与羟胺无机盐反应，生成N‑/O‑烷基取代羟胺无机盐和肟。本发明通过前所未有的羟胺交换发明，提供一种高效、环保制备N‑/O‑烷基取代羟胺盐的方法，制备N‑/O‑烷基取代羟胺无机盐的同时，肟可经重新制备生成肟的N‑/O‑烷基化物，实现物料循环；反应过程无需使用当量的酸、碱中和，避免了现行方法使用大量酸、碱和产生无机盐固废缺点，更加绿色环保。而且所述的制备方法反应条件温和，避免了传统工艺高污染、高耗能的缺点。其中，R1、R2、R如权利要求和说明书所述。
• Design, Synthesis, Bioactivity, and Structure−Activity Relationship (SAR) Studies of Novel Benzoylphenylureas Containing Oxime Ether Group
  作者：Ranfeng Sun、Maoyun Lü、Li Chen、Qingshan Li、Haibin Song、Fuchun Bi、Runqiu Huang、Qingmin Wang

  DOI：10.1021/jf801901h

  日期：2008.12.10

  Novel benzoylphenylureas containing an oxime ether group were designed and synthesized by four schemes. These benzoylphenylureas were identified by (1)H NMR spectroscopy and element analysis (or HRMS). The bioactivities of the new compounds were evaluated. These benzoylphenylureas exhibited excellent larvicidal activities against oriental armyworm, some of which were much better in comparison with

  通过四种方案设计并合成了含有肟醚基的新型苯甲酰基苯基脲。这些苯甲酰基苯基脲通过（1）NMR光谱和元素分析（或HRMS）鉴定。评价了新化合物的生物活性。这些苯甲酰基苯基脲具有优异的杀灭东方粘虫的杀幼虫活性，与市售的氟环草隆相比，其中一些更好。特别是，化合物1和23对东方粘虫的杀幼虫活性比氟环草隆的杀虫活性高5-10倍。这些苯甲酰苯乙脲大多数都表现出优异的杀灭蚊子的杀幼虫活性。同时，其中一些化合物也具有良好的植物生长调节活性。
• Brady; Goldstein, Journal of the Chemical Society, 1926, p. 2409
  作者：Brady、Goldstein

  DOI：——

  日期：——