1-phenyl-1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-one | 473998-96-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑烷类
• 英文名称: 1-phenyl-1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-one
• 英文别名: 1-phenyl-1,2,3,9b-tetrahydroimidazo[2,1-a]isoindol-9-one；1-phenyl-3,9b-dihydro-2H-imidazo[1,2-b]isoindol-5-one
• CAS: 473998-96-8
• 化学式: C₁₆H₁₄N₂O
• 分子量: 250.3
• InChiKey: MFSYWVDZVLCJAM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  19
• 可旋转键数：
  1
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  23.6
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-phenyl-1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-one 在 三氟乙酸 作用下， 反应 24.0h， 以89%的产率得到5,6,7,13b-tetrahydroisoindolo[2,1-d][1,4]benzodiazepin-9-one
  参考文献：
  名称：

  Kinetic versus thermodynamic access to imidazoisoindolones, benzimidazoisoindolones, and [1,4]diazepinoisoindolones: intramolecular nitrogen and π-aromatic trapping of N-acyliminium cation

  摘要：

  Efficient assembly of substituted imidazo[2,1-a]isoindolones I is reported from suitable alpha,beta-diamine IV (or corresponding (beta-nitroamine) and phthalic anhydride (1) in a three- or four-step sequence in good yields. The key step of this methodology is based on an intramolecular alpha-aza-amidoalkylation of the N-acyliminium species. Furthermore, when R-2 is an aromatic moiety a competing alpha-amidoalkylation took place and imidazo[2,1-a]isoindolones (or benzimidazo[2,1-a]isoindolones) I and/or isoindolo[1,4]benzodiazepines III were obtained under kinetic or thermodynamic control. The chemoselectivity of these transformations is also discussed. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.07.107
• 作为产物：
  描述：

  N-(2-(苯基氨基)乙基)邻苯二甲酰亚胺 在 sodium tetrahydroborate 、 对甲苯磺酸 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 12.08h， 生成 1-phenyl-1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-one
  参考文献：
  名称：

  Kinetic versus thermodynamic access to imidazoisoindolones, benzimidazoisoindolones, and [1,4]diazepinoisoindolones: intramolecular nitrogen and π-aromatic trapping of N-acyliminium cation

  摘要：

  Efficient assembly of substituted imidazo[2,1-a]isoindolones I is reported from suitable alpha,beta-diamine IV (or corresponding (beta-nitroamine) and phthalic anhydride (1) in a three- or four-step sequence in good yields. The key step of this methodology is based on an intramolecular alpha-aza-amidoalkylation of the N-acyliminium species. Furthermore, when R-2 is an aromatic moiety a competing alpha-amidoalkylation took place and imidazo[2,1-a]isoindolones (or benzimidazo[2,1-a]isoindolones) I and/or isoindolo[1,4]benzodiazepines III were obtained under kinetic or thermodynamic control. The chemoselectivity of these transformations is also discussed. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.07.107

文献信息

• Stereoselective syntheses of chiral (3S,9bS)-1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-ones
  作者：Alan R. Katritzky、Hai-Ying He、Akhilesh K. Verma

  DOI：10.1016/s0957-4166(02)00220-3

  日期：2002.6

  Chiral (3S,9bS)-1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-ones 11a-11f, 14b.14c and 17a,b were prepared in 78-93% yields with high stereoselectivities (d.e. >99%) by the intermolecular condensations of 2-formylbenzoic acids 10 or 13 or 2-acetylbenzoic acid 15 with chiral diamines 9a-9f and 9h. Compounds 9a-9f and 9h were readily prepared in three steps from optically active N-Boc-alpha-amino acids 5a-5d. (C) 2002 Elsevier Science Ltd. All rights reserved.