(-)-sacidumlignan B | 781658-08-0

• 分子结构分类: 有机化合物 - 木脂素、新木脂素和相关化合物 - 芳基四氢萘木脂素
• 英文名称: (-)-sacidumlignan B
• 英文别名: Sacidumlignan B；(5R,6S)-5-(4-hydroxy-3,5-dimethoxyphenyl)-1,3-dimethoxy-6,7-dimethyl-5,6-dihydronaphthalen-2-ol
• CAS: 781658-08-0
• 化学式: C₂₂H₂₆O₆
• 分子量: 386.445
• InChiKey: FTMPPAUMNSIYCL-CWTRNNRKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  28
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  77.4
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  tert-butyl(((5R,6S)-5-(4-((tert-butyldimethylsilyl)oxy)-3,5-dimethoxyphenyl)-1,3-dimethoxy-6,7-dimethyl-5,6-dihydronaphthalen-2-yl)oxy)dimethylsilane 在 四丁基氟化铵 作用下， 以 四氢呋喃 为溶剂， 反应 0.5h， 以95%的产率得到(-)-sacidumlignan B
  参考文献：
  名称：

  Total Synthesis of (−)-Sacidumlignans B and D

  摘要：

  The first total synthesis of naturally occurring sacidumlignans A (1), B (2), and D (4) was executed and the absolute configuration of 2 and 4 was determined. A diastereoselective alpha- methylation of a lactone was used as the key step for the control of the chiral centers of the central lignan core. An acid mediated dehydrative cyclization of an aldehyde to construct the dihydronaphthalene unit of 2 and the aromatization of the intermediate dihydronaphthalene derivative to synthesize 1 are the key reactions employed in this regard.

  DOI：

  10.1021/jo2021696

文献信息

• Base-promoted addition of DMA with 1,1-diarylethylenes: application to a total synthesis of (−)-sacidumlignan B
  作者：Zhen-Biao Luo、Ya-Wen Wang、Yu Peng

  DOI：10.1039/d0ob00376j

  日期：——

  Addition of DMA to 1,1′-diarylethylenes promoted by base has been developed, which results in a new synthetic strategy for (−)-sacidumlignan B.

  将DMA添加到1,1'-二芳基乙烯中，通过碱促进，已经被开发出来，这导致了(−)-sacidumlignan B的新合成策略。
• Triflimide-catalyzed allylsilane annulations of benzylic alcohols for the divergent synthesis of indanes and tetralins
  作者：Jordan C. T. Reddel、Weiwei Wang、Kalli Koukounas、Regan J. Thomson

  DOI：10.1039/c6sc04762a

  日期：——

  development of a triflimide-catalyzed annulation of benzylic alcohols with allylsilanes for the synthesis of indane or tetralin structures is reported. In this fragment coupling reaction, complexity is built rapidly from readily available starting materials to yield diverse sets of products with up to three contiguous stereocenters. Indanes or tetralins can be generated from common precursors depending

  据报道，用三氟甲酰亚胺催化的苄醇与烯丙基硅烷的环合反应可用于茚满或四氢化萘结构的合成。在这种片段偶联反应中，从容易获得的起始原料迅速建立了复杂性，以产生具有多达三个连续立体中心的多种产品。取决于所使用的烯丙基硅烷试剂的结构，茚满或四氢化萘可以从常见的前体中生成。几种木脂素天然产物的简洁合成突显了这种新设计方法的实用性。
• A Concise Synthesis of Sacidumlignan B
  作者：Zhiyuan Zhuang、Zhenbiao Luo、Sichen Yao、Yawen Wang、Yu Peng

  DOI：10.3390/molecules27185775

  日期：——

  A short synthesis of racemic Sacidumlignan B was achieved for the first time. The key steps included a formal reductive coupling between the diaryl ketone and the crotyl bromide, and the subsequent Friedel–Crafts cyclization, which led to an efficient construction of dihydronaphthalene skeleton in this 2,7′-cyclolignan natural product.

  首次实现了外消旋Sacidumlignan B的短合成。关键步骤包括二芳基酮和巴豆基溴之间的正式还原偶联，以及随后的 Friedel-Crafts 环化，这导致在这种 2,7'-环木脂素天然产物中有效构建二氢萘骨架。