tert-butyl 5-hydroxy-4-oxopentanoate | 1239346-69-0

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 酮酸及其衍生物
• 英文名称: tert-butyl 5-hydroxy-4-oxopentanoate
• CAS: 1239346-69-0
• 化学式: C₉H₁₆O₄
• 分子量: 188.224
• InChiKey: IICBLYVJSNKOCZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0
• 重原子数：
  13
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  63.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  tert-butyl 5-hydroxy-4-nitropentanoate 在 potassium hydroxide 、 potassium permanganate 、 水 作用下， 以 甲醇 为溶剂， 以92%的产率得到tert-butyl 5-hydroxy-4-oxopentanoate
  参考文献：
  名称：

  KMnO₄-Mediated Oxidation as a Continuous Flow Process

  摘要：

  An efficient and easily scalable transformation of alcohols and aldehydes to carboxylic acids and nitroalkane derivatives to the corresponding carbonyls and carboxylic acids using permanganate as the oxidant within a continuous flow reactor is reported. Notably, the generation and downstream processing of MnO2 slurries was not found to cause any blocking of the reactor when ultrasound pulses were applied to the flow system.

  DOI：

  10.1021/ol101345z

文献信息

• Guiding a divergent reaction by photochemical control: bichromatic selective access to levulinates and butenolides
  作者：Revannath L. Sutar、Saumik Sen、Or Eivgi、Gal Segalovich、Igor Schapiro、Ofer Reany、N. Gabriel Lemcoff

  DOI：10.1039/c7sc05094a

  日期：——

  irradiation initiates E–Z isomerization of the carbon–carbon double bond, followed by one of two competing processes; namely, cyclization by transesterification or a 1,5-H shift and tautomerization. Quantum chemical calculations demonstrate that intermediates are strongly blue-shifted for the cyclization while red-shifted for the 1,5-H shift reaction. Hence, delaying the double bond migration by employing

  当使用菲作为调节剂时，烯丙基和丙烯酸底物可以通过顺序的双色光化学方法以高选择性被有效地转化为乙酰丙酸酯或丁烯酸酯的衍生物。因此，UV-A光诱导的交叉复分解（CM）耦合了丙烯酸和烯丙基的对应物，随后的UV-C辐照引发了E – Z碳-碳双键的异构化，然后是两个相互竞争的过程之一；即，通过酯交换或1，5-H转移和互变异构进行环化。量子化学计算表明，中间体对于环化而言发生了强烈的蓝移，而对于1,5-H转移反应则发生了红移。因此，通过采用吸收UV-C的菲来延迟双键迁移，会导致选择性的新型发散性全光化学途径，用于合成无处不在的天然产物的基本结构图案。
• KMnO₄-Mediated Oxidation as a Continuous Flow Process
  作者：Jörg Sedelmeier、Steven V. Ley、Ian R. Baxendale、Marcus Baumann

  DOI：10.1021/ol101345z

  日期：2010.8.20

  An efficient and easily scalable transformation of alcohols and aldehydes to carboxylic acids and nitroalkane derivatives to the corresponding carbonyls and carboxylic acids using permanganate as the oxidant within a continuous flow reactor is reported. Notably, the generation and downstream processing of MnO2 slurries was not found to cause any blocking of the reactor when ultrasound pulses were applied to the flow system.