Cyclopentancarbonsaeure-p-nitrophenylester | 42721-91-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚酯
• 英文名称: Cyclopentancarbonsaeure-p-nitrophenylester
• 英文别名: 4-nitrophenyl cyclopentanecarboxylate；Cyclopentanecarboxylic acid, 4-nitrophenyl ester；(4-nitrophenyl) cyclopentanecarboxylate
• CAS: 42721-91-5
• 化学式: C₁₂H₁₃NO₄
• 分子量: 235.24
• InChiKey: PDWMECLUAQUZCV-UHFFFAOYSA-N

物化性质

• 沸点：
  370.4±25.0 °C(Predicted)
• 密度：
  1.280±0.06 g/cm3(Predicted)
• 保留指数：
  1904

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  72.1
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  Cyclopentancarbonsaeure-p-nitrophenylester 在 4-二甲氨基吡啶 、 Bacillus subtilis 168 PnbA esterase 、 Bacillus subtilis 168 SrfAD esterase 、 N,N'-二环己基碳二亚胺 作用下， 以 二甲基亚砜 为溶剂， 反应 32.2h， 生成 4-硝基苯基乙酸酯
  参考文献：
  名称：

  Fingerprint lipolytic enzymes with chromogenic p-nitrophenyl esters of structurally diverse carboxylic acids

  摘要：

  A series of structurally diverse chromogenic esters, including a new compound (4-nitrophenyl 2-methylpentanoate), has been synthesized, constituting an array of 17 substrates which could be applied to rapidly fingerprint the activity of lipases or esterases to reveal their substrates specificity and functional characteristics. Combined with genetic technology such as "data mining" and directed evolution, such fingerprints might be a promising platform for discovery of potentially useful enzymes in industrial application. The fingerprint of commercially available Lipase-B from Candida antarctica as a model enzyme was first measured to confirm the reliability of this method. Then three new enzymes mined from genomic libraries were successfully fingerprinted, revealing the functional characteristics of those enzymes. Among them, the enzyme SrfAD was founded with specific substrate preference towards cycloalkyl carboxylic esters and aromatic esters, making it more promising in synthetic utilities than other tested enzymes. (C) 2011 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcatb.2011.07.010
• 作为产物：
  描述：

  4-硝基苯基硬脂酸酯 在 4-二甲氨基吡啶 、 Candida antarctica lipase B 、 Bacillus subtilis 168 SrfAD esterase 、 N,N'-二环己基碳二亚胺 作用下， 以 二甲基亚砜 为溶剂， 反应 64.4h， 生成 Cyclopentancarbonsaeure-p-nitrophenylester
  参考文献：
  名称：

  Fingerprint lipolytic enzymes with chromogenic p-nitrophenyl esters of structurally diverse carboxylic acids

  摘要：

  A series of structurally diverse chromogenic esters, including a new compound (4-nitrophenyl 2-methylpentanoate), has been synthesized, constituting an array of 17 substrates which could be applied to rapidly fingerprint the activity of lipases or esterases to reveal their substrates specificity and functional characteristics. Combined with genetic technology such as "data mining" and directed evolution, such fingerprints might be a promising platform for discovery of potentially useful enzymes in industrial application. The fingerprint of commercially available Lipase-B from Candida antarctica as a model enzyme was first measured to confirm the reliability of this method. Then three new enzymes mined from genomic libraries were successfully fingerprinted, revealing the functional characteristics of those enzymes. Among them, the enzyme SrfAD was founded with specific substrate preference towards cycloalkyl carboxylic esters and aromatic esters, making it more promising in synthetic utilities than other tested enzymes. (C) 2011 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcatb.2011.07.010

文献信息

• Visible‐Light Catalyzed [1+2+2] Cycloaddition Reactions Enabled by the Formation of Methylene Nitrones
  作者：Jing Guo、Ying Xie、Wen‐Tian Zeng、Qiao‐Lei Wu、Jiang Weng、Gui Lu

  DOI：10.1002/adsc.202000858

  日期：2020.12.8

  Nitrones are key intermediates in organic synthesis. Herein, we report the first photo‐redox synthesis of methylene nitrone intermediates from nitroarenes and arylamines. The highly reactive methylene nitrones are in situ trapped by alkenes to afford various isoxazolidines. This three‐component reaction features the use of N,N‐dimethylanilines or N‐aryl glycines as C1 building blocks, which allow for

  硝基是有机合成中的关键中间体。本文中，我们报道了由硝基芳烃和芳基胺进行的光催化还原亚甲基中间体中间体。高反应性的亚甲基硝基酮被烯烃原位捕获，得到各种异恶唑烷。此三组分反应的特征是使用N，N-二甲基苯胺或N-芳基甘氨酸作为C1结构单元，可从简单的起始原料进行一锅形式的正式[1 + 2 + 2]环加成。在温和的条件下，可以以中等至良好的收率获得各种有用的异恶唑烷。机理研究支持通过选择性的N-CH 3键裂解和亚甲基转移形成亚甲基硝酮。
• Fingerprint lipolytic enzymes with chromogenic p-nitrophenyl esters of structurally diverse carboxylic acids
  作者：Le Qian、Jia-Yan Liu、Jia-Ying Liu、Hui-Lei Yu、Chun-Xiu Li、Jian-He Xu

  DOI：10.1016/j.molcatb.2011.07.010

  日期：2011.8

  A series of structurally diverse chromogenic esters, including a new compound (4-nitrophenyl 2-methylpentanoate), has been synthesized, constituting an array of 17 substrates which could be applied to rapidly fingerprint the activity of lipases or esterases to reveal their substrates specificity and functional characteristics. Combined with genetic technology such as "data mining" and directed evolution, such fingerprints might be a promising platform for discovery of potentially useful enzymes in industrial application. The fingerprint of commercially available Lipase-B from Candida antarctica as a model enzyme was first measured to confirm the reliability of this method. Then three new enzymes mined from genomic libraries were successfully fingerprinted, revealing the functional characteristics of those enzymes. Among them, the enzyme SrfAD was founded with specific substrate preference towards cycloalkyl carboxylic esters and aromatic esters, making it more promising in synthetic utilities than other tested enzymes. (C) 2011 Elsevier B.V. All rights reserved.