2-(difluoromethyl)-1,4-dimethylbenzene

• 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: 2-(difluoromethyl)-1,4-dimethylbenzene
• 化学式: C₉H₁₀F₂
• 分子量: 156.175
• InChiKey: UYOVRXNZPFORLB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  对二甲苯 在 copper(l) iodide 、 碘 、 间氯过氧苯甲酸 作用下， 以 二氯甲烷 、 乙腈 为溶剂， 反应 1.5h， 生成 2-(difluoromethyl)-1,4-dimethylbenzene
  参考文献：
  名称：

  Well-Defined, Shelf-Stable (NHC)Ag(CF₂H) Complexes for Difluoromethylation

  摘要：

  The preparation of the thermally stable, well-defined NHC-ligated difluoromethylated silver complexes la,b is described. The complexes were fully characterized, and the structural assignments were ambiguously further confirmed by single-crystal X-ray diffraction. Reactions of [(SIPr)Ag(CF2H)] with a variety of activated electrophiles such as diaryliodonium salts, vinyl(aryl)iodonium salts, aryldiazonium salts, and acid chlorides in the presence or absence of CuI occurred smoothly at room temperature to generate difluoromethylated compounds in good to excellent yields.

  DOI：

  10.1021/acs.organomet.5b00350

文献信息

• 5,6-BISARYL-2-PYRIDINE-CARBOXAMIDE DERIVATIVES, PREPARATION AND APPLICATION THEREOF IN THERAPEUTICS AS UROTENSIN II RECEPTOR ANTAGONISTS
  申请人：Altenburger Jean-Michel

  公开号：US20090318473A1

  公开（公告）日：2009-12-24

  The present invention relates to derivatives of 5,6-bisaryl-2-pyridine-carboxamide, their preparation and their application in therapeutics as antagonists of urotensin II receptors.

  本发明涉及5,6-双芳基-2-吡啶甲酰胺衍生物，其制备以及其作为尿苷Ⅱ受体拮抗剂在治疗学中的应用。
• Access to Difluoromethylated Arenes by Pd-Catalyzed Reaction of Arylboronic Acids with Bromodifluoroacetate
  作者：Zhang Feng、Qiao-Qiao Min、Xingang Zhang

  DOI：10.1021/acs.orglett.5b03206

  日期：2016.1.4

  of aryl boronic acids with bromodifluoroacetate is described. The reaction proceeds under mild reaction conditions with hydroquinone and Fe(acac)3 as additives. Preliminary mechanistic studies reveal that a difluorocarbene pathway is involved in the reaction, which is unusual compared to the most traditional approaches. This reaction has advantages of high efficiency and excellent functional group compatibility

  描述了用溴代二氟乙酸酯进行钯催化的芳基硼酸二氟甲基化的前所未有的例子。反应在温和的反应条件下以对苯二酚和Fe（acac）3为添加剂进行。初步的机理研究表明，该反应涉及二氟卡宾途径，与大多数传统方法相比，这是不寻常的。该反应具有高效和优异的官能团相容性（甚至对溴化物和羟基而言）的优点，因此为药物发现和开发提供了有用的方案。
• Chlorodifluoromethane-triggered formation of difluoromethylated arenes catalysed by palladium
  作者：Zhang Feng、Qiao-Qiao Min、Xia-Ping Fu、Lun An、Xingang Zhang

  DOI：10.1038/nchem.2746

  日期：2017.9

  represents the ideal and most straightforward difluoromethylating reagent, but introduction of the difluoromethyl group (CF2H) from ClCF2H into aromatics has not been reported. Here, we describe a direct palladium-catalysed difluoromethylation method for coupling ClCF2H with arylboronic acids and esters to generate difluoromethylated arenes with high efficiency. The reaction exhibits a remarkably broad substrate

  二氟甲基化的芳族化合物在制药，农用化学品和材料中的重要性日益增加。氯二氟甲烷（ClCF 2 H）是一种廉价，丰富且广泛使用的工业原料，是理想且最直接的二氟甲基化试剂，但尚未见到将ClCF 2 H中的二氟甲基（CF 2 H）引入芳族化合物的报道。在这里，我们描述了偶联ClCF 2的直接钯催化的二氟甲基化方法H与芳基硼酸和酯生成高效二氟甲基化的芳烃。该反应表现出非常广泛的底物范围，包括杂芳基硼酸，并且被用于一系列药物和生物活性化合物的二氟甲基化。初步的机理研究表明，该反应涉及钯二氟卡宾中间体。尽管已经制备了许多金属-二氟卡宾配合物，但涉及金属-二氟卡宾配合物的二氟甲基化或二氟甲基化化合物的催化合成并未受到太大关注。因此，这一新反应也为理解金属-二氟卡宾络合物催化的反应打开了大门。
• PHTHALAZINONE AND RELATED ANALOGS AS SIRTUIN MODULATORS
  申请人：Vu Chi B.

  公开号：US20130190309A1

  公开（公告）日：2013-07-25

  Provided herein are novel sirtuin-modulating compounds and methods of use thereof. The sirtuin-modulating compounds may be used for increasing the lifespan of a cell, and treating and/or preventing a wide variety of diseases and disorders including, for example, diseases or disorders related to aging or stress, diabetes, obesity, neurodegenerative diseases, cardiovascular disease, blood clotting disorders, inflammation, cancer, and/or flushing as well as diseases or disorders that would benefit from increased mitochondrial activity. Also provided are compositions comprising a sirtuin-modulating compound in combination with another therapeutic agent.

  本文提供了新颖的调节sirtuin的化合物及其使用方法。这些调节sirtuin的化合物可用于延长细胞的寿命，并治疗和/或预防各种疾病和疾病，包括与衰老或压力、糖尿病、肥胖、神经退行性疾病、心血管疾病、血液凝块疾病、炎症、癌症、潮红以及那些会受益于增加线粒体活性的疾病或疾病。还提供了包含sirtuin调节化合物与另一种治疗剂结合的组合物。
• LIQUID CRYSTAL COMPOUND HAVING BENZOPYRAN SKELETON, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：JNC CORPORATION

  公开号：US20180022998A1

  公开（公告）日：2018-01-25

  Shown are a liquid crystal compound satisfying at least one of physical properties such as high stability to heat and light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and satisfactory compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. A compound is represented by formula (1), a liquid crystal composition contains the compound, or the like.

  所示的是一种液晶化合物，满足至少一种物理性质，如对热和光的高稳定性，高清晰点（或高最高温度），液晶相的低最低温度，小粘度，适当的光学各向异性，大负介电各向异性，适当的弹性常数以及与其他液晶化合物的良好兼容性，包含该化合物的液晶组合物以及包括该组合物的液晶显示装置。一种化合物由式（1）表示，液晶组合物含有该化合物，或类似的。