(E)-3-(2-methoxy-5-methylphenyl)propenal | 889135-71-1

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂醛
• 英文名称: (E)-3-(2-methoxy-5-methylphenyl)propenal
• 英文别名: (E)-3-(2-methoxy-5-methylphenyl)acrylaldehyde；(E)-3-(2-methoxy-5-methylphenyl)prop-2-enal
• CAS: 889135-71-1
• 化学式: C₁₁H₁₂O₂
• 分子量: 176.215
• InChiKey: HVRCJYLNMHSBBM-ONEGZZNKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (E)-3-(2-methoxy-5-methylphenyl)propenal 在 chiral binaphthyl-based rhodium potassium carbonate 作用下， 以 四氢呋喃 、 甲醇 、 水 为溶剂， 反应 2.0h， 生成 (S)-3-(2-methoxy-5-methylphenyl)-3-phenylpropanal
  参考文献：
  名称：

  Highly enantioselective 1,4-addition of arylzinc reagents to 3-arylpropenals catalyzed by a rhodium–binap complex in the presence of chlorotrimethylsilane

  摘要：

  Asymmetric 1,4-addition of arylzinc chlorides to (E)-3-arylpropenals proceeded with high enantioselectivity in the presence of a rhodium/(R)-binap catalyst and chlorotrimethylsilane to give, after hydrolysis, high yields of the corresponding 3.3-diarylpropanals of 98-99% ee. The presence of the chlorosilane is essential for high yields of the 1,4-addition products. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2006.01.036
• 作为产物：
  描述：

  (E)-3-(2-Methoxy-5-methyl-phenyl)-acryloyl chloride 在 lithium tri-t-butoxyaluminum hydride 作用下， 以 四氢呋喃 为溶剂， 反应 1.5h， 以61%的产率得到(E)-3-(2-methoxy-5-methylphenyl)propenal
  参考文献：
  名称：

  Highly enantioselective 1,4-addition of arylzinc reagents to 3-arylpropenals catalyzed by a rhodium–binap complex in the presence of chlorotrimethylsilane

  摘要：

  Asymmetric 1,4-addition of arylzinc chlorides to (E)-3-arylpropenals proceeded with high enantioselectivity in the presence of a rhodium/(R)-binap catalyst and chlorotrimethylsilane to give, after hydrolysis, high yields of the corresponding 3.3-diarylpropanals of 98-99% ee. The presence of the chlorosilane is essential for high yields of the 1,4-addition products. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2006.01.036

文献信息

• Dehydrogenative β-Arylation of Saturated Aldehydes Using Transient Directing Groups
  作者：Xing-Long Zhang、Gao-Fei Pan、Xue-Qing Zhu、Rui-Li Guo、Ya-Ru Gao、Yong-Qiang Wang

  DOI：10.1021/acs.orglett.9b00695

  日期：2019.4.19

  An unprecedented cross-dehydrogenative-coupling (CDC) reaction of saturated aldehyde beta-C-H with arenes to form cinnamaldehydes via the cleavages of four C-H bonds has been developed. The reaction possesses complete E-stereoselectivity for the C = C double bond. The protocol is featured by atom and step economy, mild reaction conditions, and convenient operation.