5,5-dimethyl-3-(2-oxo-2-phenylethyl)imidazolidine-2,4-dione | 1136548-61-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 5,5-dimethyl-3-(2-oxo-2-phenylethyl)imidazolidine-2,4-dione
• 英文别名: 5,5-dimethyl-3-phenacylimidazolidine-2,4-dione
• CAS: 1136548-61-2
• 化学式: C₁₃H₁₄N₂O₃
• mdl: MFCD02930122
• 分子量: 246.266
• InChiKey: OGBIKYZCWFWWDS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.307
• 拓扑面积：
  66.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  1,3-二溴-5,5-二甲基海因 、 苯乙酮 在 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 乙腈 为溶剂， 反应 12.0h， 以85%的产率得到5,5-dimethyl-3-(2-oxo-2-phenylethyl)imidazolidine-2,4-dione
  参考文献：
  名称：

  One-Pot Cascade Leading to Direct α-Imidation of Ketones by a Combination of N-Bromosuccinimide and 1,8-Diazabicyclo[5.4.1]undec-7-ene

  摘要：

  A one-pot cascade transformation of ketones into alpha-imidoketones has been developed, in which N-bromosuccinimide (NBS) provides both electrophilic bromine and nucleophilic nitrogen sources, and diazabicyclo[5.4.1]undec-7-ene (DBU) functions as a base and a nucleophilic promoter for the activation of NBS. alpha-Bromination is supposed as the key step in the process, which takes place between more electrophilic bromide active species and enolates.

  DOI：

  10.1021/ol301871s

文献信息

• N-Bromosuccinimide promoted and base switchable one pot synthesis of α-imido and α-amino ketones from styrenes
  作者：Mahesh H. Shinde、Umesh A. Kshirsagar

  DOI：10.1039/c5ob02034d

  日期：——

  N-Bromosuccinimide (NBS) promoted one pot strategy for the synthesis of α-amino functionalized aryl ketones starting from commercially available styrenes has been developed. NBS participates in multiple tasks, such as bromonium ion formation, oxidation of bromohydrin and providing a nucleophilic nitrogen source. The reaction can easily be switched between α-imido and α-amino ketones by the choice of base

  已经开发了一种N-溴琥珀酰亚胺（NBS），促进了从商业上可得到的苯乙烯开始合成α-氨基官能化的芳基酮的一种罐策略。NBS参与多项任务，例如形成溴离子，溴代醇的氧化以及提供亲核氮源。通过选择碱，可以容易地在α-亚氨基和α-氨基酮之间切换反应。该一锅策略已成功应用于精神活性药物候选物，安非拉酮，甲氧麻黄酮和4-MEC的合成。