3-methyl-2-(4'-nitrophenyl)-4H-benzopyrane 4-one | 775315-33-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 黄酮类化合物
• 英文名称: 3-methyl-2-(4'-nitrophenyl)-4H-benzopyrane 4-one
• 英文别名: 3-methyl-4'-nitroflavone；3-Methyl-2-(4-nitrophenyl)chromen-4-one
• CAS: 775315-33-8
• 化学式: C₁₆H₁₁NO₄
• 分子量: 281.268
• InChiKey: IHBMYWCPERKOHM-UHFFFAOYSA-N

物化性质

• 熔点：
  192-193 °C
• 沸点：
  450.7±45.0 °C(Predicted)
• 密度：
  1.345±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  21
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.06
• 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：

  3-methyl-2-(4'-nitrophenyl)-4H-benzopyrane 4-one 在 N-溴代丁二酰亚胺(NBS) 、 sodium hydride 、 过氧化苯甲酰 作用下， 以 四氢呋喃 、 四氯化碳 、 甲苯 为溶剂， 反应 27.0h， 生成 (E)-3-(4-nitrostyryl)flavone
  参考文献：
  名称：

  One-Pot Synthesis of 3-Methylflavones and Their Transformation into (E)-3-Styrylflavones via Wittig Reactions

  摘要：

  An efficient one-pot synthesis of 3-methylflavone derivatives is established. Furthermore, their transformation into phosphorus ylides, which are then used in the diastereoselective synthesis of (E)-styrylflavones through Wittig reactions, is also studied.

  DOI：

  10.1055/s-0033-1340013
• 作为产物：
  描述：

  1-(2-hydroxyphenyl)-2-methyl-3-(4-nitrophenyl)prop-2-en-1-one 在 碘 作用下， 以 二甲基亚砜 为溶剂， 以85%的产率得到3-methyl-2-(4'-nitrophenyl)-4H-benzopyrane 4-one
  参考文献：
  名称：

  Jayashree; Alam, Afroze; Kumar, D. Vijay, Indian Journal of Heterocyclic Chemistry, 2010, vol. 19, # 3, p. 237 - 240

  摘要：

  DOI：

文献信息

• A Novel Method for Preparing Chromones via 1,2-Migration of α-Diazo-Flavanones
  作者：Baochun Ma、Minghao Sun、Kejia You、Nian Chen

  DOI：10.1055/a-1948-7303

  日期：2023.2

  A novel method for preparing chromones from α-diazo-flavanones has been developed. Good yields and regioselectivity are obtained through HCl catalysis and Rh2(Oct)4 catalysis. The chromone obtained can undergo a one-pot Diels–Alder reaction to synthesize flavanone propellane in high yield. Mechanisms about 1,2-migration under both catalysts are proposed.

  开发了一种从 α-重氮黄烷酮制备色酮的新方法。通过HCl催化和Rh 2 (Oct) 4催化获得了良好的产率和区域选择性。获得的色酮可以通过一锅 Diels-Alder 反应以高产率合成黄烷酮推进剂。提出了两种催化剂下 1,2-迁移的机理。
• Lead Optimization Providing a Series of Flavone Derivatives as Potent Nonsteroidal Inhibitors of the Cytochrome P450 Aromatase Enzyme
  作者：Silvia Gobbi、Andrea Cavalli、Angela Rampa、Federica Belluti、Lorna Piazzi、Anja Paluszcak、Rolf W. Hartmann、Maurizio Recanatini、Alessandra Bisi

  DOI：10.1021/jm060186y

  日期：2006.7.1

  Following our SAR studies on aromatase inhibitors, new compounds were designed by appropriately modifying the structure of flavone 1 using our previously reported CoMFA model. While the introduction of substituents on the 2-phenyl ring alone did not cause improvement in potency, these modifications and the removal of the 7-methoxy group led to compounds showing inhibitory activity in the nanomolar range, comparable to the marketed drug fadrozole.
• Jayashree; Alam, Afroze; Kumar, D. Vijay, Indian Journal of Heterocyclic Chemistry, 2010, vol. 19, # 3, p. 237 - 240
  作者：Jayashree、Alam, Afroze、Kumar, D. Vijay、Nayak, Yogendra

  DOI：——

  日期：——
• One-Pot Synthesis of 3-Methylflavones and Their Transformation into (E)-3-Styrylflavones via Wittig Reactions
  作者：Diana Pinto、Artur Silva、Djenisa Rocha

  DOI：10.1055/s-0033-1340013

  日期：——

  An efficient one-pot synthesis of 3-methylflavone derivatives is established. Furthermore, their transformation into phosphorus ylides, which are then used in the diastereoselective synthesis of (E)-styrylflavones through Wittig reactions, is also studied.
• Synthesis of 3-methylflavones and their antioxidant and antibacterial activities
  作者：B. S. Jayashree、Afroze Alam、Yogendra Nayak、D. Vijay Kumar

  DOI：10.1007/s00044-011-9725-y

  日期：2012.8

  An attempt was made to synthesise newer 3-methylflavones with various substitution on the ring A and B of 2-phenylchromen-4-one. They were evaluated for antioxidant activity and antibacterial activity against the Gram-positive and Gram-negative bacteria. Five test compounds exhibited DPPH radical scavenging activity with IC50 below 100 mu g/ml, and the same test compounds exhibited 50-100% growth inhibition in Gram-positive bacteria against standard Amoxicillin.