4,5-dimethoxy-9(10H)-anthracenone | 76403-03-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 蒽
• 英文名称: 4,5-dimethoxy-9(10H)-anthracenone
• 英文别名: 4,5-dimethoxy-anthrone；4,5-Dimethoxy-anthron；4,5-dimethoxy-10H-anthracen-9-one
• CAS: 76403-03-7
• 化学式: C₁₆H₁₄O₃
• 分子量: 254.285
• InChiKey: YNXDXUPTUFLKRN-UHFFFAOYSA-N

物化性质

• 沸点：
  445.3±45.0 °C(Predicted)
• 密度：
  1?+-.0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4,5-dimethoxy-9(10H)-anthracenone 在 盐酸 、 tin(ll) chloride 作用下， 以 溶剂黄146 为溶剂， 反应 24.0h， 以64%的产率得到dithranol
  参考文献：
  名称：

  Syntheses of Anthracenones. 2. Preparation of 1,8-Dimethoxy- (Dimethylanthralin) and 4,5-Dihydroxy-9(10H)-anthracenone (Isoanthralin):  A Revision

  摘要：

  The reduction of 1,8-dimethoxyanthracenedione with zinc dust and aqueous ammonia gives a mixture of 1,8-dimethoxyanthracene and 4,5-dimethoxy-9(10H)-anthracenone, rather than the isomeric 1,8-dimethoxy-9(10H)-anthracenone (dimethylanthralin). This isomer was obtained exclusively using SnCl2 in HCl and acetic acid as reducing agent at room temperature. The structure was confirmed to exist as the tautomeric 1,8-dimethoxy-9-hydroxyanthracene. Furthermore, the reduction of 1,8-diacetoxyanthracenedione with SnCl2 in HCl and acetic acid leads to 1,8-dihydroxy-(10H)-anthracenone (anthralin) rather than 4,5-dihydroxy-9(10H)-anthracenone (isoanthralin), which was prepared by ether cleavage of 4,5-dimethoxy-9(10H)-anthracenone. In light of these findings some biological studies on antipsoriatic anthracenones have to be reconsidered.

  DOI：

  10.1021/jo952036t
• 作为产物：
  描述：

  1,8-二甲氧基蒽醌 在 sodium dithionite 作用下， 以 水 、 N,N-二甲基甲酰胺 为溶剂， 以72%的产率得到4,5-dimethoxy-9(10H)-anthracenone
  参考文献：
  名称：

  蒽酮的合成。1.减少亚硫代次取代的蒽二酮。

  摘要：

  研究了过取代的蒽二酮与连二亚硫酸钠在二甲基甲酰胺和水中的反应。该体系选择性地还原蒽二酮的周围取代基侧接的羰基，得到相应的4，5-二取代的9（10H）-蒽酮，因此提供了一种难以获得的蒽酮途径。可以容许许多官能团，该反应与起始的蒽二酮的周边烷氧基和不饱和侧链的存在相容，并且还原不超过蒽酮阶段。然而，蒽酮的形成取决于周围取代基的性质。从1，8-二甲基取代的蒽二酮和没有取代基的母体化合物没有得到产物。

  DOI：

  10.1021/jo9520351

文献信息

• Breaking Symmetry with Symmetry: Bifacial Selectivity in the Asymmetric Cycloaddition of Anthracene Derivatives
  作者：Carles Rodríguez-Escrich、Rebecca L. Davis、Hao Jiang、Julian Stiller、Tore K. Johansen、Karl Anker Jørgensen

  DOI：10.1002/chem.201300142

  日期：2013.2.25

  Push to activate: A new catalytic strategy for the activation of anthracene derivatives has been developed. From symmetrical starting materials, enantioselective cycloaddition reactions can be achieved by employing a C2‐symmetric aminocatalyst. This selectivity is due to the gain or loss of conjugation between the enamine and the anthracene in the two transition‐state structures. This methodology is demonstrated

  推动活化：已开发出用于活化蒽衍生物的新催化策略。从对称的起始原料，可以通过使用C 2对称的氨基催化剂来实现对映选择性的环加成反应。这种选择性是由于两个过渡态结构中烯胺和蒽之间共轭的得失所致。在14个示例中证明了该方法，其产率为70-96％，ee为76-95％  。
• Zahn; Koch, Chemische Berichte, 1938, vol. 71, p. 172,178
  作者：Zahn、Koch

  DOI：——

  日期：——
• Lithium aluminum hydride reduction of peri-alkoxy-9,10-anthraquinones
  作者：Nagaraj Shyamasundar、Paul Caluwe

  DOI：10.1021/jo00321a006

  日期：1981.4
• Syntheses of Anthracenones. 1. Sodium Dithionite Reduction of <i>peri</i>-Substituted Anthracenediones
  作者：Helge Prinz、Wolfgang Wiegrebe、Klaus Müller

  DOI：10.1021/jo9520351

  日期：1996.1.1

  The reaction of peri-substituted anthracenediones with sodium dithionite in dimethylformamide and water has been investigated. The system selectively reduces the carbonyl group flanked by the peri substituents of the anthracenediones to give the corresponding 4,5-disubstituted 9(10H)-anthracenones and thus provides a route to anthracenones which are otherwise difficult to obtain. Many functional groups

  研究了过取代的蒽二酮与连二亚硫酸钠在二甲基甲酰胺和水中的反应。该体系选择性地还原蒽二酮的周围取代基侧接的羰基，得到相应的4，5-二取代的9（10H）-蒽酮，因此提供了一种难以获得的蒽酮途径。可以容许许多官能团，该反应与起始的蒽二酮的周边烷氧基和不饱和侧链的存在相容，并且还原不超过蒽酮阶段。然而，蒽酮的形成取决于周围取代基的性质。从1，8-二甲基取代的蒽二酮和没有取代基的母体化合物没有得到产物。
• Syntheses of Anthracenones. 2. Preparation of 1,8-Dimethoxy- (Dimethylanthralin) and 4,5-Dihydroxy-9(10<i>H</i>)-anthracenone (Isoanthralin):  A Revision
  作者：Helge Prinz、Thomas Burgemeister、Wolfgang Wiegrebe、Klaus Müller

  DOI：10.1021/jo952036t

  日期：1996.1.1

  The reduction of 1,8-dimethoxyanthracenedione with zinc dust and aqueous ammonia gives a mixture of 1,8-dimethoxyanthracene and 4,5-dimethoxy-9(10H)-anthracenone, rather than the isomeric 1,8-dimethoxy-9(10H)-anthracenone (dimethylanthralin). This isomer was obtained exclusively using SnCl2 in HCl and acetic acid as reducing agent at room temperature. The structure was confirmed to exist as the tautomeric 1,8-dimethoxy-9-hydroxyanthracene. Furthermore, the reduction of 1,8-diacetoxyanthracenedione with SnCl2 in HCl and acetic acid leads to 1,8-dihydroxy-(10H)-anthracenone (anthralin) rather than 4,5-dihydroxy-9(10H)-anthracenone (isoanthralin), which was prepared by ether cleavage of 4,5-dimethoxy-9(10H)-anthracenone. In light of these findings some biological studies on antipsoriatic anthracenones have to be reconsidered.

表征谱图