5-methyl-8-iso-propyl-4-phenyl-2H-chromen-2-one

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 新黄酮类化合物
• 英文名称: 5-methyl-8-iso-propyl-4-phenyl-2H-chromen-2-one
• 英文别名: 4-phenyl-5-methyl-8-isopropylcoumarin；5-Methyl-4-phenyl-8-propan-2-ylchromen-2-one
• 化学式: C₁₉H₁₈O₂
• 分子量: 278.351
• InChiKey: ODRCWJCDHOXFGR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  21
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.21
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  在 双氧水 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 1.33h， 生成 5-methyl-8-iso-propyl-4-phenyl-2H-chromen-2-one
  参考文献：
  名称：

  TMSOTf催化的链状烯烃分子内硒基芳基化反应方便地固相合成香豆素

  摘要：

  使用聚苯乙烯负载的琥珀酰亚胺亚硒酸酯作为硒源，进行TMSOTf催化的链状烯烃分子内硒基芳基化反应。该催化方法为区域选择性合成具有硒代功能的二氢香豆素提供了一种有效的方法，随后同步消除亚硒酸盐以提供高收率和纯度的香豆素。还进行了树脂结合的溴代二氢香豆素的Suzuki交叉偶联反应，并且通过随后裂解硒连接基获得联苯香豆素。 硒-环化-TMSOTf-香豆素-固相合成-碳-碳键形成-催化

  DOI：

  10.1055/s-0031-1290618

文献信息

• New Method for Preparation of Coumarins and Quinolinones via Pd-Catalyzed Intramolecular Hydroarylation of C−C Triple Bonds
  作者：Chengguo Jia、Dongguo Piao、Tsugio Kitamura、Yuzo Fujiwara

  DOI：10.1021/jo000861q

  日期：2000.11.1

  A new and general method has been developed for preparation of coumarins and quinolinones by intramolecular hydroarylation of alkynes. Various aryl alkynoates and alkynanilides undergo fast intramolecular reaction at room temperature in the presence of a catalytic amount of Pd(OAc)(2) in a mixed solvent containing trifluoroacetic acid (TFA), affording coumarins and quinolinones in moderate to excellent yields with more than 1000 turnover numbers (TON) to Pd. The methodology proved to tolerate a number of functional groups such as Br and CHO. On the basis of isotope experiments, a possible mechanism involving ethynyl chelation-assisted electrophilic metalation of aromatic C-H bonds by in-situ generated cationic Pd(II) species has been discussed. Also the involvement of vinylcationic species has been suggested.
• A Convenient Solid-Phase Synthesis of Coumarins by TMSOTf-Catalyzed Intramolecular Seleno-Arylation of Tethered Alkenes
  作者：E. Tang、Wen Li、Zhangyong Gao

  DOI：10.1055/s-0031-1290618

  日期：2012.4

  performed using polystyrene-supported succinimidyl selenide as the selenium source. This catalytic process provides an efficient method for the regioselective synthesis of dihydrocoumarins possessing a seleno functionality, followed by syn elimination of selenoxides to provide coumarins in good yields and purities. Suzuki cross-coupling reaction of the resin-bound bromodihydrocoumarin was also performed

  使用聚苯乙烯负载的琥珀酰亚胺亚硒酸酯作为硒源，进行TMSOTf催化的链状烯烃分子内硒基芳基化反应。该催化方法为区域选择性合成具有硒代功能的二氢香豆素提供了一种有效的方法，随后同步消除亚硒酸盐以提供高收率和纯度的香豆素。还进行了树脂结合的溴代二氢香豆素的Suzuki交叉偶联反应，并且通过随后裂解硒连接基获得联苯香豆素。 硒-环化-TMSOTf-香豆素-固相合成-碳-碳键形成-催化