2-(1-methoxyvinyl)-3-methylimidazolidine | 1356914-86-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪烷类
• 英文名称: 2-(1-methoxyvinyl)-3-methylimidazolidine
• 英文别名: 2-(1-methoxyethenyl)-1-methylimidazolidine
• CAS: 1356914-86-7
• 化学式: C₇H₁₄N₂O
• 分子量: 142.201
• InChiKey: ZOANXANNQZGEKG-UHFFFAOYSA-N

物化性质

• 沸点：
  192.7±35.0 °C(Predicted)
• 密度：
  0.962±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.1
• 重原子数：
  10
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  24.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-methoxyacrolein 、 N-甲基乙二胺 以61%的产率得到2-(1-methoxyvinyl)-3-methylimidazolidine
  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