2-[2-(4-Hexylphenyl)ethynyl]benzaldehyde

• 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-[2-(4-Hexylphenyl)ethynyl]benzaldehyde
• 英文别名: 2-[2-(4-hexylphenyl)ethynyl]benzaldehyde
• 化学式: C₂₁H₂₂O
• 分子量: 290.405
• InChiKey: GNAFVASFSMGCSG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.4
• 重原子数：
  22
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  5,6-二氨基-1,3-二甲基脲嘧啶 、 2-[2-(4-Hexylphenyl)ethynyl]benzaldehyde 在 copper(l) iodide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成
  参考文献：
  名称：

  Copper Accelerated One-Pot Sequential Tandem Synthesis of Tetrahydropurinoisoquinoline Derivatives

  摘要：

  Copper catalyzed efficient and operationally simple tandem synthesis of purino[8,9-a]isoquinolinedione from 5,6-diamino-1,3-dimethyluracil and in situ generated alkenyl aldehyde has been described. In this cascade reaction C-C and C-N bonds are formed through Sonogashira coupling, 5-endo cyclization, and 6-endo cyclization in a same reaction vessel.

  DOI：

  10.3987/com-17-13694
• 作为产物：
  描述：

  4-己基苯乙炔 、 邻溴苯甲醛 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 三乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 2-[2-(4-Hexylphenyl)ethynyl]benzaldehyde
  参考文献：
  名称：

  Copper Accelerated One-Pot Sequential Tandem Synthesis of Tetrahydropurinoisoquinoline Derivatives

  摘要：

  Copper catalyzed efficient and operationally simple tandem synthesis of purino[8,9-a]isoquinolinedione from 5,6-diamino-1,3-dimethyluracil and in situ generated alkenyl aldehyde has been described. In this cascade reaction C-C and C-N bonds are formed through Sonogashira coupling, 5-endo cyclization, and 6-endo cyclization in a same reaction vessel.

  DOI：

  10.3987/com-17-13694

文献信息

• PdCl2-Catalyzed Domino Reactions of 2-Alkynylbenzaldehydes with Indoles: Synthesis of Fluorescent 5H-Benzo[b]carbazol-6-yl Ketones
  作者：Ri-Yuan Tang、Jin-Heng Li

  DOI：10.1002/chem.201000133

  日期：2010.4.26

  selective Pd‐catalyzed domino reaction of 2‐alkynylbenzaldehydes with indoles has been developed for the synthesis of 5H‐benzo[b]carbazol‐6‐yl ketones. The isobenzopyrylium complex is trapped by indole at room temperature to give 3‐(1H‐isochromen‐1‐yl)‐1H‐indoles, which can be transformed into 5H‐benzo[b]carbazol‐6‐yl ketones by raising the temperature (see scheme). These ketones exhibit intense fluorescence

  合成方法：已开发出一种新的，选择性的Pd催化的2-炔基苯甲醛与吲哚的多米诺反应，用于合成5 H-苯并[ b ]咔唑-6-基酮。室温下，吲哚会俘获异苯并吡啶鎓配合物，从而生成3‐（1 H‐异色素n ‐1‐基）‐1 H‐吲哚，可通过提纯将其转变为5 H‐苯并[ b ]咔唑-6‐基酮温度（请参阅方案）。这些酮表现出强烈的荧光并与金属离子相互作用以增强荧光强度。
• One-pot to fused pyrazoles by a double cyclization of o-alkynylaldehydes with ketones and hydrazine under metal-free condition
  作者：Jinxia Qiao、Bin Liu、Zongquan Liao、Ying Li、Lei Ma、Chune Dong、Hai-Bing Zhou

  DOI：10.1016/j.tet.2014.04.032

  日期：2014.6

  An efficient one-pot synthesis of fused pyrazoles has been developed. The procedure involved three components reaction of o-alkynylaldehydes 1a-s with ketones 2a-m and hydrazine under mild, metal-free reaction conditions. The desired products were obtained in one-step up to 85% yield. The molecular structure was confirmed by the X-ray crystallographic analysis. (C) 2014 Elsevier Ltd. All rights reserved.