2-Chloro-1-methyl-5-(4-methylphenyl)pyrrole-3,4-dicarboxaldehyde | 139347-72-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: 2-Chloro-1-methyl-5-(4-methylphenyl)pyrrole-3,4-dicarboxaldehyde
• 英文别名: 2-Chloro-1-methyl-5-(4-methylphenyl)pyrrole-3,4-dicarbaldehyde
• CAS: 139347-72-1
• 化学式: C₁₄H₁₂ClNO₂
• 分子量: 261.708
• InChiKey: XWTNLUQMFDLSLN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  39.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-Chloro-1-methyl-5-(4-methylphenyl)pyrrole-3,4-dicarboxaldehyde 在 sodium azide 作用下， 以 二甲基亚砜 为溶剂， 反应 1.83h， 以90%的产率得到3-Cyano-2-hydroxy-1-methyl-5-(4-methylphenyl)pyrrole-4-carboxaldehyde
  参考文献：
  名称：

  Azide ring-opening-ring-closure reactions and tele-substitutions in vicinal azidopyrazole-, pyrrole- and indolecarboxaldehydes

  摘要：

  5-Chloro-1-methylpyrazole-4-carboxaldehydes 1 react with excess sodium azide in dimethyl sulfoxide to produce a mixture of 1-azidomethyl-4-cyanopyrazoles 2 and 4-cyano-5-hydroxy-1-methylpyrazoles 3. Application of this reaction to the corresponding 5-chloro-1-phenylpyrazole-4-carboxaldehydes 5 gave 4-cyano-5-hydroxy-1-phenyl-pyrazoles 7 as the sole products in high yields. Likewise, 2-aryl-5-chloro-1-methylpyrrole-3,4-dicarboxaldehydes 9 rearranged to 2-aryl-4-cyano-5-hydroxy-1-methylpyrrole-3-carboxaldehydes 10 in high yields. In the indole series, treatment of 1-aryl-2-chloroindole-3-carboxaldehydes 11 with NaN3 yielded a mixture of 1-aryl-3-cyano-2(3H)-indolones 13 and 1-aryl-5-azido-3-cyanoindoles 12, both products resulting from a ring-opening-ring-closure reaction with concomitant nucleophilic tele-substitution at the 5-position of the indole ring.

  DOI：

  10.1021/jo00033a039
• 作为产物：
  描述：

  5-Hydroxy-1-methyl-5-(4-methylphenyl)pyrrolidin-2-one 、 N,N-二甲基甲酰胺 在 三氯氧磷 作用下， 反应 0.33h， 以67%的产率得到2-Chloro-1-methyl-5-(4-methylphenyl)pyrrole-3,4-dicarboxaldehyde
  参考文献：
  名称：

  Azide ring-opening-ring-closure reactions and tele-substitutions in vicinal azidopyrazole-, pyrrole- and indolecarboxaldehydes

  摘要：

  5-Chloro-1-methylpyrazole-4-carboxaldehydes 1 react with excess sodium azide in dimethyl sulfoxide to produce a mixture of 1-azidomethyl-4-cyanopyrazoles 2 and 4-cyano-5-hydroxy-1-methylpyrazoles 3. Application of this reaction to the corresponding 5-chloro-1-phenylpyrazole-4-carboxaldehydes 5 gave 4-cyano-5-hydroxy-1-phenyl-pyrazoles 7 as the sole products in high yields. Likewise, 2-aryl-5-chloro-1-methylpyrrole-3,4-dicarboxaldehydes 9 rearranged to 2-aryl-4-cyano-5-hydroxy-1-methylpyrrole-3-carboxaldehydes 10 in high yields. In the indole series, treatment of 1-aryl-2-chloroindole-3-carboxaldehydes 11 with NaN3 yielded a mixture of 1-aryl-3-cyano-2(3H)-indolones 13 and 1-aryl-5-azido-3-cyanoindoles 12, both products resulting from a ring-opening-ring-closure reaction with concomitant nucleophilic tele-substitution at the 5-position of the indole ring.

  DOI：

  10.1021/jo00033a039

文献信息

• Azide ring-opening-ring-closure reactions and tele-substitutions in vicinal azidopyrazole-, pyrrole- and indolecarboxaldehydes
  作者：Jan Becher、Per Lauge Joergensen、Krystian Pluta、Niels J. Krake、Birgitte Falt-Hansen

  DOI：10.1021/jo00033a039

  日期：1992.3

  5-Chloro-1-methylpyrazole-4-carboxaldehydes 1 react with excess sodium azide in dimethyl sulfoxide to produce a mixture of 1-azidomethyl-4-cyanopyrazoles 2 and 4-cyano-5-hydroxy-1-methylpyrazoles 3. Application of this reaction to the corresponding 5-chloro-1-phenylpyrazole-4-carboxaldehydes 5 gave 4-cyano-5-hydroxy-1-phenyl-pyrazoles 7 as the sole products in high yields. Likewise, 2-aryl-5-chloro-1-methylpyrrole-3,4-dicarboxaldehydes 9 rearranged to 2-aryl-4-cyano-5-hydroxy-1-methylpyrrole-3-carboxaldehydes 10 in high yields. In the indole series, treatment of 1-aryl-2-chloroindole-3-carboxaldehydes 11 with NaN3 yielded a mixture of 1-aryl-3-cyano-2(3H)-indolones 13 and 1-aryl-5-azido-3-cyanoindoles 12, both products resulting from a ring-opening-ring-closure reaction with concomitant nucleophilic tele-substitution at the 5-position of the indole ring.