1-benzyl-3-methoxy-6-methyl-5-[(E)-2-phenylethenyl]-2(1H)-pyrazinone

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 1-benzyl-3-methoxy-6-methyl-5-[(E)-2-phenylethenyl]-2(1H)-pyrazinone
• 化学式: C₂₁H₂₀N₂O₂
• 分子量: 332.402
• InChiKey: AHFFMKWMPPJYJE-BUHFOSPRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.78
• 重原子数：
  25.0
• 可旋转键数：
  5.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  44.12
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  1-benzyl-5-chloro-3-methoxy-6-methyl-2(1H)-pyrazinone 在 palladium on activated charcoal N-溴代丁二酰亚胺(NBS) 、 四(三苯基膦)钯 、 氢气 、 sodium carbonate 、 potassium carbonate 作用下， 以 甲醇 、 乙二醇二甲醚 、 N,N-二甲基甲酰胺 为溶剂， 反应 18.0h， 生成 1-benzyl-3-methoxy-6-methyl-5-[(E)-2-phenylethenyl]-2(1H)-pyrazinone
  参考文献：
  名称：

  Expanding the substitution pattern of 2(1H)-pyrazinones via Suzuki and Heck reactions

  摘要：

  Various 3,5-dichloropyrazinones were substituted at the C-3 position with (hetero)aryl, alkyl and alkenyl groups by means of Suzuki and Heck reactions. The methodology could be extended to reactions on the far less reactive C-5 position by transhalogenation of the 5-Cl substituent to a 5-Br or a 5-I group prior to performing the cross-coupling. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2005.02.056

文献信息

• Expanding the substitution pattern of 2(1H)-pyrazinones via Suzuki and Heck reactions
  作者：Rasha Azzam、Wim M. De Borggraeve、Frans Compernolle、Georges J. Hoornaert

  DOI：10.1016/j.tet.2005.02.056

  日期：2005.4

  Various 3,5-dichloropyrazinones were substituted at the C-3 position with (hetero)aryl, alkyl and alkenyl groups by means of Suzuki and Heck reactions. The methodology could be extended to reactions on the far less reactive C-5 position by transhalogenation of the 5-Cl substituent to a 5-Br or a 5-I group prior to performing the cross-coupling. (c) 2005 Elsevier Ltd. All rights reserved.