2-iodo-5-(N,N-dimethylamino)benzaldehyde | 385416-65-9

• 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: 2-iodo-5-(N,N-dimethylamino)benzaldehyde
• 英文别名: 5-(dimethylamino)-2-iodobenzaldehyde；2-iodo-5-(dimethylamino)benzadehyde
• CAS: 385416-65-9
• 化学式: C₉H₁₀INO
• 分子量: 275.089
• InChiKey: VLQNVIQUMFSZQX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  20.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-iodo-5-(N,N-dimethylamino)benzaldehyde 在 palladium diacetate 、 sodium carbonate 、 三苯基膦 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 22.0h， 生成 7-dimethylamino-3,4-diphenylisoquinoline
  参考文献：
  名称：

  Synthesis of Isoquinolines and Pyridines by the Palladium-Catalyzed Iminoannulation of Internal Alkynes

  摘要：

  A wide variety of substituted isoquinoline, tetrahydroisoquinoline, 5,6-dihydrobenz[f]isoquinoline, pyrindine, and pyridine heterocycles have been prepared in good to excellent yields via annulation of internal acetylenes with the tert-butylimines of o-iodobenzaldehydes and 3-halo-2-alkenals in the presence of a palladium catalyst. The best results are obtained by employing 5 mol % of Pd(OAc)(2), an excess of the alkyne, 1 equiv of Na2CO3 as a base, and 10 mol % of PPh3 in DMF as the solvent. This annulation methodology is particularly effective for aryl- or alkenyl-substituted alkynes. When electron-rich imines are employed, this chemistry can be extended to alkyl-substituted alkynes. Trimethylsilyl-substituted alkynes also undergo this annulation process to afford monosubstituted heterocyclic products absent the silyl group.

  DOI：

  10.1021/jo0105540
• 作为产物：
  描述：

  3-(二甲氨基)苯甲基醇 在 草酰氯 、 碘 、 碳酸氢钠 、 二甲基亚砜 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 1.17h， 生成 2-iodo-5-(N,N-dimethylamino)benzaldehyde
  参考文献：
  名称：

  改良的Hoveyda-Grubbs复分解催化剂中含有螯合的碘代亚苄基配体的有趣的取代基作用†

  摘要：

  制备并表征了一系列改性的结合了碘代亚苄基配体的Hoveyda-Grubbs催化剂。发现在碘化物对位的吸电子环取代基会降低催化活性，这表明Ru⋯I–Ar键的解离不是决定速率的步骤。

  DOI：

  10.1039/c2dt32422a

文献信息

• Synthesis of 4-(1-Alkenyl)isoquinolines by Palladium(II)-Catalyzed Cyclization/Olefination
  作者：Qinhua Huang、Richard C. Larock

  DOI：10.1021/jo0261303

  日期：2003.2.1

  A variety of 4-(l-alkenyl)-3-arylisoquinolines have been prepared in moderate to excellent yields by the Pd(II)-catalyzed cyclization of 2-(1-alkynyl)arylaldimines in the presence of various alkenes. The introduction of an o-methoxy group on the arylaldimine promotes the Pd-catalyzed cyclization and stabilizes the resulting Pd(II) intermediate, improving the yields of the isoquinoline products. Ketone-containing isoquinolines 36 and 49-51 have also been prepared by this process when unsaturated alcohols are employed as the alkenes.