(E)-2-(2,5-diallyloxyphenyl)-1-(2,5-dimethylphenyl)ethene | 493036-90-1

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: (E)-2-(2,5-diallyloxyphenyl)-1-(2,5-dimethylphenyl)ethene
• 英文别名: 2-[(E)-2-[2,5-bis(prop-2-enoxy)phenyl]ethenyl]-1,4-dimethylbenzene
• CAS: 493036-90-1
• 化学式: C₂₂H₂₄O₂
• 分子量: 320.431
• InChiKey: YCTXWNVJSKJJKW-MDZDMXLPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.1
• 重原子数：
  24
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (E)-2-(2,5-diallyloxyphenyl)-1-(2,5-dimethylphenyl)ethene 在 sodium tetrahydroborate 、 四(三苯基膦)钯 、 水 、 silica gel 、 magnesium sulfate 、 silver(l) oxide 作用下， 以 四氢呋喃 、 乙醚 、 氯仿 为溶剂， 反应 150.5h， 生成 (+/-)-(8aS,9R,10R)-9-(2,5-dimethylphenyl)-8a-[(E)-2-(2,5-dimethylphenyl)ethenyl]-8aH-9,10-dihydro-1,4,5,10-tetrahydroxyphenanthrene-8-one
  参考文献：
  名称：

  1,4-Benzoquinones with Styryl Substituents

  摘要：

  2-Styryl-1,4-benzoquinone (1) and compounds 2 and 3 containing 1 as a substructure all proved to be highly reactive towards thermal or photochemical [4pi + 2pi] cyclodimerization reactions. Chemo-, regio- and stereoselective processes lead to dimers (compounds 1-10), which can undergo secondary reactions consisting of the addition of nucleophiles combined with a twofold keto-enol tautomerism (10 --> 12). An alternative process is dehydrogenation/oxidation followed by an intramolecular [4pi + 2pi] cycloaddition (10 --> 11). The same selective [4pi + 2pi] cyclodimerization can be observed in solution upon irradiation (e.g., 1a --> 10a), in contrast to irradiation in the crystalline state which yields a [2pi + 2pi] dimer (e.g., 1a --> 13). If more than one styrylbenzoquinone moiety is present in the same molecule the oligomers 2a (n = 1-3) and 3a (n = 1-4) are obtained. ((C) Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002).

  DOI：

  10.1002/1099-0690(200209)2002:18<3162::aid-ejoc3162>3.0.co;2-h
• 作为产物：
  描述：

  2,5-二甲基苄氯 在 sodium hydride 作用下， 以 乙二醇二甲醚 为溶剂， 反应 5.0h， 生成 (E)-2-(2,5-diallyloxyphenyl)-1-(2,5-dimethylphenyl)ethene
  参考文献：
  名称：

  1,4-Benzoquinones with Styryl Substituents

  摘要：

  2-Styryl-1,4-benzoquinone (1) and compounds 2 and 3 containing 1 as a substructure all proved to be highly reactive towards thermal or photochemical [4pi + 2pi] cyclodimerization reactions. Chemo-, regio- and stereoselective processes lead to dimers (compounds 1-10), which can undergo secondary reactions consisting of the addition of nucleophiles combined with a twofold keto-enol tautomerism (10 --> 12). An alternative process is dehydrogenation/oxidation followed by an intramolecular [4pi + 2pi] cycloaddition (10 --> 11). The same selective [4pi + 2pi] cyclodimerization can be observed in solution upon irradiation (e.g., 1a --> 10a), in contrast to irradiation in the crystalline state which yields a [2pi + 2pi] dimer (e.g., 1a --> 13). If more than one styrylbenzoquinone moiety is present in the same molecule the oligomers 2a (n = 1-3) and 3a (n = 1-4) are obtained. ((C) Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002).

  DOI：

  10.1002/1099-0690(200209)2002:18<3162::aid-ejoc3162>3.0.co;2-h

文献信息

• 1,4-Benzoquinones with Styryl Substituents
  作者：Isabella Brehm、Sabine Hinneschiedt、Herbert Meier

  DOI：10.1002/1099-0690(200209)2002:18<3162::aid-ejoc3162>3.0.co;2-h

  日期：2002.9

  2-Styryl-1,4-benzoquinone (1) and compounds 2 and 3 containing 1 as a substructure all proved to be highly reactive towards thermal or photochemical [4pi + 2pi] cyclodimerization reactions. Chemo-, regio- and stereoselective processes lead to dimers (compounds 1-10), which can undergo secondary reactions consisting of the addition of nucleophiles combined with a twofold keto-enol tautomerism (10 --> 12). An alternative process is dehydrogenation/oxidation followed by an intramolecular [4pi + 2pi] cycloaddition (10 --> 11). The same selective [4pi + 2pi] cyclodimerization can be observed in solution upon irradiation (e.g., 1a --> 10a), in contrast to irradiation in the crystalline state which yields a [2pi + 2pi] dimer (e.g., 1a --> 13). If more than one styrylbenzoquinone moiety is present in the same molecule the oligomers 2a (n = 1-3) and 3a (n = 1-4) are obtained. ((C) Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002).