2-hydroxy-3'-nitro-4-(carboxymethoxy)-4'-methoxy-6-(benzyloxy)chalcone | 76799-24-1

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 直链 1,3-二芳基丙烷
• 英文名称: 2-hydroxy-3'-nitro-4-(carboxymethoxy)-4'-methoxy-6-(benzyloxy)chalcone
• CAS: 76799-24-1
• 化学式: C₂₅H₂₁NO₉
• 分子量: 479.443
• InChiKey: NMOKCYADYILKFQ-VQHVLOKHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.25
• 重原子数：
  35.0
• 可旋转键数：
  11.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  145.43
• 氢给体数：
  2.0
• 氢受体数：
  8.0

反应信息

• 作为反应物：
  描述：

  2-hydroxy-3'-nitro-4-(carboxymethoxy)-4'-methoxy-6-(benzyloxy)chalcone 在 palladium on activated charcoal 氢气 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 1.0h， 以59%的产率得到2,6-dihydroxy-3'-amino-4-(carboxymethoxy)-4'-methoxydihydrochalcone
  参考文献：
  名称：

  Dihydrochalcone sweeteners. A study of the atypical temporal phenomena

  摘要：

  Neohesperidin dihydrochalcone (NHDHC), known since 1963 as an intensely sweet compound, is determined to be 340 +/- 60 (p less than 0.05) times more potent than sucrose. The unusual temporal properties of this material are hypothesized as being due to the effects of metabolism, conformation, chelation, or hydrophobicity. Forty-four analogues are synthesized to test the four hypotheses, none of which are strongly supported. A method of quantitation of temporal characteristics of tastant molecules is developed so as to allow comparison of taste appearance time (AT) and extinction time (ET) of experimental compounds. Four of the new compounds, 40 and 43-45, exhibit high sweetness potencies, ranging from 280 and 440 times sucrose, and may be useful in selected food systems. The temporal taste characteristics remain unimproved over NHDHC, however.

  DOI：

  10.1021/jm00136a011
• 作为产物：
  描述：

  Phloroacetophenone 4'-O-β-neohesperidoside 在 氢氧化钾 、 硫酸 、 potassium carbonate 作用下， 以 乙二醇二甲醚 、 乙醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 286.0h， 生成 2-hydroxy-3'-nitro-4-(carboxymethoxy)-4'-methoxy-6-(benzyloxy)chalcone
  参考文献：
  名称：

  Dihydrochalcone sweeteners. A study of the atypical temporal phenomena

  摘要：

  Neohesperidin dihydrochalcone (NHDHC), known since 1963 as an intensely sweet compound, is determined to be 340 +/- 60 (p less than 0.05) times more potent than sucrose. The unusual temporal properties of this material are hypothesized as being due to the effects of metabolism, conformation, chelation, or hydrophobicity. Forty-four analogues are synthesized to test the four hypotheses, none of which are strongly supported. A method of quantitation of temporal characteristics of tastant molecules is developed so as to allow comparison of taste appearance time (AT) and extinction time (ET) of experimental compounds. Four of the new compounds, 40 and 43-45, exhibit high sweetness potencies, ranging from 280 and 440 times sucrose, and may be useful in selected food systems. The temporal taste characteristics remain unimproved over NHDHC, however.

  DOI：

  10.1021/jm00136a011