N,N-dimethyl-4-((Z)-phenylimino-methyl)-aniline | 40339-45-5

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: N,N-dimethyl-4-((Z)-phenylimino-methyl)-aniline
• 英文别名: N,N-dimethyl-4-((Z)-phenylimino-methyl)-aniline；syn-N-(p-Dimethylamino-benzal)-anilin
• CAS: 40339-45-5
• 化学式: C₁₅H₁₆N₂
• 分子量: 224.305
• InChiKey: MFFDJRYGVWMCQY-VBKFSLOCSA-N

物化性质

• 沸点：
  363.8±25.0 °C(Predicted)
• 密度：
  0.97±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  17.0
• 可旋转键数：
  3.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  15.6
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  N,N-dimethyl-4-((Z)-phenylimino-methyl)-aniline 以 苯 为溶剂， 生成 N-(4-二甲氨基苄亚基)苯胺
  参考文献：
  名称：

  Mechanism of thermal Z/E isomerization of substituted N-benzylideneanilines. Nature of the activated complex with an sp-hybridized nitrogen atom

  摘要：

  In order to study the mechanism of thermal geometrical isomerization involving a sp2-hybridized nitrogen atom, kinetic effects of substituent, solvent, and pressure were studied in substituted N-benzylideneanilines. The effect of the substituent on the aniline moiety was almost independent of the electronic nature of the benzylidene group, and the results could be described satisfactorily by log (k/k(o)) = rho[sigma-degrees + r+(sigma+-sigma-degrees)+ r-(sigma--sigma-degrees)], except for the 4-(dimethylamino) group. The r- values were more than twice as large as r+, suggesting strongly that the aniline ring is in conjugation not with the carbon-nitrogen pi bond but with the nitrogen lone pair in the transition state. The lower activation enthalpies and fairly large negative activation entropies observed in N-(4-X-benzylidene)4-nitroanilines also support this view. When a dimethylamino group exists in the 4-position of the aniline ring, the rate constants observed were larger than that expected from the above equation. This deviation suggests the existence of a reaction route where the two phenyl groups become coplanar in the transition state. Ab initio calculations on selected N-phenylformaldimines and N-benzylideneanilines were performed to characterize the actual relation between both reaction possibilities as alternative and parallel routes, respectively. On the basis of the experimental data, the rate constants for the two inversion isomerizations were estimated by assuming parallel reactions for three cases.

  DOI：

  10.1021/jo00068a042
• 作为产物：
  描述：

  苯胺 、 对二甲氨基苯甲醛 生成 N,N-dimethyl-4-((Z)-phenylimino-methyl)-aniline
  参考文献：
  名称：

  Mechanism of thermal Z/E isomerization of substituted N-benzylideneanilines. Nature of the activated complex with an sp-hybridized nitrogen atom

  摘要：

  In order to study the mechanism of thermal geometrical isomerization involving a sp2-hybridized nitrogen atom, kinetic effects of substituent, solvent, and pressure were studied in substituted N-benzylideneanilines. The effect of the substituent on the aniline moiety was almost independent of the electronic nature of the benzylidene group, and the results could be described satisfactorily by log (k/k(o)) = rho[sigma-degrees + r+(sigma+-sigma-degrees)+ r-(sigma--sigma-degrees)], except for the 4-(dimethylamino) group. The r- values were more than twice as large as r+, suggesting strongly that the aniline ring is in conjugation not with the carbon-nitrogen pi bond but with the nitrogen lone pair in the transition state. The lower activation enthalpies and fairly large negative activation entropies observed in N-(4-X-benzylidene)4-nitroanilines also support this view. When a dimethylamino group exists in the 4-position of the aniline ring, the rate constants observed were larger than that expected from the above equation. This deviation suggests the existence of a reaction route where the two phenyl groups become coplanar in the transition state. Ab initio calculations on selected N-phenylformaldimines and N-benzylideneanilines were performed to characterize the actual relation between both reaction possibilities as alternative and parallel routes, respectively. On the basis of the experimental data, the rate constants for the two inversion isomerizations were estimated by assuming parallel reactions for three cases.

  DOI：

  10.1021/jo00068a042

文献信息

• A convenient synthesis of α-amino-β-lactams
  作者：Ajay K. Bose、M.S. Manhas、J.M. van der Veen、S.G. Amin、I.F. Fernandez、K. Gala、R. Gruska、J.C. Kapur、M.S. Khajavi、J. Kreder、L. Mukkavilli、B. Ram、M. Sugiura、J.E. Vincent

  DOI：10.1016/s0040-4020(01)88885-2

  日期：1981.1

  A safe and convenient method is described for the synthesis of α-amido-β-lactams starting with glycine and an azomethine. The amino group of glycine is protected by reaction with a β-dicarbonyl compound following the method of Dane etal. and the carboxyl group is activated through the formation of a mixed anhydride or an active ester. Condensation between these glycine derivatives and acyclic or cyclic

  描述了一种安全，方便的方法，用于从甘氨酸和偶氮甲碱开始合成α-酰胺基-β-内酰胺。按照Dane等人的方法，通过与β-二羰基化合物反应来保护甘氨酸的氨基。羧基通过形成混合酸酐或活性酯而被活化。在三乙胺存在下，这些甘氨酸衍生物与无环或环状亚氨基化合物（包括硫代亚氨酸酯）之间的缩合导致3-（β-羰基-乙烯基氨基）-2-氮杂环丁酮的立体定向合成，产率为40-60％。乙烯基氨基侧链可在弱酸条件下水解形成3-氨基-2-氮杂环丁酮，其可被酰化为α-酰胺基-β-内酰胺。或者，可以通过臭氧分解将乙烯基氨基侧链转化为酰胺侧链。通过X射线晶体学测定3-（β-羰基-乙烯基氨基）-2-氮杂环丁酮的分子参数。通过制备同位素标记的β-内酰胺和某些β-内酰胺抗生素的中间体，可以说明这种α-酰胺基-β-内酰胺合成的有用性。
• Guertler; Ruf; Johner, Pharmazie, 1996, vol. 51, # 11, p. 811 - 815
  作者：Guertler、Ruf、Johner、Otto

  DOI：——

  日期：——
• KERZHNER, B. K.;KOFANOV, V. I.;VRUBEL, T. L., J. LIQUID CHROMATOGR., 11,(1988) N5, C. 3091-3102
  作者：KERZHNER, B. K.、KOFANOV, V. I.、VRUBEL, T. L.

  DOI：——

  日期：——