4-Bromo-2-(methylphenylamino)benzaldehyde | 1099629-83-0

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: 4-Bromo-2-(methylphenylamino)benzaldehyde
• 英文别名: 4-bromo-2-(N-methylanilino)benzaldehyde
• CAS: 1099629-83-0
• 化学式: C₁₄H₁₂BrNO
• mdl: MFCD11651740
• 分子量: 290.159
• InChiKey: NWMDHVDHOAHLGA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.071
• 拓扑面积：
  20.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4-Bromo-2-(methylphenylamino)benzaldehyde 在 sodium sulfate 、 scandium tris(trifluoromethanesulfonate) 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 20.0h， 以65%的产率得到3-Brom-10-methylacridon
  参考文献：
  名称：

  Sc(OTf)₃-Catalyzed Dehydrogenative Cyclization for Synthesis of N-Methylacridones

  摘要：

  A novel method has been developed for the synthesis of substituted N-methylacridones from 2-(N-methyl-N-phenylamino)benzaldehydes via dehydrogenative cyclization. This transformation involves two primary processes: the aldehyde first coordinates with Sc(OTf)(3) and induces the aromatic electrophilic substitution (SEAr) reaction to form the active intermediate N-methyl-acridin-9-ol, which is then quickly oxidized in situ to afford the acridones. Furthermore, the procedure involved is both environmental friendly and atom efficient; H2O is the only byproduct in this reaction.

  DOI：

  10.1021/ol400371h
• 作为产物：
  描述：

  苯胺 在 lithium aluminium tetrahydride 、 copper diacetate 、 sodium acetate 、 sodium hydride 、 2-碘酰基苯甲酸 作用下， 以 四氢呋喃 、 水 、 乙酸乙酯 、 N,N-二甲基甲酰胺 为溶剂， 反应 6.25h， 生成 4-Bromo-2-(methylphenylamino)benzaldehyde
  参考文献：
  名称：

  Sc(OTf)₃-Catalyzed Dehydrogenative Cyclization for Synthesis of N-Methylacridones

  摘要：

  A novel method has been developed for the synthesis of substituted N-methylacridones from 2-(N-methyl-N-phenylamino)benzaldehydes via dehydrogenative cyclization. This transformation involves two primary processes: the aldehyde first coordinates with Sc(OTf)(3) and induces the aromatic electrophilic substitution (SEAr) reaction to form the active intermediate N-methyl-acridin-9-ol, which is then quickly oxidized in situ to afford the acridones. Furthermore, the procedure involved is both environmental friendly and atom efficient; H2O is the only byproduct in this reaction.

  DOI：

  10.1021/ol400371h

文献信息

• Sc(OTf)₃-Catalyzed Dehydrogenative Cyclization for Synthesis of <i>N</i>-Methylacridones
  作者：Xi-An Li、Hong-Li Wang、Shang-Dong Yang

  DOI：10.1021/ol400371h

  日期：2013.4.19

  A novel method has been developed for the synthesis of substituted N-methylacridones from 2-(N-methyl-N-phenylamino)benzaldehydes via dehydrogenative cyclization. This transformation involves two primary processes: the aldehyde first coordinates with Sc(OTf)(3) and induces the aromatic electrophilic substitution (SEAr) reaction to form the active intermediate N-methyl-acridin-9-ol, which is then quickly oxidized in situ to afford the acridones. Furthermore, the procedure involved is both environmental friendly and atom efficient; H2O is the only byproduct in this reaction.