crykonisine | 5544-58-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 异喹啉及其衍生物
• 英文名称: crykonisine
• 英文别名: 4-[(6,7-Dimethoxyisoquinolin-1-yl)methyl]phenol
• CAS: 5544-58-1
• 化学式: C₁₈H₁₇NO₃
• 分子量: 295.338
• InChiKey: GEFVYAVAFUTMCF-UHFFFAOYSA-N

物化性质

• 熔点：
  235-236 °C (decomp)(Solv: methanol (67-56-1))
• 沸点：
  482.8±40.0 °C(Predicted)
• 密度：
  1.217±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  51.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  1-(4-(benzyloxy)benzyl)-6,7-dimethoxyisoquinoline 2-oxide 在 10% palladium on activated carbon 、 氢气 作用下， 以 甲醇 为溶剂， 24.0 ℃ 、101.33 kPa 条件下， 反应 72.0h， 以87%的产率得到crykonisine
  参考文献：
  名称：

  Catalyst and base controlled site-selective sp2 and sp3 direct arylation of azine N-oxides

  摘要：

  Site-selective direct arylation of both sp(2) and sp(3) sites on azine N-oxide substrates is described. The arylation reactions are carried out in either a divergent manner or a sequential manner The sp arylation reaction is applied to the synthesis of the natural products, papaverine and crykonisine, and. rationale for low reactivity of electron-deficient aryl halides is provided. Mechanistic investigations point toward the intimate involvement of the base in the mechanism of these reactions. (C) 2008 Published by Elsevier Ltd.

  DOI：

  10.1016/j.tet.2008.12.004

文献信息

• 1,2,3-Triazole-Mediated Synthesis of 1-Methyleneisoquinolines: A Three-Step Synthesis of Papaverine and Analogues
  作者：Tomas Opsomer、Max Van Hoof、Andrea D’Angelo、Wim Dehaen

  DOI：10.1021/acs.orglett.0c01069

  日期：2020.5.1

  A metal-free three-step synthesis toward functionalized 1-methyleneisoquinolines from readily available substrates is reported. First, acetal-containing 1,2,3-triazoles were prepared via a high-yielding triazolization reaction and quantitatively converted into triazolo[5,1-a]isoquinolines. Next, the acid-promoted ring opening of these fused triazoles was studied in order to obtain coupling to a diverse

  据报道，从容易获得的底物向官能化的1-亚甲基异喹啉进行无金属的三步合成。首先，通过高产率的三唑化反应制备含缩醛的1,2,3-三唑，并将其定量转化为三唑并[5,1-a]异喹啉。接下来，对这些稠合三唑的酸促进的开环进行了研究，以便获得与多种亲核试剂的偶联，包括碳亲核试剂，如藜芦醛。借助无水条件下的非亲核强酸，合成了一系列前所未有的异喹啉和咪唑并[5,1-a]异喹啉。
• Catalyst and base controlled site-selective sp2 and sp3 direct arylation of azine N-oxides
  作者：Derek J. Schipper、Louis-Charles Campeau、Keith Fagnou

  DOI：10.1016/j.tet.2008.12.004

  日期：2009.4

  Site-selective direct arylation of both sp(2) and sp(3) sites on azine N-oxide substrates is described. The arylation reactions are carried out in either a divergent manner or a sequential manner The sp arylation reaction is applied to the synthesis of the natural products, papaverine and crykonisine, and. rationale for low reactivity of electron-deficient aryl halides is provided. Mechanistic investigations point toward the intimate involvement of the base in the mechanism of these reactions. (C) 2008 Published by Elsevier Ltd.