(3S,4S)-4-azido-3,4-dihydro-3-phenylisochromen-1-one | 1354004-77-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: (3S,4S)-4-azido-3,4-dihydro-3-phenylisochromen-1-one
• 英文别名: (3S,4S)-4-azido-3-phenyl-3,4-dihydroisochromen-1-one
• CAS: 1354004-77-5
• 化学式: C₁₅H₁₁N₃O₂
• 分子量: 265.271
• InChiKey: VQHMQUOLPBPMKW-KBPBESRZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  40.7
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  (3S,4R)-4-bromo-3-phenyl-3,4-dihydro-1H-2-benzopyran-1-one 在 sodium azide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 24.0h， 以90%的产率得到(3S,4S)-4-azido-3,4-dihydro-3-phenylisochromen-1-one
  参考文献：
  名称：

  An Enantioselective Approach toward 3,4-Dihydroisocoumarin through the Bromocyclization of Styrene-type Carboxylic Acids

  摘要：

  A facile and enantioselective approach toward 3,4-dihydroisocoumarin was developed. The method involved an amino-thiocarbamate catalyzed enantioselective bromocyclization of styrene-type carboxylic acids, yielding 3-bromo-3,4-dihydroisocoumarins with good yields and ee's. 3-Bromo-3,4-dihydroisocoumarins are versatile building blocks for various dihydroisocoumarin derivatives in which the Br group can readily be modified to achieve biologically important 4-O-type and 4-N-type 3,4-dihydroisocoumarin systems. In addition, studies indicated that, by refining some parameters, the synthetically useful 5-exo phthalide products could be achieved with good yields and ee's.

  DOI：

  10.1021/jo202221c

文献信息

• An Enantioselective Approach toward 3,4-Dihydroisocoumarin through the Bromocyclization of Styrene-type Carboxylic Acids
  作者：Jie Chen、Ling Zhou、Chong Kiat Tan、Ying-Yeung Yeung

  DOI：10.1021/jo202221c

  日期：2012.1.20

  A facile and enantioselective approach toward 3,4-dihydroisocoumarin was developed. The method involved an amino-thiocarbamate catalyzed enantioselective bromocyclization of styrene-type carboxylic acids, yielding 3-bromo-3,4-dihydroisocoumarins with good yields and ee's. 3-Bromo-3,4-dihydroisocoumarins are versatile building blocks for various dihydroisocoumarin derivatives in which the Br group can readily be modified to achieve biologically important 4-O-type and 4-N-type 3,4-dihydroisocoumarin systems. In addition, studies indicated that, by refining some parameters, the synthetically useful 5-exo phthalide products could be achieved with good yields and ee's.