Ethyl 4-bromo-3-ethyl-1H-pyrazole-5-carboxylate | 1354829-67-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: Ethyl 4-bromo-3-ethyl-1H-pyrazole-5-carboxylate
• 英文别名: ethyl 4-bromo-5-ethyl-1H-pyrazole-3-carboxylate
• CAS: 1354829-67-6
• 化学式: C₈H₁₁BrN₂O₂
• 分子量: 247.092
• InChiKey: FEHKNIFXXANQQB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  55
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  Ethyl 4-bromo-3-ethyl-1H-pyrazole-5-carboxylate 在 potassium carbonate 、 三乙胺 作用下， 以 丙酮 为溶剂， 反应 18.0h， 生成 4-bromo-3-ethyl-N-(3-ethyl-5-(methylcarbamoyl)-1H-pyrazol-4-yl)-1-methyl-1H-pyrazole-5-carboxamide
  参考文献：
  名称：

  Synthesis and anti-TMV activity of novel N-(3-alkyl-1H-pyrazol-4-yl)-3-alkyl-4-substituted-1H-pyrazole-5-carboxamides

  摘要：

  In order to investigate the biological activity of novel bis-pyrazole compounds, a series of N-(3-alkyl-5-(N-methylcarbamyl)-1 H-pyrazol-4-yl)-3-alkyl-4-substituted-1H-pyrazole-5-carboxamides were designed and synthesized with ethyl 3-alkyl-1H-pyrazole-5-carboxylate 1 as starting materials. N-Methyl-3-alkyl-4-amino-1H-pyrazole-5-carboxamides 6 were obtained from 1 via 5 steps. 3-Alkyl-4-substitued-1H-pyrazole-5-carboxyl chlorides 4a, 4b, 11a, 11b, 11c or 12 were also obtained from 1 via several steps. Target compounds 7a-7g were obtained after the reaction of 6 with the above 1H-pyrazole-5-carboxyl chlorides. Preliminary bioassay showed some compounds possessing good inactivation effect against TMV (tobacco mosaic virus). Compound 7a showed higher activity superior to ningnanmycin at a concentration of 5.0 x 10(-4) g/mL and equal activity it 1.0 x 10(-4) g/mL; 7b and 7c showed equal activity to virazole both at concentrations of 5.0 x 10(-4) g/mL and 1.0 x 10(-4) g/ML. (C) 2012 De Kai Yuan. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

  DOI：

  10.1016/j.cclet.2012.04.010
• 作为产物：
  描述：

  3-乙基-1H-吡唑-5-羧酸乙酯 在 N-溴代丁二酰亚胺(NBS) 作用下， 以 氯仿 为溶剂， 反应 12.0h， 生成 Ethyl 4-bromo-3-ethyl-1H-pyrazole-5-carboxylate
  参考文献：
  名称：

  Synthesis and anti-TMV activity of novel N-(3-alkyl-1H-pyrazol-4-yl)-3-alkyl-4-substituted-1H-pyrazole-5-carboxamides

  摘要：

  In order to investigate the biological activity of novel bis-pyrazole compounds, a series of N-(3-alkyl-5-(N-methylcarbamyl)-1 H-pyrazol-4-yl)-3-alkyl-4-substituted-1H-pyrazole-5-carboxamides were designed and synthesized with ethyl 3-alkyl-1H-pyrazole-5-carboxylate 1 as starting materials. N-Methyl-3-alkyl-4-amino-1H-pyrazole-5-carboxamides 6 were obtained from 1 via 5 steps. 3-Alkyl-4-substitued-1H-pyrazole-5-carboxyl chlorides 4a, 4b, 11a, 11b, 11c or 12 were also obtained from 1 via several steps. Target compounds 7a-7g were obtained after the reaction of 6 with the above 1H-pyrazole-5-carboxyl chlorides. Preliminary bioassay showed some compounds possessing good inactivation effect against TMV (tobacco mosaic virus). Compound 7a showed higher activity superior to ningnanmycin at a concentration of 5.0 x 10(-4) g/mL and equal activity it 1.0 x 10(-4) g/mL; 7b and 7c showed equal activity to virazole both at concentrations of 5.0 x 10(-4) g/mL and 1.0 x 10(-4) g/ML. (C) 2012 De Kai Yuan. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

  DOI：

  10.1016/j.cclet.2012.04.010