benzyl 3-(1-benzyl-1H-pyrrol-2-yl)acrylate | 881189-28-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: benzyl 3-(1-benzyl-1H-pyrrol-2-yl)acrylate
• 英文别名: benzyl (E)-3-(1-benzylpyrrol-2-yl)prop-2-enoate
• CAS: 881189-28-2
• 化学式: C₂₁H₁₉NO₂
• 分子量: 317.387
• InChiKey: NSZKQEDATYVCIR-BUHFOSPRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  24
• 可旋转键数：
  7
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  31.2
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  benzyl 3-(1-benzyl-1H-pyrrol-2-yl)acrylate 700.0 ℃ 、2.7 Pa 条件下， 以21%的产率得到5-benzylpyrrolizin-3-one
  参考文献：
  名称：

  Flash vacuum pyrolysis of 2,2-dioxo-1H,3H-pyrrolo[1,2-c]thiazoles and 2-vinyl-1H-pyrroles

  摘要：

  The flash vacuum pyrolysis of new 1,1-dimethyl- and 1-methyl-1H,3H-pyrrolo[1,2-c]thiazole-2,2-dioxides gave penta-substituted 2-vinyl-1H-pyrroles via sigmatropic [1,8]-H shift of the corresponding azafulvenium methide intermediates. In some cases these 1H-pyrroles underwent rearrangement to 2-allyl-1H-pyrroles. Di-substituted 2-vinylpyrroles have also been prepared and their reactivity studied. Under FVP N-benzyl-pyrrol-2-ylpropenoates were converted into 3H-pyrrolizin-3-ones. On the other hand, microwave-assisted reaction of 1-benzyl-2-vinyl-1H-pyrrole gave a 4,5,6,7-tetrahydro-1H-indole derivative. (C) 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2008.07.079
• 作为产物：
  描述：

  1-benzyl-1H-pyrrole-2-carbaldehyde 、 (苄氧羰基亚甲基)三苯基膦 以 甲苯 为溶剂， 反应 24.0h， 以80%的产率得到benzyl 3-(1-benzyl-1H-pyrrol-2-yl)acrylate
  参考文献：
  名称：

  Flash vacuum pyrolysis of 2,2-dioxo-1H,3H-pyrrolo[1,2-c]thiazoles and 2-vinyl-1H-pyrroles

  摘要：

  The flash vacuum pyrolysis of new 1,1-dimethyl- and 1-methyl-1H,3H-pyrrolo[1,2-c]thiazole-2,2-dioxides gave penta-substituted 2-vinyl-1H-pyrroles via sigmatropic [1,8]-H shift of the corresponding azafulvenium methide intermediates. In some cases these 1H-pyrroles underwent rearrangement to 2-allyl-1H-pyrroles. Di-substituted 2-vinylpyrroles have also been prepared and their reactivity studied. Under FVP N-benzyl-pyrrol-2-ylpropenoates were converted into 3H-pyrrolizin-3-ones. On the other hand, microwave-assisted reaction of 1-benzyl-2-vinyl-1H-pyrrole gave a 4,5,6,7-tetrahydro-1H-indole derivative. (C) 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2008.07.079

文献信息

• Mild Aerobic Oxidative Palladium (II) Catalyzed C−H Bond Functionalization:  Regioselective and Switchable C−H Alkenylation and Annulation of Pyrroles
  作者：Elizabeth M. Beck、Neil P. Grimster、Richard Hatley、Matthew J. Gaunt

  DOI：10.1021/ja058141u

  日期：2006.3.1

  A palladium catalyzed C-H bond functionalization system that operates under ambient and aerobic conditions can be used to alkenylate pyrroles with control of regioselectivty. A steric and electronic control strategy can be used to influence positional control in the C-H bond functionalization process that results in either the C2 or C3 alkenylated products. Air, molecular oxygen, or tBuOOBz can be used as reoxidant in this mild process, and the reaction works on a range of substrates. Finally a catalytic aerobic annulation strategy is described that can be controlled to produce cyclization at either the C2 or C3 positions, thus forming diverse pyrrole products.