5-(2-methoxyphenyl)-5-methylpyrrolidin-2-one | 1610701-49-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯烷类
• 英文名称: 5-(2-methoxyphenyl)-5-methylpyrrolidin-2-one
• 英文别名: 5-(2-Methoxyphenyl)-5-methylpyrrolidin-2-one
• CAS: 1610701-49-9
• 化学式: C₁₂H₁₅NO₂
• 分子量: 205.257
• InChiKey: IZCWPKJBZCSGEP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  38.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  1-methoxy-2-(1-nitroethyl)benzene 在 sodium tetrahydroborate 、 nickel chloride hexahydrate 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 甲醇 、 乙腈 为溶剂， 反应 5.5h， 生成 5-(2-methoxyphenyl)-5-methylpyrrolidin-2-one
  参考文献：
  名称：

  Synthesis of 5-alkyl-5-aryl-γ-lactams from 1-aryl-substituted nitroalkanes and methyl acrylate via Michael addition and reductive lactamization

  摘要：

  A general method for accessing 5-alkyl-5-aryl-gamma-lactams has been developed using readily available aryl bromides, nitroalkanes, and methyl acrylate as the starting materials. The palladium-catalyzed arylation of nitroalkanes gave the 1-aryl-substituted nitroalkanes, which underwent the DBU-mediated Michael addition with methyl acrylate at room temperature to afford the methyl 4-aryl-4-nitroalkanoates. The latter were then subjected to the nitro reduction using NaBH4-NiCl2 center dot 6H(2)O in MeOH at 0 degrees C to furnish, after treatment with aqueous K2CO3 at room temperature, the 5-alkyl-5-aryl-gamma-lactams in good to excellent overall yields. Selected examples of N-alkylation of the gamma-lactams were also illustrated. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2014.04.074

文献信息

• Synthesis of 5-alkyl-5-aryl-γ-lactams from 1-aryl-substituted nitroalkanes and methyl acrylate via Michael addition and reductive lactamization
  作者：Jingjing Xu、Xingyao Li、Jinlong Wu、Wei-Min Dai

  DOI：10.1016/j.tet.2014.04.074

  日期：2014.6

  A general method for accessing 5-alkyl-5-aryl-gamma-lactams has been developed using readily available aryl bromides, nitroalkanes, and methyl acrylate as the starting materials. The palladium-catalyzed arylation of nitroalkanes gave the 1-aryl-substituted nitroalkanes, which underwent the DBU-mediated Michael addition with methyl acrylate at room temperature to afford the methyl 4-aryl-4-nitroalkanoates. The latter were then subjected to the nitro reduction using NaBH4-NiCl2 center dot 6H(2)O in MeOH at 0 degrees C to furnish, after treatment with aqueous K2CO3 at room temperature, the 5-alkyl-5-aryl-gamma-lactams in good to excellent overall yields. Selected examples of N-alkylation of the gamma-lactams were also illustrated. (C) 2014 Elsevier Ltd. All rights reserved.