[2-(phenylethynyl)pyridin-3-yl]methanol | 947395-88-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: [2-(phenylethynyl)pyridin-3-yl]methanol
• CAS: 947395-88-2
• 化学式: C₁₄H₁₁NO
• 分子量: 209.247
• InChiKey: WFCTUMPKLZXJDJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.97
• 重原子数：
  16.0
• 可旋转键数：
  1.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  33.12
• 氢给体数：
  1.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  [2-(phenylethynyl)pyridin-3-yl]methanol 在 碘 、 碳酸氢钠 作用下， 以 乙腈 为溶剂， 反应 15.0h， 以98%的产率得到8-iodo-7-phenyl-5H-pyrano[4,3-b]pyridine
  参考文献：
  名称：

  A Simple and Mild Synthesis of 1H-Isochromenes and (Z)-1-Alkylidene-1,3-dihydroisobenzofurans by the Iodocyclization of 2-(1-Alkynyl)benzylic Alcohols

  摘要：

  A variety of iodo-substituted isochromenes, dihydroisobenzofurans, and pyranopyridines are readily prepared in good to excellent yields under mild conditions by the iodocyclization of readily available 2-(1-alkynyl)benzylic alcohols or 2-(1-alkynyl)-3-(hydroxymethyl)pyridines. Reactions are carried out in MeCN at 25 degrees C with 3 equiv of I-2 as the iodine source and NaHCO3 (3 equiv) as the base. The regiochemical outcome of the reaction strongly depends on the substitution pattern of the starting material. In particular, the 5-exo-dig cyclization mode, leading to dihydroisobenzofurans, is observed in the case of substrates bearing a tertiary alcoholic group, owing to the gem-dialkyl effect, while the 6-endo-dig cyclization mode, leading to isochromene or pyranopyridines, is the usually preferred pathway in the case of substrates bearing a primary or secondary alcoholic group.

  DOI：

  10.1021/jo902333y
• 作为产物：
  描述：

  2-溴-3-吡啶甲醛 在 sodium tetrahydroborate 作用下， 生成 [2-(phenylethynyl)pyridin-3-yl]methanol
  参考文献：
  名称：

  通过碘介导的2-炔基苄基叠氮化物的亲电环化反应合成1,3,4-三取代异喹啉。

  摘要：

  DOI：

  10.1002/anie.200701392

文献信息

• Transition Metal-Free Cascade Reactions of Alkynols to Afford Isoquinolin-1(2<i>H</i>)-one and Dihydroisobenzofuran Derivatives
  作者：Deng Yuan Li、Ke Ji Shi、Xiao Feng Mao、Guo Rong Chen、Pei Nian Liu

  DOI：10.1021/jo5006312

  日期：2014.5.16

  Transition metal-free cascade reactions of alkynols with imines have been achieved using potassium tert-butoxide as catalyst. Switching the reaction solvent gives two kinds of products in good yield: isoquinolin-1(2H)-one derivatives and dihydroisobenzofuran derivatives. This approach was used to generate the natural product 8-oxypseudopalmatine in a two-step procedure from commercially available starting materials. Additionally, multicomponent reactions of alkynols, aldehydes, and amines were also successfully achieved to afford isoquinolin-1(2H)-one derivatives.