malonic acid 6-nitroveratryl half ester | 457612-03-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: malonic acid 6-nitroveratryl half ester
• 英文别名: malonic acid mono(4,5-dimethoxy-2-nitrobenzyl) ester；3-[(4,5-Dimethoxy-2-nitrophenyl)methoxy]-3-oxopropanoic acid
• CAS: 457612-03-2
• 化学式: C₁₂H₁₃NO₈
• 分子量: 299.237
• InChiKey: AFPPNNQHPPOTEV-UHFFFAOYSA-N

物化性质

• 熔点：
  160-161 °C
• 沸点：
  505.7±50.0 °C(Predicted)
• 密度：
  1.403±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  21
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  128
• 氢给体数：
  1
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  malonic acid 6-nitroveratryl half ester 在 O-(N-succinimidyl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、 N,N-二异丙基乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 0.5h， 以84%的产率得到1,3-acetonedicarboxylic acid di(6-nitroveratryl)ester
  参考文献：
  名称：

  活化丙二酸半酯的自缩合：聚酮化合物生物合成中脱羧性克莱森缩合的模型

  摘要：

  丙二酸半含氧酸酯与N-羟基琥珀酰亚胺基酯形成试剂的反应导致自缩合，从而提供相应的1，3-丙酮二羧酸二酯。此新方法不需要二价金属螯合剂或配位溶剂即可成功缩合。

  DOI：

  10.1016/j.tetlet.2003.08.014
• 作为产物：
  描述：

  6-硝基藜芦醛 在 sodium tetrahydroborate 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 1.0h， 生成 malonic acid 6-nitroveratryl half ester
  参考文献：
  名称：

  Wavelength-Controlled Orthogonal Photolysis of Protecting Groups

  摘要：

  The selective control of a chemical process by the use of an electromagnetic wave has been a challenging goal for several decades. In this article, we describe for the first time the use of a monochromatic light beam to differentiate two different reactive centers. A direct application of this concept is found in the chemistry of protecting groups. Two different photolabile protecting groups were tuned to be responsive to a specific wavelength (e.g., 254 or 420 nm). Using derivatives of the 2-nitroveratryl fragment (such as 10, sensitive at 420 nm) and 3',5'-dimethoxybenzoin fragment (such as 4, sensitive at 254 nm), it was shown that energy transfer phenomena did not erode the selectivity. Both the inter- and the intramolecular cases were studied and showed selectivities within the synthetically useful range. Hence, we could replace the traditional chemical orthogonality by a chromatic orthogonality.

  DOI：

  10.1021/jo025837m

文献信息

• Wavelength-Controlled Orthogonal Photolysis of Protecting Groups
  作者：Aurélien Blanc、Christian G. Bochet

  DOI：10.1021/jo025837m

  日期：2002.8.1

  The selective control of a chemical process by the use of an electromagnetic wave has been a challenging goal for several decades. In this article, we describe for the first time the use of a monochromatic light beam to differentiate two different reactive centers. A direct application of this concept is found in the chemistry of protecting groups. Two different photolabile protecting groups were tuned to be responsive to a specific wavelength (e.g., 254 or 420 nm). Using derivatives of the 2-nitroveratryl fragment (such as 10, sensitive at 420 nm) and 3',5'-dimethoxybenzoin fragment (such as 4, sensitive at 254 nm), it was shown that energy transfer phenomena did not erode the selectivity. Both the inter- and the intramolecular cases were studied and showed selectivities within the synthetically useful range. Hence, we could replace the traditional chemical orthogonality by a chromatic orthogonality.
• Self-condensation of activated malonic acid half esters: a model for the decarboxylative Claisen condensation in polyketide biosynthesis
  作者：Youngha Ryu、A.Ian Scott

  DOI：10.1016/j.tetlet.2003.08.014

  日期：2003.9

  The reaction of a malonic acid half oxyester with a N-hydroxysuccinimidyl ester-forming reagent resulted in self-condensation to provide the corresponding 1,3-acetonedicarboxylic acid diester. This new method does not require a divalent metal chelator or a coordinating solvent for successful condensation.

  丙二酸半含氧酸酯与N-羟基琥珀酰亚胺基酯形成试剂的反应导致自缩合，从而提供相应的1，3-丙酮二羧酸二酯。此新方法不需要二价金属螯合剂或配位溶剂即可成功缩合。