2-(4-chlorophenyl)-3-hydroxy-1-phenylpropan-1-one | 1430342-21-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: 2-(4-chlorophenyl)-3-hydroxy-1-phenylpropan-1-one
• 英文别名: 2-(4-Chlorophenyl)-3-hydroxy-1-phenylpropan-1-one
• CAS: 1430342-21-4
• 化学式: C₁₅H₁₃ClO₂
• 分子量: 260.72
• InChiKey: KRBNBQCQWZAYDD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2-(4-chlorophenyl)-3-oxo-3-phenylpropanal 在 1,3-二甲基-2-苯基-2H-苯并咪唑 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 以65%的产率得到2-(4-chlorophenyl)-3-hydroxy-1-phenylpropan-1-one
  参考文献：
  名称：

  Metal-Free, One-Pot, Sequential Protocol for Transforming α,β-Epoxy Ketones to β-Hydroxy Ketones and α-Methylene Ketones

  摘要：

  A new sequential, one-pot protocol for transforming 1,3-disubstituted 2,3-epoxy ketones to beta-hydroxy ketones and alpha-methylene ketones has been developed. Reaction of epoxy ketones with boron trifluoride etherate ((BF3OEt2)-O-.) generates the cationic intermediates by regioselective epoxide ring opening and an acyl shift. Then, a treatment of these cations with 2-aryl-1,3-dimethylbenzimidazolines (DMBIH) results in formation of 1,2-disubstituted 3-hydroxy ketones. DMBIH serves as a hydride donor in the second step of this process. Finally, the beta-hydroxy ketones can be converted to 1,2-disubstituted 2-methylene ketones by treatment with methanesulfonic acid or a combination of methanesulfonyl chloride and triethylamine. Importantly, the sequential steps involved in formation of the alpha-methylene ketone products can be carried out in one pot.

  DOI：

  10.1021/jo5025249

文献信息

• Copper-Catalyzed Regioselective Reaction of Internal Alkynes and Diaryliodonium Salts
  作者：Ze-Feng Xu、Chen-Xin Cai、Jin-Tao Liu

  DOI：10.1021/ol4003543

  日期：2013.5.3

  The copper-catalyzed highly regioselective reaction of internal alkynes with diaryliodonium salts was achieved for the first time. α-Arylketones were obtained in moderate to good yields from arylpropargylic alcohols or aryl alkyl alkynes under mild conditions. It was found that the two kinds of substrates underwent two different arylation–oxygenation pathways under different reaction conditions based

  首次实现了内部炔烃与二芳基碘鎓盐的铜催化的高度区域选择性反应。在温和的条件下，从芳基炔丙醇或芳基烷基炔烃以中等至良好的产率获得α-芳基酮。基于氘代实验，控制实验和反应中间体的光谱分析，发现两种底物在不同的反应条件下经历了两种不同的芳构化-加氧途径。
• Metal-Free, One-Pot, Sequential Protocol for Transforming α,β-Epoxy Ketones to β-Hydroxy Ketones and α-Methylene Ketones
  作者：Eietsu Hasegawa、Saki Arai、Eiji Tayama、Hajime Iwamoto

  DOI：10.1021/jo5025249

  日期：2015.2.6

  A new sequential, one-pot protocol for transforming 1,3-disubstituted 2,3-epoxy ketones to beta-hydroxy ketones and alpha-methylene ketones has been developed. Reaction of epoxy ketones with boron trifluoride etherate ((BF3OEt2)-O-.) generates the cationic intermediates by regioselective epoxide ring opening and an acyl shift. Then, a treatment of these cations with 2-aryl-1,3-dimethylbenzimidazolines (DMBIH) results in formation of 1,2-disubstituted 3-hydroxy ketones. DMBIH serves as a hydride donor in the second step of this process. Finally, the beta-hydroxy ketones can be converted to 1,2-disubstituted 2-methylene ketones by treatment with methanesulfonic acid or a combination of methanesulfonyl chloride and triethylamine. Importantly, the sequential steps involved in formation of the alpha-methylene ketone products can be carried out in one pot.