1-(1,3-diphenylimidazolidin-2-yl)ethanone | 1356914-84-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: 1-(1,3-diphenylimidazolidin-2-yl)ethanone
• CAS: 1356914-84-5
• 化学式: C₁₇H₁₈N₂O
• 分子量: 266.343
• InChiKey: ZOCSRKPNEQYKFO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.93
• 重原子数：
  20.0
• 可旋转键数：
  3.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  23.55
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为产物：
  描述：

  2-(1'-methoxyvinyl)-1,3-diphenyl-1,3-imidazolidine 在 对甲苯磺酸 作用下， 以 氯仿 、 水 为溶剂， 反应 24.0h， 以41%的产率得到1-(1,3-diphenylimidazolidin-2-yl)ethanone
  参考文献：
  名称：

  Regioselectivity of the hydrolysis of 2-(1-alkoxyvinyl)-substituted imidazolidines, 1,3-thiazolidines, and 1,3-oxazolidines

  摘要：

  2-(1-Alkoxyvinyl)-1,3-thiazolidines reacted with H2O or D2O in the presence of 105 mol % of p-toluenesulfonic acid or trifluoroacetic acid (20 degrees C, 1 h) to give 2-acetyl-1,3-thiazolidine in quantitative yield. 2-(1-Alkoxyvinyl)-3,5-diphenylimidazolidines underwent hydrolysis in the presence of 20 mol % of an acid (20 degrees C, 24 h) at the vinyloxy group with high regioselectivity yielding 2-acetylimidazolidines. Hydrolysis of 2-(1-alkoxyvinyl)-3-phenyl-1,3-oxazolidines in the presence of 10 mol % of p-toluenesulfonic acid (20 degrees C, 5 days) takes two pathways, one of which involves the endocyclic C-O bond with ring opening and the other involves the vinyloxy group to produce 2-acetyl-3-phenyl-1,3-oxazolidine. Unlike phenyl-substituted 1,3-thiazolidines and imidazolidines, hydrolysis of their 3-methyl-and 3,5-dimethyl-substituted analogs in acid medium occurs mainly via ring opening. The observed hydrolysis pathways were interpreted in terms of B3PW91/6-311G(d,p) quantum-chemical calculations.

  DOI：

  10.1134/s1070428011120098