5-<(3-hydroxy-1-methyl-2-phenylpyrrol-5-yl)methylene>-2,2-dimethyl-1,3-dioxane-4,6-dione

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: 5-<(3-hydroxy-1-methyl-2-phenylpyrrol-5-yl)methylene>-2,2-dimethyl-1,3-dioxane-4,6-dione
• 化学式: C₁₈H₁₇NO₅
• 分子量: 327.337
• InChiKey: BEGXWDBDFKFBJX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.62
• 重原子数：
  24.0
• 可旋转键数：
  2.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  77.76
• 氢给体数：
  1.0
• 氢受体数：
  6.0

反应信息

• 作为产物：
  描述：

  5-(甲氧基甲烯基)-2,2-二甲基-1,3-二氧己环-4,6-二酮 、 3-hydroxy-1-methyl-2-phenylpyrrole 以 乙腈 为溶剂， 以68%的产率得到5-<(3-hydroxy-1-methyl-2-phenylpyrrol-5-yl)methylene>-2,2-dimethyl-1,3-dioxane-4,6-dione
  参考文献：
  名称：

  3-Hydroxypyrroles and 1H-pyrrol-3(2H)-ones. Part 13. Reactions of methoxymethylene Meldrum's acid with 3-hydroxypyrroles, with 3-methoxypyrroles and with other active substrates, and pyrolytic heterocyclisations of the products

  摘要：

  Methoxymethylene Meldrum's acid 2 in acetonitrile solution acts as a useful C-electrophile for active substrates such as pyrrole, indole or tertiary enaminones to give substitution products (e.g. 5, 6 or 12, respectively). Primary enaminones react exclusively at the nitrogen atom under these conditions. The effect of ring substituents on the regiochemistry of electrophilic substitution of 3-hydroxypyrroles and 3-methoxypyrroles was studied using methoxymethylene Meldrum's acid as the electrophile. Flash vacuum pyrolysis of the Meldrum's acid derivatives obtained in many of these reactions gave access to a range of heterocyclic systems, including the pyridone 48, quinolinedione 43, benzazepinedione 41 and fused pyrones 50, 52 and 54.

  DOI：

  10.1039/p19930002017

文献信息

• 3-Hydroxypyrroles and 1H-pyrrol-3(2H)-ones. Part 13. Reactions of methoxymethylene Meldrum's acid with 3-hydroxypyrroles, with 3-methoxypyrroles and with other active substrates, and pyrolytic heterocyclisations of the products
  作者：Paul A. Derbyshire、Gordon A. Hunter、Hamish McNab、Lilian C. Monahan

  DOI：10.1039/p19930002017

  日期：——

  Methoxymethylene Meldrum's acid 2 in acetonitrile solution acts as a useful C-electrophile for active substrates such as pyrrole, indole or tertiary enaminones to give substitution products (e.g. 5, 6 or 12, respectively). Primary enaminones react exclusively at the nitrogen atom under these conditions. The effect of ring substituents on the regiochemistry of electrophilic substitution of 3-hydroxypyrroles and 3-methoxypyrroles was studied using methoxymethylene Meldrum's acid as the electrophile. Flash vacuum pyrolysis of the Meldrum's acid derivatives obtained in many of these reactions gave access to a range of heterocyclic systems, including the pyridone 48, quinolinedione 43, benzazepinedione 41 and fused pyrones 50, 52 and 54.