4-(4',5'-dimethoxy-2'-formylphenyl)-3-buten-2-one | 132233-80-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: 4-(4',5'-dimethoxy-2'-formylphenyl)-3-buten-2-one
• 英文别名: 4,5-dimethoxy-2-[(E)-3-oxobut-1-enyl]benzaldehyde
• CAS: 132233-80-8
• 化学式: C₁₃H₁₄O₄
• 分子量: 234.252
• InChiKey: KLFDTCZENVYIOT-SNAWJCMRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  17
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  4-(4',5'-dimethoxy-2'-formylphenyl)-3-buten-2-one 在 sodium acetate 、 溶剂黄146 作用下， 以 二氯甲烷 、 苯 为溶剂， 反应 12.0h， 生成 1-(5,6-dimethoxy-3H-2-benzofuran-1-ylidene)propan-2-one
  参考文献：
  名称：

  A general synthetic route to isobenzofurans bearing a functionalized C-1 substituent

  摘要：

  Aromatic o-formyl acetals undergo base-catalyzed Claisen-Schmidt condensation with nitro compounds, ketones, methyl acetate, and acetonitrile to produce functionalized styrenes. Hydrolysis of the acetal and cyclization of the product in methanol provide methoxy phthalans 8 which are used to generate isobenzofurans bearing a functionalized substituent at C-1. The Diels-Alder reactions of these isobenzofurans with several dienophiles have been studied. Conjugated exo-methylene phthalans 20 have been isolated, and an unusual elimination of nitrous acid from nitroalkyl phthalans 8E and 8F has been observed.

  DOI：

  10.1021/jo00005a040
• 作为产物：
  描述：

  1-溴-2-(二甲氧基甲基)-4,5-二甲氧基苯 在 sodium hydroxide 、 正丁基锂 作用下， 以 水 为溶剂， 反应 9.0h， 生成 4-(4',5'-dimethoxy-2'-formylphenyl)-3-buten-2-one
  参考文献：
  名称：

  A general synthetic route to isobenzofurans bearing a functionalized C-1 substituent

  摘要：

  Aromatic o-formyl acetals undergo base-catalyzed Claisen-Schmidt condensation with nitro compounds, ketones, methyl acetate, and acetonitrile to produce functionalized styrenes. Hydrolysis of the acetal and cyclization of the product in methanol provide methoxy phthalans 8 which are used to generate isobenzofurans bearing a functionalized substituent at C-1. The Diels-Alder reactions of these isobenzofurans with several dienophiles have been studied. Conjugated exo-methylene phthalans 20 have been isolated, and an unusual elimination of nitrous acid from nitroalkyl phthalans 8E and 8F has been observed.

  DOI：

  10.1021/jo00005a040

文献信息

• MEEGALLA, SANATH K.;RODRIGO, RUSSELL, J. ORG. CHEM., 56,(1991) N, C. 1882-1888
  作者：MEEGALLA, SANATH K.、RODRIGO, RUSSELL

  DOI：——

  日期：——
• A general synthetic route to isobenzofurans bearing a functionalized C-1 substituent
  作者：Sanath K. Meegalla、Russell Rodrigo

  DOI：10.1021/jo00005a040

  日期：1991.3

  Aromatic o-formyl acetals undergo base-catalyzed Claisen-Schmidt condensation with nitro compounds, ketones, methyl acetate, and acetonitrile to produce functionalized styrenes. Hydrolysis of the acetal and cyclization of the product in methanol provide methoxy phthalans 8 which are used to generate isobenzofurans bearing a functionalized substituent at C-1. The Diels-Alder reactions of these isobenzofurans with several dienophiles have been studied. Conjugated exo-methylene phthalans 20 have been isolated, and an unusual elimination of nitrous acid from nitroalkyl phthalans 8E and 8F has been observed.