2,7-dimethoxyquinoline-3-carboxylic acid | 929343-40-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• 英文名称: 2,7-dimethoxyquinoline-3-carboxylic acid
• CAS: 929343-40-8
• 化学式: C₁₂H₁₁NO₄
• 分子量: 233.224
• InChiKey: FFVBUWXQAXSSPD-UHFFFAOYSA-N

物化性质

• 沸点：
  384.6±37.0 °C(Predicted)
• 密度：
  1.315±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  68.6
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  2,7-dimethoxyquinoline-3-carboxylic acid 在 草酰氯 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 生成
  参考文献：
  名称：

  Synthesis and Herbicidal Activity of Triketone–Quinoline Hybrids as Novel 4-Hydroxyphenylpyruvate Dioxygenase Inhibitors

  摘要：

  4-Hydroxyphenylpyruvate dioxygenase (EC 1.13.11.27, HPPD) is one of the most important targets for herbicide discovery. In the search for new HPPD inhibitors with novel scaffolds, triketone-quinoline hybrids were designed and subsequently optimized on the basis of the structure -activity relationship (SAR) studies. Most of the synthesized compounds displayed potent inhibition of Arabidopsis thaliana HPPD (AtHPPD), and some of them exhibited broad-spectrum and promising herbicidal activity at the rate of 150 g ai/ha by postemergence application. Most promisingly, compound III-1, 3-hydroxy-2-(2-methoxy-7-(methylthio)quinoline-3-carbonyl)cyclohex-2-enone (K-i = 0.009 mu M, AtHPPD), had broader spectrum of weed control than mesotrione. Furthermore, compound III-1 was much safer to maize at the rate of 150 g ai/ha than mesotrione, demonstrating its great potential as herbicide for weed control in maize fields. Therefore, triketone-quinoline hybrids may serve as new lead structures for novel herbicide discovery.

  DOI：

  10.1021/acs.jafc.5b01530
• 作为产物：
  描述：

  2-氯-7-甲氧基喹啉-3-甲醛 在 碘 、 sodium 、 potassium carbonate 作用下， 生成 2,7-dimethoxyquinoline-3-carboxylic acid
  参考文献：
  名称：

  Synthesis and Herbicidal Activity of Triketone–Quinoline Hybrids as Novel 4-Hydroxyphenylpyruvate Dioxygenase Inhibitors

  摘要：

  4-Hydroxyphenylpyruvate dioxygenase (EC 1.13.11.27, HPPD) is one of the most important targets for herbicide discovery. In the search for new HPPD inhibitors with novel scaffolds, triketone-quinoline hybrids were designed and subsequently optimized on the basis of the structure -activity relationship (SAR) studies. Most of the synthesized compounds displayed potent inhibition of Arabidopsis thaliana HPPD (AtHPPD), and some of them exhibited broad-spectrum and promising herbicidal activity at the rate of 150 g ai/ha by postemergence application. Most promisingly, compound III-1, 3-hydroxy-2-(2-methoxy-7-(methylthio)quinoline-3-carbonyl)cyclohex-2-enone (K-i = 0.009 mu M, AtHPPD), had broader spectrum of weed control than mesotrione. Furthermore, compound III-1 was much safer to maize at the rate of 150 g ai/ha than mesotrione, demonstrating its great potential as herbicide for weed control in maize fields. Therefore, triketone-quinoline hybrids may serve as new lead structures for novel herbicide discovery.

  DOI：

  10.1021/acs.jafc.5b01530

文献信息

• Cannizzaro reaction of 2-chloro-3-formylquinolines and its synthetic utility for 2-acetylfuro[2,3-b]quinolines: The alkaloid analogues
  作者：DEVADOSS KARTHIK KUMAR、RAJAKANDHAN SHANKAR、SUBRAMANIAM PARAMESWARAN RAJENDRAN

  DOI：10.1007/s12039-012-0297-2

  日期：2012.9

  Cannizzaro reaction of 2-chloro-3-formylquinolines was investigated under two different conditions. Under both conditions, redox and methoxylation proceeded simultaneously and gave 2-methoxy-3-formylquinolines, 2-methoxyquinolin-3-yl-methanols and 2-methoxyquinoline-3-carboxylic acids. The synthesized 2-methoxy-3-formylquinolines were then condensed with acetone in the presence of sulphuric acid to give 4-(2-methoxy-quinolin-3-yl)-but-3-en-2-ones which in turn were bromocyclized and dehydrobrominated to get 2-acetylfuro[2,3-b]quinolines.

  在两种不同条件下研究了 2-氯-3-甲酰基喹啉的 Cannizzaro 反应。在这两种条件下，氧化还原和甲氧基化反应同时进行，生成了 2-甲氧基-3-甲酰基喹啉、2-甲氧基喹啉-3-基甲醇和 2-甲氧基喹啉-3-羧酸。合成的 2-甲氧基-3-甲酰基喹啉随后在硫酸存在下与丙酮缩合，得到 4-（2-甲氧基-喹啉-3-基）-丁-3-烯-2-酮，再将其溴化和脱氢溴化，得到 2-乙酰基呋喃并[2,3-b]喹啉。