2-benzyl-5-methoxybenzo[d][1,2]selenazol-3(2H)-one | 1347749-17-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 2-benzyl-5-methoxybenzo[d][1,2]selenazol-3(2H)-one
• 英文别名: 2-Benzyl-5-methoxy-1,2-benzoselenazol-3-one；2-benzyl-5-methoxy-1,2-benzoselenazol-3-one
• CAS: 1347749-17-0
• 化学式: C₁₅H₁₃NO₂Se
• 分子量: 318.234
• InChiKey: VLRFEYOBWVOPCU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.12
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  29.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  N-苄基-2-溴-5-甲氧基苯甲酰胺 在 selenium 、 copper(l) iodide 、 1,10-菲罗啉 、 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 22.0h， 以76%的产率得到2-benzyl-5-methoxybenzo[d][1,2]selenazol-3(2H)-one
  参考文献：
  名称：

  Copper catalyzed/mediated synthetic methodology for ebselen and related isoselenazolones

  摘要：

  Scope of the copper catalyzed/mediated selenium-nitrogen coupling reaction has been studied for the synthesis of isoselenazolones. It is noticed that the 2-chloro, 2-bromo-, and 2-iodo-aryl amides substrates can be exploited in the selenium-nitrogen coupling reaction by employing 25-100 mol % of CuI/1,10-phenanthroline (L) and potassium carbonate as a base in DMF. Furthermore, electron rich 2-chloro-arylamides also underwent selenium-nitrogen coupling reaction to give biologically important selenium-nitrogen heterocycles. Also, copper-catalyzed selenium-nitrogen coupling reaction has been meticulously applied for the synthesis of diaryl diselenides having methoxy, amine, and amide functionality from respective aryl iodides in the presence of stoichiometric amount of succinimide as an external Se-N coupling partner. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.09.141

文献信息

• Synthesis of Benzoisoselenazolones via Rh(III)‐Catalyzed Direct Annulative Selenation by Using Elemental Selenium
  作者：Qing‐Feng Xu‐Xu、Yuji Nishii、Yuta Uetake、Hidehiro Sakurai、Masahiro Miura

  DOI：10.1002/chem.202103485

  日期：2021.12.20

  A Rh(III)-catalyzed direct selenium annulation by using stable and tractable elemental selenium is developed. A series of benzamides as well as acrylamides were successfully coupled with selenium under mild reaction conditions to give isoselenazolone derivatives. An unprecedented selenation mechanism involving an electrophilic Se(IV) species as the reactive selenium donor is proposed based on the designed

  使用稳定且易处理的元素硒开发了Rh(III) 催化的直接硒环化。在温和的反应条件下，一系列苯甲酰胺和丙烯酰胺与硒成功偶联，得到异硒唑酮衍生物。基于设计的控制实验、X 射线吸收光谱和计算研究，提出了一种前所未有的硒化机制，涉及亲电子 Se(IV) 物种作为反应性硒供体。