3-amino-4-cyan-1-p-tolyl-pyrrol-2-carbonsaeureethylester | 145162-31-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: 3-amino-4-cyan-1-p-tolyl-pyrrol-2-carbonsaeureethylester
• 英文别名: Ethyl 3-amino-4-cyano-1-(4-methylphenyl)pyrrole-2-carboxylate
• CAS: 145162-31-8
• 化学式: C₁₅H₁₅N₃O₂
• 分子量: 269.303
• InChiKey: CVWIWEWFRAJDAE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  81
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  p-toluidinomethylene-malononitrile 、 溴乙酸乙酯 在 sodium ethanolate 、 potassium carbonate 作用下， 生成 3-amino-4-cyan-1-p-tolyl-pyrrol-2-carbonsaeureethylester
  参考文献：
  名称：

  Zur Synthese von 3-Amino-pyrrolen durch Thorpe-Ziegler-Cyclisierung

  摘要：

  N-Aryl and alkylaminomethylene cyanacetic acid derivatives 1 react with alpha-halogencarbonyl compounds 2 in the presence of potassium carbonate/sodium ethoxide to yield the substituted 3-amino-pyrroles 6. Using the same principle of cyclization pyrrole derivatives 6 can also be obtained by reaction of beta-chloro- and beta-alkoxymethylenemalononitriles 4 with beta-aminocarbonyl compounds 5. From the malononitrile derivatives 1 containing the methylthio group in the beta-position, and alpha-halogen ketones 7, the 2-dicyanomethylene oxazolines 8 arise which undergo alkoholysis by treatment with sodium alkoxide to form the 3-amino-5-alkoxy-pyrrole derivatives 9.

  DOI：

  10.1002/prac.19923340608

文献信息

• Zur Synthese von 3-Amino-pyrrolen durch Thorpe-Ziegler-Cyclisierung
  作者：K. Gewald、H. Sch�fer、P. Bellmann、U. Hain

  DOI：10.1002/prac.19923340608

  日期：——

  N-Aryl and alkylaminomethylene cyanacetic acid derivatives 1 react with alpha-halogencarbonyl compounds 2 in the presence of potassium carbonate/sodium ethoxide to yield the substituted 3-amino-pyrroles 6. Using the same principle of cyclization pyrrole derivatives 6 can also be obtained by reaction of beta-chloro- and beta-alkoxymethylenemalononitriles 4 with beta-aminocarbonyl compounds 5. From the malononitrile derivatives 1 containing the methylthio group in the beta-position, and alpha-halogen ketones 7, the 2-dicyanomethylene oxazolines 8 arise which undergo alkoholysis by treatment with sodium alkoxide to form the 3-amino-5-alkoxy-pyrrole derivatives 9.