3-[2-(2-Phenylethynyl)phenyl]prop-2-ynyl methanesulfonate | 864950-69-6

• 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: 3-[2-(2-Phenylethynyl)phenyl]prop-2-ynyl methanesulfonate
• CAS: 864950-69-6
• 化学式: C₁₈H₁₄O₃S
• 分子量: 310.373
• InChiKey: LEPDZSWCWHSGCC-UHFFFAOYSA-N

物化性质

• 沸点：
  523.3±35.0 °C(Predicted)
• 密度：
  1.29±0.1 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：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  51.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-[2-(2-Phenylethynyl)phenyl]prop-2-ynyl methanesulfonate 在 三乙胺 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 反应 36.0h， 生成 2-amino-12-phenyl-7H-indeno[1,2-b]quinolizin-5-ium methanesulfonate
  参考文献：
  名称：

  Synthesis of Indeno-Fused Derivatives of Quinolizinium Salts, Imidazo[1,2-a]pyridine, Pyrido[1,2-a]indole, and 4H-Quinolizin-4-one via Benzannulated Enyne−Allenes

  摘要：

  [GRAPHICS]The benzannulated enediynyl propargylic alcohol 8 was prepared from 1-bromo-2-iodobenzene by two consecutive Sonogashira cross-coupling reactions. The subsequent transformation to mesylate 9 followed by treatment with 4-substituted pyridines 10 then furnished the benzannulated enediynes 11. On exposure of 11 to triethylamine, the indeno-fused quinolizinium salts 15 were produced in quantitative yield. Presumably the reaction proceeded through a 1,3-prototropic rearrangement to form the benzannulated enyne-allenes 12, which then underwent either a concerted Diels-Alder reaction or a two-step process involving a Schmittel cyclization reaction to form biradical 13 followed by an intramolecular radical-radical coupling to afford 14. A subsequent prototropic rearrangement then produced 15. Similarly, 21a and 21b were produced from 19a and 19b, respectively. The use of the Sonogashira reaction for cross-coupling between 1-iodo-2-(phenylethynyl)benzene (7) and 1-(2-propynyl)-1H-imidazole (25) followed by treatment of the resulting adduct with potassium tertbutoxide gave the indeno-fused imidazo[1,2-a]pyridine 24 in 98% yield. Similarly, the indeno-fused pyrido[1,2-a]indole 32 and 4H-quinolizin-4-one 35 were obtained by starting from 7 for cross-coupling with 1-(2-propynyl)-1H-indole (30) and 1-(2-propynyl)-2(1H)-pyridinone (33), respectively, followed by treatment with potassium tent-butoxide.

  DOI：

  10.1021/jo0505730
• 作为产物：
  描述：

  1-溴-2-苯基乙炔-苯 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 正丁基锂 、 三乙胺 作用下， 以 乙醚 、 正己烷 、 二氯甲烷 为溶剂， 反应 13.0h， 生成 3-[2-(2-Phenylethynyl)phenyl]prop-2-ynyl methanesulfonate
  参考文献：
  名称：

  Synthesis of Indeno-Fused Derivatives of Quinolizinium Salts, Imidazo[1,2-a]pyridine, Pyrido[1,2-a]indole, and 4H-Quinolizin-4-one via Benzannulated Enyne−Allenes

  摘要：

  [GRAPHICS]The benzannulated enediynyl propargylic alcohol 8 was prepared from 1-bromo-2-iodobenzene by two consecutive Sonogashira cross-coupling reactions. The subsequent transformation to mesylate 9 followed by treatment with 4-substituted pyridines 10 then furnished the benzannulated enediynes 11. On exposure of 11 to triethylamine, the indeno-fused quinolizinium salts 15 were produced in quantitative yield. Presumably the reaction proceeded through a 1,3-prototropic rearrangement to form the benzannulated enyne-allenes 12, which then underwent either a concerted Diels-Alder reaction or a two-step process involving a Schmittel cyclization reaction to form biradical 13 followed by an intramolecular radical-radical coupling to afford 14. A subsequent prototropic rearrangement then produced 15. Similarly, 21a and 21b were produced from 19a and 19b, respectively. The use of the Sonogashira reaction for cross-coupling between 1-iodo-2-(phenylethynyl)benzene (7) and 1-(2-propynyl)-1H-imidazole (25) followed by treatment of the resulting adduct with potassium tertbutoxide gave the indeno-fused imidazo[1,2-a]pyridine 24 in 98% yield. Similarly, the indeno-fused pyrido[1,2-a]indole 32 and 4H-quinolizin-4-one 35 were obtained by starting from 7 for cross-coupling with 1-(2-propynyl)-1H-indole (30) and 1-(2-propynyl)-2(1H)-pyridinone (33), respectively, followed by treatment with potassium tent-butoxide.

  DOI：

  10.1021/jo0505730

文献信息

• Synthesis of Indeno-Fused Derivatives of Quinolizinium Salts, Imidazo[1,2-<i>a</i>]pyridine, Pyrido[1,2-<i>a</i>]indole, and 4<i>H</i>-Quinolizin-4-one via Benzannulated Enyne−Allenes
  作者：Weixiang Dai、Jeffrey L. Petersen、Kung K. Wang

  DOI：10.1021/jo0505730

  日期：2005.8.1

  [GRAPHICS]The benzannulated enediynyl propargylic alcohol 8 was prepared from 1-bromo-2-iodobenzene by two consecutive Sonogashira cross-coupling reactions. The subsequent transformation to mesylate 9 followed by treatment with 4-substituted pyridines 10 then furnished the benzannulated enediynes 11. On exposure of 11 to triethylamine, the indeno-fused quinolizinium salts 15 were produced in quantitative yield. Presumably the reaction proceeded through a 1,3-prototropic rearrangement to form the benzannulated enyne-allenes 12, which then underwent either a concerted Diels-Alder reaction or a two-step process involving a Schmittel cyclization reaction to form biradical 13 followed by an intramolecular radical-radical coupling to afford 14. A subsequent prototropic rearrangement then produced 15. Similarly, 21a and 21b were produced from 19a and 19b, respectively. The use of the Sonogashira reaction for cross-coupling between 1-iodo-2-(phenylethynyl)benzene (7) and 1-(2-propynyl)-1H-imidazole (25) followed by treatment of the resulting adduct with potassium tertbutoxide gave the indeno-fused imidazo[1,2-a]pyridine 24 in 98% yield. Similarly, the indeno-fused pyrido[1,2-a]indole 32 and 4H-quinolizin-4-one 35 were obtained by starting from 7 for cross-coupling with 1-(2-propynyl)-1H-indole (30) and 1-(2-propynyl)-2(1H)-pyridinone (33), respectively, followed by treatment with potassium tent-butoxide.