1,1,1,4,4,4-hexafluoro-2,3-diphenyl-2,3-butanediol

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: 1,1,1,4,4,4-hexafluoro-2,3-diphenyl-2,3-butanediol
• 英文别名: (2R,3R)-1,1,1,4,4,4-hexafluoro-2,3-diphenylbutane-2,3-diol
• 化学式: C₁₆H₁₂F₆O₂
• 分子量: 350.26
• InChiKey: AJBYSHYIHCXTJQ-ZIAGYGMSSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  24
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  8

反应信息

• 作为产物：
  描述：

  在 四甲基氟化铵 作用下， 以 四氢呋喃 为溶剂， 反应 24.0h， 生成 1,1,1,4,4,4-hexafluoro-2,3-diphenyl-2,3-butanediol
  参考文献：
  名称：

  19F核磁共振波谱法，用于木质素中羰基的定量检测和分类。

  摘要：

  已经开发出一种允许定量检测和分类木质素中各种羰基的新方法。通过对一系列含羰基的木质素样模型化合物进行定量三氟甲基化，对提出的方法进行了优化。此工作之后是所得氟衍生物的（19）F NMR光谱分析，可全面了解其结构/（19）F化学位移关系。还通过在催化量的氟化四甲基铵（TMAF）存在下对它们进行三氟甲基化来研究木质素中存在的各种羰基，然后在四氢呋喃中用TMAF进行水解。通过使用各种选择性反应，有可能将许多突出的（19）F NMR信号分配给木质素中存在的各种羰基。

  DOI：

  10.1021/jf980431p

文献信息

• GaN nanowires as a reusable photoredox catalyst for radical coupling of carbonyl under blacklight irradiation
  作者：Mingxin Liu、Lida Tan、Roksana T. Rashid、Yunen Cen、Shaobo Cheng、Gianluigi Botton、Zetian Mi、Chao-Jun Li

  DOI：10.1039/d0sc02718a

  日期：——

  level and energy band as a readily isolable and recyclable heterogeneous photoredox catalyst for radical coupling reactions. Using the carbonyl coupling reaction as a proof-of-concept, herein, we report a photo-pinacol coupling reaction catalyzed by GaN nanowires under ambient light at room temperature with methanol as a solvent and sacrificial reagent. By simply tuning the dopant, the GaN nanowire shows

  长期以来，利用光能驱动所需的化学转化。自由基偶联反应中均相光氧化还原催化剂的开发确实是惊人的，但是具有明显的缺点，例如难以分离催化剂和经常需要稀有贵金属。因此，我们设想使用具有可调费米能级和能带的超稳定III-V光敏半导体作为自由基耦合反应的易于隔离和可回收的异质光氧化还原催化剂。在本文中，使用羰基偶联反应作为概念验证，我们报道了在室温下，环境光下，以甲醇为溶剂和牺牲试剂，GaN纳米线催化的光频哪醇偶联反应。通过简单地调整掺杂剂，GaN纳米线显示出​​显着增强的电子性能。该催化剂表现出优异的稳定性，可重复使用性和功能耐受性。所有反应都可以在Si晶圆上用单条纳米线完成。
• ¹⁹F Nuclear Magnetic Resonance Spectroscopy for the Elucidation of Carbonyl Groups in Lignins. 1. Model Compounds
  作者：Behzad C. Ahvazi、Dimitris S. Argyropoulos

  DOI：10.1021/jf960154r

  日期：1996.1.1

  A new method for the detection of different classes of carbonyl groups in a series of carbonyl-containing lignin-like model compounds has been developed. The method is based on the selective fluoride-induced trifluoromethylation of carbonyl groups with (trifluoromethyl)trimethylsilane (TMS-CF3) in the presence of tetramethylammonium fluoride (TMAF), followed by hydrolysis with aqueous HF or TMAF in the case of quinones. In this study a series of ketones, aldehydes, quinones, and dimeric-lignin model compounds were quantitatively trifluoromethylated followed by F-19 NMR spectral analyses of the resulting fluorine-containing derivatives, allowing for a thorough understanding of their structure/F-19 chemical shift relationships. These studies have shown that the F-19-NMR chemical shifts of the trifluoromethyl groups vary significantly and consistently for various classes of carbonyl groups which may be present in complex lignocellulosic materials. These studies are to form the basis for the development of a novel and sensitive method that can be used to obtain quantitative information on the various carbonyl groups present in such materials.
• SET and Exciplex Pathways in the Photochemical Reactions between Aromatic Ketones and Benzylsilane and Stannane Derivatives
  作者：Laura Cermenati、Mauro Freccero、Paolo Venturello、Angelo Albini

  DOI：10.1021/ja00135a003

  日期：1995.8

  The photochemical reaction of alpha,alpha,alpha-trifluoroacetophenone (TFA), benzophenone, and p-cyanoacetophenone with benzyltrimethylsilane in MeCN involves hydrogen transfer from the benzylic position. Desilylation occurs as a minor process only in the case of TFA (but it increases greatly in the presence of MeOH or LiClO4). The final products result from the statistical recombination of the benzyl and ketyl radicals. Further cases of intramolecular selectivity studied are p-methylbenzyl- and p-methoxybenzyltrimethylsilane (the latter substrate undergoes mainly C-Si bond cleavage in the reaction with TFA) as well as benzyltributylstannane (only destannylation observed with all ketones). Product studies are complemented by the determination of relevant kinetic parameters through steady-state and flash-photolysis experiments. The results are explained in terms of hydrogen transfer proceeding from an exciplex and desilylation from the solvent separated radial ion pair. The latter species predominates when Delta G(et) < -10 kcal mol(-1).
• ¹⁹F Nuclear Magnetic Resonance Spectroscopy for the Quantitative Detection and Classification of Carbonyl Groups in Lignins
  作者：Behzad C. Ahvazi、Claudia Crestini、Dimitris S. Argyropoulos

  DOI：10.1021/jf980431p

  日期：1999.1.1

  carbonyl groups present in lignins were also investigated by trifluoromethylating them in the presence of catalytic amounts of tetramethylammonium fluoride (TMAF), followed by hydrolysis with TMAF in tetrahydrofuran. By using a variety of selective reactions, it became possible to assign a number of prominent (19)F NMR signals to a variety of carbonyl groups present in lignins. These studies demonstrated

  已经开发出一种允许定量检测和分类木质素中各种羰基的新方法。通过对一系列含羰基的木质素样模型化合物进行定量三氟甲基化，对提出的方法进行了优化。此工作之后是所得氟衍生物的（19）F NMR光谱分析，可全面了解其结构/（19）F化学位移关系。还通过在催化量的氟化四甲基铵（TMAF）存在下对它们进行三氟甲基化来研究木质素中存在的各种羰基，然后在四氢呋喃中用TMAF进行水解。通过使用各种选择性反应，有可能将许多突出的（19）F NMR信号分配给木质素中存在的各种羰基。