(E)-3-(4-methoxybenzo[d][1,3]dioxol-5-yl)-2-nitroprop-2-en-1-ol | 1019636-29-3

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂醇
• 英文名称: (E)-3-(4-methoxybenzo[d][1,3]dioxol-5-yl)-2-nitroprop-2-en-1-ol
• 英文别名: (E)-3-(4-methoxybenzo[d][1,3]dioxol-6-yl)-2-nitroprop-2-en-1-ol；(E)-3-(7-methoxy-1,3-benzodioxol-5-yl)-2-nitroprop-2-en-1-ol
• CAS: 1019636-29-3
• 化学式: C₁₁H₁₁NO₆
• 分子量: 253.211
• InChiKey: DPUBWQOCTWSMJR-KRXBUXKQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  93.7
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (E)-3-(4-methoxybenzo[d][1,3]dioxol-5-yl)-2-nitroprop-2-en-1-ol 在 2-碘酰基苯甲酸 作用下， 以 乙酸乙酯 为溶剂， 反应 16.0h， 生成 (Z)-3-(4-methoxybenzo[d][1,3]dioxol-5-yl)-2-nitroacrylaldehyde 、 (E)-3-(4-methoxybenzo[d][1,3]dioxol-5-yl)-2-nitroacrylaldehyde
  参考文献：
  名称：

  [EN] PROCESSES FOR THE PREPARATION OF PANCRATISTATIN AND PANCRATISTATIN ANALOGUES
  [FR] PROCÉDÉS DE PRÉPARATION DE PANCRATISTATINE ET D'ANALOGUES DE PANCRATISTATINE

  摘要：

  制备pancratistatin和pancratistatin类似物的过程。关键步骤是在胺的存在下，将1,3-二氧杂环戊酮和硝基烯烃进行反应。当使用手性胺时，该过程可能以对映选择性方式进行。然后，还可以通过还原过程得到新的和先进的中间体，这些中间体对于制备pancratistatin或选定的pancratistatin类似物非常有用。报告的过程还提供了一种高效合成硝基烯醛的方法，这是合成的起始材料。还提供了pancratistatin的类似物。

  公开号：

  WO2009026961A1
• 作为产物：
  描述：

  2-硝基乙醇 、 肉豆蔻醛 在 ammonium acetate 、 溶剂黄146 作用下， 以18%的产率得到(E)-3-(4-methoxybenzo[d][1,3]dioxol-5-yl)-2-nitroprop-2-en-1-ol
  参考文献：
  名称：

  Synthesis, Structure, and E−Z Isomerization of β-(Hetero)aryl-α-nitro-α,β-enals

  摘要：

  The first general methodology for the gram-scale preparation of previously overlooked beta-(hetero)aryl-alpha-nitro-alpha,beta-enals (3) is reported. Condensation of (hetero) aromatic aldehydes with 2-nitroethanol gave the E-isomers of uncommon beta-(hetero)aryl-alpha-hydroxymethyl-alpha,beta-unsatured-nitroalkenes (2), as determined by NOE and X-ray studies. alpha-Nitro-alpha,beta-enals 3 were subsequently obtained by hypervalent iodine oxidation of 2 as E-Z-mixtures in solid form. They showed varied stability and solvent-dependent thermal-promoted and photopromoted E-Z interconversion. Starting with furfural, experimental conditions were developed to prepare the corresponding nitroenal 3a enriched in either the E or the Z isomer: E-3a/Z-3a approximate to 90/10 and 20/80, respectively. In contrast with other structurally related compounds, nitroenals 3 have their (hetero)aryl-vinyl unit and their formyl and nitro groups all in a planar arrangement, both in solid form and in solution; accordingly, they are colored compounds with predicted high dipole moments. As deduced from solution-NMR and X-ray data, the C=C and the C=O double bonds in 3 are exclusively s-cis-oriented; this disposition corresponds in fact to the DFT-computed most stable conformer.

  DOI：

  10.1021/jo702731b

文献信息

• [EN] PROCESSES FOR THE PREPARATION OF PANCRATISTATIN AND PANCRATISTATIN ANALOGUES<br/>[FR] PROCÉDÉS DE PRÉPARATION DE PANCRATISTATINE ET D'ANALOGUES DE PANCRATISTATINE
  申请人：UNIV SANTIAGO COMPOSTELA

  公开号：WO2009026961A1

  公开（公告）日：2009-03-05

  Processes for the preparation of pancratistatin and pancratistatin analogues. The key step is the reaction of a 1,3-dioxan-5-one and a nitroolefine in the presence of an amine. The process may take place in an enantioselective way when a chiral amine is used. Reduction processes then give new and advanced intermediates that are useful for the preparation of pancratistatin or selected pancratistatin analogues. The reported process also provides a method for the efficient synthesis of nitroenals, starting materials of the synthesis. Analogues of pancratistatin are also provided.

  制备pancratistatin和pancratistatin类似物的过程。关键步骤是在胺的存在下，将1,3-二氧杂环戊酮和硝基烯烃进行反应。当使用手性胺时，该过程可能以对映选择性方式进行。然后，还可以通过还原过程得到新的和先进的中间体，这些中间体对于制备pancratistatin或选定的pancratistatin类似物非常有用。报告的过程还提供了一种高效合成硝基烯醛的方法，这是合成的起始材料。还提供了pancratistatin的类似物。
• Synthesis, Structure, and <i>E</i>−<i>Z</i> Isomerization of β-(Hetero)aryl-α-nitro-α,β-enals
  作者：Patricia Martínez-Bescos、Fernando Cagide-Fagín、Luis F. Roa、Juan Carlos Ortiz-Lara、Krzysztof Kierus、Lidia Ozores-Viturro、Marta Fernández-González、Ricardo Alonso

  DOI：10.1021/jo702731b

  日期：2008.5.1

  The first general methodology for the gram-scale preparation of previously overlooked beta-(hetero)aryl-alpha-nitro-alpha,beta-enals (3) is reported. Condensation of (hetero) aromatic aldehydes with 2-nitroethanol gave the E-isomers of uncommon beta-(hetero)aryl-alpha-hydroxymethyl-alpha,beta-unsatured-nitroalkenes (2), as determined by NOE and X-ray studies. alpha-Nitro-alpha,beta-enals 3 were subsequently obtained by hypervalent iodine oxidation of 2 as E-Z-mixtures in solid form. They showed varied stability and solvent-dependent thermal-promoted and photopromoted E-Z interconversion. Starting with furfural, experimental conditions were developed to prepare the corresponding nitroenal 3a enriched in either the E or the Z isomer: E-3a/Z-3a approximate to 90/10 and 20/80, respectively. In contrast with other structurally related compounds, nitroenals 3 have their (hetero)aryl-vinyl unit and their formyl and nitro groups all in a planar arrangement, both in solid form and in solution; accordingly, they are colored compounds with predicted high dipole moments. As deduced from solution-NMR and X-ray data, the C=C and the C=O double bonds in 3 are exclusively s-cis-oriented; this disposition corresponds in fact to the DFT-computed most stable conformer.