(4R,4'R)-2,2'-(propane-2,2-diyl)bis(4-(naphthalen-2-ylmethyl)-4,5-dihydrooxazole) | 1487443-03-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: (4R,4'R)-2,2'-(propane-2,2-diyl)bis(4-(naphthalen-2-ylmethyl)-4,5-dihydrooxazole)
• 英文别名: (4R)-4-(naphthalen-2-ylmethyl)-2-[2-[(4R)-4-(naphthalen-2-ylmethyl)-4,5-dihydro-1,3-oxazol-2-yl]propan-2-yl]-4,5-dihydro-1,3-oxazole
• CAS: 1487443-03-7
• 化学式: C₃₁H₃₀N₂O₂
• 分子量: 462.591
• InChiKey: LFBRRXQHRLTWFZ-VSGBNLITSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.9
• 重原子数：
  35
• 可旋转键数：
  6
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  43.2
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  D-3-(2-萘基)-丙氨酸 在 lithium aluminium tetrahydride 、 zinc trifluoromethanesulfonate 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 18.0h， 生成 (4R,4'R)-2,2'-(propane-2,2-diyl)bis(4-(naphthalen-2-ylmethyl)-4,5-dihydrooxazole)
  参考文献：
  名称：

  Lewis Acid Catalysed Asymmetric One-Carbon Ring-Expansion of Prochiral Cyclobutanones

  摘要：

  摘要：本文描述了手性β-取代环戊酮的亲核亚甲基插入反应，提供了在合成和天然产物中作为重要结构基元的手性β-取代环戊烯酮的访问途径。商业上可获得的三甲基硅基以及其他硅基重氮甲烷作为一碳合成物，而三氟甲基硫酸钪则被发现是一种有效的路易斯酸催化剂。通过使用双噁唑啉配体，实现了对许多β-取代环戊烯酮的对映诱导，包括带有全碳季节立体中心的例子。

  DOI：

  10.1055/s-0042-1751386

文献信息

• (4+3) Annulation of Donor‐Acceptor Cyclopropanes and Azadienes: Highly Stereoselective Synthesis of Azepanones
  作者：Stefano Nicolai、Jérôme Waser

  DOI：10.1002/anie.202209006

  日期：2022.9.5

  Azepanones are important and widespread seven-membered heterocycles, but their synthesis is challenging. A convergent method to access these scaffolds was developed relying on a (4+3) annulation reaction of azadienes and donor-acceptor cyclopropanes. Good to excellent yields and high diastereoselectivity were achieved using Yb(OTf)3 as the catalyst. Asymmetric induction was possible with Cu(OTf)2 in

  氮杂环庚酮是重要且广泛的七元杂环化合物，但其合成具有挑战性。依赖于氮杂二烯和供体-受体环丙烷的(4+3)环化反应开发了一种接近这些支架的收敛方法。使用Yb(OTf) 3作为催化剂实现了良好至优异的产率和高非对映选择性。在三恶唑啉 (Tox) 配体存在下，可以使用 Cu(OTf) 2进行不对称诱导。
• Electronic effects of aryl-substituted bis(oxazoline) ligands on the outcome of asymmetric copper-catalysed C–H insertion and aromatic addition reactions
  作者：Catherine N. Slattery、Sarah O’Keeffe、Anita R. Maguire

  DOI：10.1016/j.tetasy.2013.09.009

  日期：2013.10

  The effect of the modification of bis(oxazoline) ligands on the outcome of copper-catalysed C-H insertion and aromatic addition reactions is described. In general, these reactions display minimum sensitivity in terms of enantiocontrol to variation of the electronic properties of the aryl moiety of the ligand however, some influence is observed for C-H insertions employing naphthyl-substituted bis(oxazolines) and for aromatic addition reactions of biphenyl diazo ketone substrates. The synthesis of the modified bis(oxazolines), which include four novel structures, is also described. (C) 2013 Elsevier Ltd. All rights reserved.
• Lewis Acid Catalysed Asymmetric One-Carbon Ring-Expansion of Prochiral Cyclobutanones
  作者：Johannes M. Wahl、Marius Tenberge

  DOI：10.1055/s-0042-1751386

  日期：2023.3

  Enantioselective methylene insertion into prochiral cyclobutanones is described providing access to chiral β-substituted cyclopentanones as important structural motif in synthesis and natural products. Commercially available trimethylsilyl as well as other silyl diazomethanes act as one-carbon synthon and scandium triflate is found to be a potent Lewis acid catalyst. By using bis(oxazoline) ligands, enantioinduction is achieved for a number of β-substituted cyclopentanones including examples bearing all-carbon quaternary stereocentres.

  摘要：本文描述了手性β-取代环戊酮的亲核亚甲基插入反应，提供了在合成和天然产物中作为重要结构基元的手性β-取代环戊烯酮的访问途径。商业上可获得的三甲基硅基以及其他硅基重氮甲烷作为一碳合成物，而三氟甲基硫酸钪则被发现是一种有效的路易斯酸催化剂。通过使用双噁唑啉配体，实现了对许多β-取代环戊烯酮的对映诱导，包括带有全碳季节立体中心的例子。