5,5'-(1E,1'E)-(1R,2R)-cyclohexane-1,2-diylbis(azan-1-yl-1-ylidene)bis(methan-1-yl-1-ylidene)bis(3-tert-butylbiphenyl-4-ol) | 1092119-25-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 5,5'-(1E,1'E)-(1R,2R)-cyclohexane-1,2-diylbis(azan-1-yl-1-ylidene)bis(methan-1-yl-1-ylidene)bis(3-tert-butylbiphenyl-4-ol)
• CAS: 1092119-25-9
• 化学式: C₄₀H₄₆N₂O₂
• 分子量: 586.817
• InChiKey: FUWCPPZPMOGTMK-RUMICSQKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  9.88
• 重原子数：
  44.0
• 可旋转键数：
  6.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  65.18
• 氢给体数：
  2.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  5-phenyl-3-tert-butyl-2-hydroxybenzaldehyde 、 (1R,2R)-1,2-diaminocyclohexane 以 四氢呋喃 为溶剂， 反应 1.0h， 以86%的产率得到5,5'-(1E,1'E)-(1R,2R)-cyclohexane-1,2-diylbis(azan-1-yl-1-ylidene)bis(methan-1-yl-1-ylidene)bis(3-tert-butylbiphenyl-4-ol)
  参考文献：
  名称：

  Self-Assembled Dinuclear Cobalt(II)-Salen Catalyst Through Hydrogen-Bonding and Its Application to Enantioselective Nitro-Aldol (Henry) Reaction

  摘要：

  Novel chiral dinuclear Co(II)-salen catalysts self-assembled through the pyridone/aminopyridine hydrogen-bonding pair have been developed. The self-assembled dinuclear Co(II)-Salen catalyst results in significant rate acceleration (48 times faster rate) as well, as excellent enantioselectivity (96% ee vs 55% ee) in a nitro-aldol reaction, compared to the corresponding monomeric catalyst. A bimetallic mechanism is suggested by the kinetic experiment showing that the rate taw is second order in [catalyst]. The self-assembly through hydrogen bonding was confirmed by X-ray structure and by the H-1 experiments revealing that the dimerization constant of the novel hydrogen-bonding capable salen (ligand in 25% v/v CD3NO2/CDCl3 is 53 +/- 21 M-1. This result proves the validity of self-assembly based approaches toward the efficient construction of chiral bimetallic catalyst system.

  DOI：

  10.1021/ja807221s

文献信息

• One-Electron Oxidation of Electronically Diverse Manganese(III) and Nickel(II) Salen Complexes: Transition from Localized to Delocalized Mixed-Valence Ligand Radicals
  作者：Takuya Kurahashi、Hiroshi Fujii

  DOI：10.1021/ja2016813

  日期：2011.6.1

  Ligand radicals from salen complexes are unique mixed-valence compounds in which a phenoxyl radical is electronically linked to a remote phenolate via a neighboring redox-active metal ion, providing an opportunity to study electron transfer from a phenolate to a phenoxyl radical mediated by a redox-active metal ion as a bridge. We herein synthesize one-electron-oxidized products from electronically

  来自salen配合物的配体自由基是独特的混合价化合物，其中苯氧基自由基通过相邻的氧化还原活性金属离子与远程酚盐电子连接，为研究从酚盐到由氧化还原介导的苯氧基自由基的电子转移提供了机会- 活性金属离子作为桥梁。我们在此从电子多样化的锰 (III) salen 络合物合成单电子氧化产物，其中氧化位点以配体为中心，而不是以金属为中心，提供锰 (III)-苯氧基自由基物种。本研究的关键点是通过使用非对称 salen 配合物明确分配间隔电荷转移带，这使我们能够获得对混合价属性的其他无法访问的见解。d(4) 高自旋锰 (III) 离子形成 Robin-Day II 类混合价系统，其中电子转移发生在局部苯氧基自由基和酚盐之间。这与具有相同 salen 配体的 ad(8) 低自旋镍 (II) 离子形成鲜明对比，后者在两个酚盐环上诱导离域自由基（Robin-Day III 级），正如其他人先前报道的那样。目
• Salen Promoted Enantioselective Nazarov Cyclizations of Activated and Unactivated Dienones
  作者：Gerri E. Hutson、Yunus E. Türkmen、Viresh H. Rawal

  DOI：10.1021/ja401908m

  日期：2013.4.3

  A novel class of chiral 5,5'-di(2,4,6-trialkyl)-aryl salen-metal complexes have been developed and shown to catalyze highly enantioselective Nazarov cyclization reactions, giving rise to cyclopentenoids in 90:10-98:2 er. Significantly, the catalysts also promote, for the first time, highly enantioselective Nazarov reactions of "unactivated" dienones, producing hydrindenone products having in place three contiguous chiral centers.