2,2,5,5-Tetramethylhexanol | 55073-86-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 2,2,5,5-Tetramethylhexanol
• 英文别名: 2,2,5,5-tetramethylhexan-1-ol
• CAS: 55073-86-4
• 化学式: C₁₀H₂₂O
• 分子量: 158.28
• InChiKey: HPBXDLRRJJHQRJ-UHFFFAOYSA-N

物化性质

• 熔点：
  50-51 °C
• 沸点：
  168.0±0.0 °C(Predicted)
• 密度：
  0.826±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  11
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  乙酸酐 、 2,2,5,5-Tetramethylhexanol 在 N-甲基咪唑 作用下， 以 二氯甲烷 为溶剂， 以23 mg的产率得到
  参考文献：
  名称：

  10.1002/anie.202402858

  摘要：

  AbstractThe tert‐butyl group is a common aliphatic motif extensively employed to implement steric congestion and conformational rigidity in organic and organometallic molecules. Because of the combination of a high bond dissociation energy (~100 kcal mol−1) and limited accessibility, in the absence of directing groups, neither radical nor organometallic approaches are effective for the chemical modification of tert‐butyl C−H bonds. Herein we overcome these limits by employing a highly electrophilic manganese catalyst, [Mn(CF3bpeb)(OTf)2], that operates in the strong hydrogen bond donor solvent nonafluoro‐tert‐butyl alcohol (NFTBA) and catalytically activates hydrogen peroxide to generate a powerful manganese‐oxo species that effectively oxidizes tert‐butyl C−H bonds. Leveraging on the interplay of steric, electronic, medium and torsional effects, site‐selective and product chemoselective hydroxylation of the tert‐butyl group is accomplished with broad reaction scope, delivering primary alcohols as largely dominant products in preparative yields. Late‐stage hydroxylation at tert‐butyl sites is demonstrated on 6 densely functionalized molecules of pharmaceutical interest. This work uncovers a novel disconnection approach, harnessing tert‐butyl as a potential functional group in strategic synthetic planning for complex molecular architectures.

  DOI：

  10.1002/anie.202402858
• 作为产物：
  描述：

  3,3-二甲基-1-溴丁烷 [1647-23-0] 在 双氧水 、 C₄₆H₄₀F₁₈MnN₆O₆S₂ 、 尿素 、 copper(l) chloride 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 生成 2,2,5,5-Tetramethylhexanol
  参考文献：
  名称：

  10.1002/anie.202402858

  摘要：

  AbstractThe tert‐butyl group is a common aliphatic motif extensively employed to implement steric congestion and conformational rigidity in organic and organometallic molecules. Because of the combination of a high bond dissociation energy (~100 kcal mol−1) and limited accessibility, in the absence of directing groups, neither radical nor organometallic approaches are effective for the chemical modification of tert‐butyl C−H bonds. Herein we overcome these limits by employing a highly electrophilic manganese catalyst, [Mn(CF3bpeb)(OTf)2], that operates in the strong hydrogen bond donor solvent nonafluoro‐tert‐butyl alcohol (NFTBA) and catalytically activates hydrogen peroxide to generate a powerful manganese‐oxo species that effectively oxidizes tert‐butyl C−H bonds. Leveraging on the interplay of steric, electronic, medium and torsional effects, site‐selective and product chemoselective hydroxylation of the tert‐butyl group is accomplished with broad reaction scope, delivering primary alcohols as largely dominant products in preparative yields. Late‐stage hydroxylation at tert‐butyl sites is demonstrated on 6 densely functionalized molecules of pharmaceutical interest. This work uncovers a novel disconnection approach, harnessing tert‐butyl as a potential functional group in strategic synthetic planning for complex molecular architectures.

  DOI：

  10.1002/anie.202402858

文献信息

• NOVEL CYCLOSPORIN DERIVATIVES AND USES THEREOF
  申请人：S&T Global Inc.

  公开号：US20130210704A1

  公开（公告）日：2013-08-15

  The present invention relates to a compound of the Formula (I)): or pharmaceutically acceptable salt thereof, wherein the symbols are as defined in the specification; a pharmaceutical composition comprising the same, a method for treating or preventing viral infections, inflammation, dry eye, central nervous disorders, cardiovascular diseases, cancer, obesity, diabetes, muscular dystrophy, and hair loss.

  本发明涉及公式(I)的化合物或其药学上可接受的盐，其中符号如规范中所定义；以及包含该化合物的制药组合物，用于治疗或预防病毒感染、炎症、干眼症、中枢神经系统疾病、心血管疾病、癌症、肥胖症、糖尿病、肌肉营养不良和脱发的方法。
• Cyclosporin derivatives and uses thereof
  申请人：S&T Global Inc.

  公开号：US10647747B2

  公开（公告）日：2020-05-12

  The present invention relates to a compound of the Formula (I)): or pharmaceutically acceptable salt thereof, wherein the symbols are as defined in the specification; a pharmaceutical composition comprising the same, a method for treating or preventing viral infections, inflammation, dry eye, central nervous disorders, cardiovascular diseases, cancer, obesity, diabetes, muscular dystrophy, and hair loss.

  本发明涉及一种式 (I)) 的化合物： 或其药学上可接受的盐，其中符号如说明书中所定义；包含该化合物的药物组合物；治疗或预防病毒感染、炎症、干眼症、中枢神经紊乱、心血管疾病、癌症、肥胖症、糖尿病、肌肉萎缩症和脱发的方法。
• US9890198B2
  申请人：——

  公开号：US9890198B2

  公开（公告）日：2018-02-13
• 10.1002/anie.202402858
  作者：Chan, Siu-Chung、Palone, Andrea、Bietti, Massimo、Costas, Miquel

  DOI：10.1002/anie.202402858

  日期：——

  AbstractThe tert‐butyl group is a common aliphatic motif extensively employed to implement steric congestion and conformational rigidity in organic and organometallic molecules. Because of the combination of a high bond dissociation energy (~100 kcal mol−1) and limited accessibility, in the absence of directing groups, neither radical nor organometallic approaches are effective for the chemical modification of tert‐butyl C−H bonds. Herein we overcome these limits by employing a highly electrophilic manganese catalyst, [Mn(CF3bpeb)(OTf)2], that operates in the strong hydrogen bond donor solvent nonafluoro‐tert‐butyl alcohol (NFTBA) and catalytically activates hydrogen peroxide to generate a powerful manganese‐oxo species that effectively oxidizes tert‐butyl C−H bonds. Leveraging on the interplay of steric, electronic, medium and torsional effects, site‐selective and product chemoselective hydroxylation of the tert‐butyl group is accomplished with broad reaction scope, delivering primary alcohols as largely dominant products in preparative yields. Late‐stage hydroxylation at tert‐butyl sites is demonstrated on 6 densely functionalized molecules of pharmaceutical interest. This work uncovers a novel disconnection approach, harnessing tert‐butyl as a potential functional group in strategic synthetic planning for complex molecular architectures.