(C-benzyloxymethane-N-benzyl)nitrone | 192220-12-5

• 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: (C-benzyloxymethane-N-benzyl)nitrone
• 英文别名: N-[2-(phenylmethoxy)ethylidene]-benzenemethanamine N-oxide；N-[2-(benzyloxy)ethylidene]benzylamine oxide；N-benzyl-2-phenylmethoxyethanimine oxide
• CAS: 192220-12-5；199463-78-0
• 化学式: C₁₆H₁₇NO₂
• 分子量: 255.316
• InChiKey: LKDZJQQFFSQJIP-UHFFFAOYSA-N

物化性质

• 熔点：
  95-97 °C
• 沸点：
  468.6±34.0 °C(Predicted)
• 密度：
  1.103±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：
  2.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  38
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (C-benzyloxymethane-N-benzyl)nitrone 、 N-乙基苄胺 以 氘代苯 为溶剂， 反应 18.0h， 生成
  参考文献：
  名称：

  Catalysis through Temporary Intramolecularity: Mechanistic Investigations on Aldehyde-Catalyzed Cope-type Hydroamination Lead to the Discovery of a More Efficient Tethering Catalyst

  摘要：

  Mechanistic investigations on the aldehyde-catalyzed intermolecular hydroamination of allylic amines using N-alkylhydroxylamines are presented. Under the reaction conditions, the presence of a specific aldehyde catalyst allows formation of a mixed aminal intermediate, which permits intramolecular Cope-type hydroamination. The reaction was determined to be first-order in both the aldehyde catalyst (alpha-benzyloxyacetaldehyde) and the allylic amine. However, the reaction displays an inverse order behavior in benzylhydroxylamine, which reveals a significant off-cycle pathway and highlights the importance of an aldehyde catalyst that promotes a reversible aminal formation. Kinetic isotope effect experiments suggest that hydroamination is the rate-limiting step of this catalytic cycle. Overall, these results enabled the elaboration of a more accurate catalytic cycle and led to the development of a more efficient catalytic system for alkene hydroamination. The use of 5-10 mol % of paraformaldehyde proved more effective than the use of 20 mol % of a-benzyloxyacetaldehyde, leading to high yields of intermolecular hydroamination products within 24 h at 30 degrees C.

  DOI：

  10.1021/ja303320x
• 作为产物：
  描述：

  以 氘代苯 为溶剂， 反应 18.0h， 生成 (C-benzyloxymethane-N-benzyl)nitrone 、 N-乙基苄胺
  参考文献：
  名称：

  Catalysis through Temporary Intramolecularity: Mechanistic Investigations on Aldehyde-Catalyzed Cope-type Hydroamination Lead to the Discovery of a More Efficient Tethering Catalyst

  摘要：

  Mechanistic investigations on the aldehyde-catalyzed intermolecular hydroamination of allylic amines using N-alkylhydroxylamines are presented. Under the reaction conditions, the presence of a specific aldehyde catalyst allows formation of a mixed aminal intermediate, which permits intramolecular Cope-type hydroamination. The reaction was determined to be first-order in both the aldehyde catalyst (alpha-benzyloxyacetaldehyde) and the allylic amine. However, the reaction displays an inverse order behavior in benzylhydroxylamine, which reveals a significant off-cycle pathway and highlights the importance of an aldehyde catalyst that promotes a reversible aminal formation. Kinetic isotope effect experiments suggest that hydroamination is the rate-limiting step of this catalytic cycle. Overall, these results enabled the elaboration of a more accurate catalytic cycle and led to the development of a more efficient catalytic system for alkene hydroamination. The use of 5-10 mol % of paraformaldehyde proved more effective than the use of 20 mol % of a-benzyloxyacetaldehyde, leading to high yields of intermolecular hydroamination products within 24 h at 30 degrees C.

  DOI：

  10.1021/ja303320x

文献信息

• NOVEL INDOLIC DERIVATIVES, THEIR PREPARATION PROCESSES AND THEIR USES IN PARTICULAR AS ANTIBACTERIALS
  申请人：Denis Jean-Noel Marie Leon

  公开号：US20100144726A1

  公开（公告）日：2010-06-10

  The invention relates to the use of at least one compound of the formula (I), in which R and R 3 are particularly a hydrogen atom, R 1 is particularly a hydrogen atom or a methyl, ethyl or isobutyl mi group, R 4 , R 5 , R 6 and R 7 are independently a hydrogen atony, an alkoxyl group with 1 to 7 carbon atoms or a halogen atom, R 2 is a hydrogen atom, an O − group or an OH group, B is an N-GP 1 or NR c , group, GP 1 being a Boc or Cbz group, and R c is a hydrogen atom or a methyl or t-butyl group, for preparing a drug for treating conditions associated with bacterial infections, in particular for treating bacterial diseases.

  该发明涉及使用至少一种具有以下式（I）的化合物，其中R和R3特别是氢原子，R1特别是氢原子或甲基、乙基或异丁基mi基团，R4、R5、R6和R7独立地是氢原子、具有1至7个碳原子的烷氧基团或卤原子，R2是氢原子、O−基团或OH基团，B是N-GP1或NRc基团，GP1是Boc或Cbz基团，Rc是氢原子或甲基或叔丁基基团，用于制备用于治疗与细菌感染相关的疾病症状的药物，特别是用于治疗细菌性疾病。
• Catalysis through Temporary Intramolecularity: Mechanistic Investigations on Aldehyde-Catalyzed Cope-type Hydroamination Lead to the Discovery of a More Efficient Tethering Catalyst
  作者：Nicolas Guimond、Melissa J. MacDonald、Valérie Lemieux、André M. Beauchemin

  DOI：10.1021/ja303320x

  日期：2012.10.10

  Mechanistic investigations on the aldehyde-catalyzed intermolecular hydroamination of allylic amines using N-alkylhydroxylamines are presented. Under the reaction conditions, the presence of a specific aldehyde catalyst allows formation of a mixed aminal intermediate, which permits intramolecular Cope-type hydroamination. The reaction was determined to be first-order in both the aldehyde catalyst (alpha-benzyloxyacetaldehyde) and the allylic amine. However, the reaction displays an inverse order behavior in benzylhydroxylamine, which reveals a significant off-cycle pathway and highlights the importance of an aldehyde catalyst that promotes a reversible aminal formation. Kinetic isotope effect experiments suggest that hydroamination is the rate-limiting step of this catalytic cycle. Overall, these results enabled the elaboration of a more accurate catalytic cycle and led to the development of a more efficient catalytic system for alkene hydroamination. The use of 5-10 mol % of paraformaldehyde proved more effective than the use of 20 mol % of a-benzyloxyacetaldehyde, leading to high yields of intermolecular hydroamination products within 24 h at 30 degrees C.