(8R,9S,13S,14S)-13-Methyl-7,8,9,11,12,13,14,15-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diyl bis(dimethylcarbamate) | 1573114-69-8

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: (8R,9S,13S,14S)-13-Methyl-7,8,9,11,12,13,14,15-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diyl bis(dimethylcarbamate)
• CAS: 1573114-69-8
• 化学式: C₂₄H₃₂N₂O₄
• 分子量: 412.529
• InChiKey: FPNXQACWFZCRKY-FDGPYGQJSA-N

物化性质

• 沸点：
  532.9±50.0 °C(predicted)
• 密度：
  1.21±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.8
• 重原子数：
  30.0
• 可旋转键数：
  2.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.58
• 拓扑面积：
  59.08
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  丙烯酸丁酯 、 (8R,9S,13S,14S)-13-Methyl-7,8,9,11,12,13,14,15-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diyl bis(dimethylcarbamate) 在 silver hexafluoroantimonate 、 dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer 、 copper diacetate 作用下， 以 1,4-二氧六环 为溶剂， 反应 16.0h， 以51%的产率得到butyl (E)-3-((8R,9S,13S,14S)-3,17-bis((dimethylcarbamoyl)oxy)-13-methyl-7,8,9,11,12,13,14,15-octahydro-6H-cyclopenta[a]phenanthren-16-yl)acrylate
  参考文献：
  名称：

  Using Rh(III)-Catalyzed C–H Activation as a Tool for the Selective Functionalization of Ketone-Containing Molecules

  摘要：

  Due to the strong potential of C H activation in many areas of organic chemistry, the use of a pre-existing carbonyl group for the installation of a directing group to enable selective and predictable alpha-alkenylation with activated olefins as coupling partners is described. This Heck-type reaction would then lead either to beta,gamma-unsaturated ketones or to variously substituted 1,4-butadienes depending on the conditions used for the cleavage of the directing group.

  DOI：

  10.1021/ol500258q
• 作为产物：
  描述：

  (8R,9S,13S,14S)-13-methyl-17-oxo-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-3-yl dimethylcarbamate 在 sodium tetrahydroborate 作用下， 以 甲醇 为溶剂， 反应 3.0h， 以165 mg的产率得到(8R,9S,13S,14S)-13-Methyl-7,8,9,11,12,13,14,15-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diyl bis(dimethylcarbamate)
  参考文献：
  名称：

  Using Rh(III)-Catalyzed C–H Activation as a Tool for the Selective Functionalization of Ketone-Containing Molecules

  摘要：

  Due to the strong potential of C H activation in many areas of organic chemistry, the use of a pre-existing carbonyl group for the installation of a directing group to enable selective and predictable alpha-alkenylation with activated olefins as coupling partners is described. This Heck-type reaction would then lead either to beta,gamma-unsaturated ketones or to variously substituted 1,4-butadienes depending on the conditions used for the cleavage of the directing group.

  DOI：

  10.1021/ol500258q

文献信息

• Development and Mechanistic Studies of Iron-Catalyzed Construction of Csp²–B Bonds via C–O Bond Activation
  作者：Shasha Geng、Juan Zhang、Shuo Chen、Zhengli Liu、Xiaoqin Zeng、Yun He、Zhang Feng

  DOI：10.1021/acs.orglett.0c01937

  日期：2020.7.17

  Herein we describe an iron-catalyzed borylation of alkenyl and aryl carbamates through the activation of a C–O bond. This protocol exhibits high efficiency, a broad substrate scope, and the late-stage borylation of biorelevant compounds, thus providing potential applications in medicinal chemistry. Moreover, this method enables orthogonal transformations of phenol derivatives and also offers good opportunities

  在本文中，我们描述了通过C-O键的活化，铁催化的烯基和芳基氨基甲酸酯的硼酸酯化反应。该方案显示出高效率，广泛的底物范围以及生物相关化合物的后期硼化，因此在药物化学中提供了潜在的应用。而且，该方法能够使酚衍生物进行正交转化，并且还为合成多取代的芳烃提供了良好的机会。初步的机理研究表明，通过自由基途径的Fe II / Fe III催化循环可能与反应有关。
• Rhodium‐Catalyzed Vinylic C–H Functionalization of Enol Carbamates with Maleimides
  作者：Satyasheel Sharma、Sang Hoon Han、Hyeim Jo、Sangil Han、Neeraj Kumar Mishra、Miji Choi、Taejoo Jeong、Jihye Park、In Su Kim

  DOI：10.1002/ejoc.201600558

  日期：2016.7

  The rhodium(III)-catalyzed direct C–H functionalization of enol carbamates with a range of maleimides is described. With the assistance of the carbamoyl directing group, this reaction provides biologically relevant succinimide compounds by proceeding through a C–Rh addition and subsequent protonation pathway.

  描述了铑 (III) 催化的烯醇氨基甲酸酯与一系列马来酰亚胺的直接 C-H 官能化。在氨基甲酰基导向基团的帮助下，该反应通过 C-Rh 加成和随后的质子化途径提供生物相关的琥珀酰亚胺化合物。