2,5-difluoro-4'-methyl-1,1'-biphenyl

• 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: 2,5-difluoro-4'-methyl-1,1'-biphenyl
• 英文别名: 2,5-difluoro-4'-methyl-biphenyl；2,5-difluoro-4'-methylbiphenyl；1,4-Difluoro-2-(4-methylphenyl)benzene
• 化学式: C₁₃H₁₀F₂
• 分子量: 204.219
• InChiKey: JVGREGZBCGKANN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2,5-difluoro-4'-methyl-1,1'-biphenyl 在 N-溴代丁二酰亚胺(NBS) 作用下， 以 四氯化碳 为溶剂， 反应 20.0h， 生成 2-[4-(Bromomethyl)phenyl]-1,4-difluorobenzene
  参考文献：
  名称：

  Fluorinated Benzyloxyphenyl Piperidine-4-carboxamides with Dual Function against Thrombosis: Inhibitors of Factor Xa and Platelet Aggregation

  摘要：

  A series of benzyloxy anilides of nipecotic (5, 6) and isonipecotic (7, 8) acids were synthesized and assayed in vitro as inhibitors of ADP-induced platelet aggregation and the blood coagulation enzymes factor Xa (FXa) and thrombin (FIIa). An exploration of effects of the amidine group attached at the piperidine nitrogen,position and substitution (F, phenyl) of the benzyloxy group, and addition of fluorine/s on the second (distal) phenyl ring, led us to single out some promising isonipecotamide derivatives 7. Addition of meta-F and para-CF3 on the distal phenyl ring resulted in a 6-to-18-fold enhancement of the FXa potency and in 2-to-4-fold increase of the antiplatelet potency, the last depending to a large extent upon lipophilicity. Two congeners of N-{[3-(1,1'-biphenyl-4-yl)methoxy]phenyl}piperidine-4-carboxamide (7m and 7p) proved to be potent FXa-selective inhibitors (K-i = 130 and 57 nM, respectively) and antiplatelet agents and were identified as leads for developing new dual function antithrombotic drugs.

  DOI：

  10.1021/jm801141f
• 作为产物：
  描述：

  4-碘甲苯 、 1,4-二氟苯 在 potassium tert-butylate 、 L-脯氨酸 作用下， 以 苯 为溶剂， 反应 24.0h， 以41.6 mg的产率得到2,5-difluoro-4'-methyl-1,1'-biphenyl
  参考文献：
  名称：

  脯氨酸催化未活化芳烃的直接C–H芳基化

  摘要：

  测试了几种氨基酸以催化未活化的苯衍生物的无过渡金属的直接CH芳基化反应。其中，脯氨酸被发现是芳基卤化物与未活化芳烃之间交叉偶联的极佳催化剂。根据一些实验，该反应大概涉及芳基自由基阴离子作为中间体。使用该催化剂体系的反应为建立对联芳基的环境友好和成本有效的途径提供了一种选择。

  DOI：

  10.1021/jo3008594

文献信息

• Assessment and use of two silicon carbide multi-well plates for library synthesis and proteolytic digests using microwave heating
  作者：Lauren M. Stencel、Chad M. Kormos、Keri B. Avery、Nicholas E. Leadbeater

  DOI：10.1039/b902112d

  日期：——

  The use of two silicon carbide plates is reported for the preparation of three libraries of organic molecules using microwave heating. In addition, a preliminary study has been carried out, showing that one of the plates can also be used in a proteomics setting. Both the 24-position and 48-position plates heated evenly when irradiated with microwave energy. The 48-position plate was used to prepare a library of N-aryl functionalized β-amino esters via an aza-Michael reaction between anilines and Michael acceptors. The 24-position plate was used to prepare a library of biaryls via a Suzuki coupling methodology and a library of 1,4-dihydropyridines via a Hantzsch synthesis. The 48-position plate was also used to perform the proteolytic digestion of insulin chain B by trypsin.

  报道了使用两个碳化硅板通过微波加热制备三种有机分子库的方法。此外，还进行了初步研究，表明其中一个板材也可用于蛋白质组学环境。两个板材在微波辐射下均能均匀加热，即24位板和48位板。48位板被用于通过苯胺与迈克尔受体之间的氮迈克尔反应制备N-芳基功能化的β-氨基酯库。24位板被用于通过铃木偶联方法制备联苯库，以及通过汉奇合成制备1,4-二氢吡啶库。48位板还用于通过胰蛋白酶对胰岛素B链进行蛋白水解消化。
• A General Method for Copper-Catalyzed Arylation of Arene C−H Bonds
  作者：Hien-Quang Do、Rana M. Kashif Khan、Olafs Daugulis

  DOI：10.1021/ja805688p

  日期：2008.11.12

  A general method for copper-catalyzed arylation of sp (2) C-H bonds with p K a's below 35 has been developed. The method employs aryl halide as the coupling partner, lithium alkoxide or K 3PO 4 base, and DMF, DMPU, or mixed DMF/xylenes solvent. A variety of electron-rich and electron-poor heterocycles such as azoles, caffeine, thiophenes, benzofuran, pyridine oxides, pyridazine, and pyrimidine can

  已经开发出一种铜催化 pKa 低于 35 的 sp (2) CH 键芳基化的通用方法。该方法采用芳基卤作为偶联配偶体、锂醇盐或K 3PO 4 碱以及DMF、DMPU或混合DMF/二甲苯溶剂。多种富电子和缺电子杂环，例如唑类、咖啡因、噻吩、苯并呋喃、氧化吡啶、哒嗪和嘧啶可以芳基化。此外，在苯环上具有至少两个吸电子基团的贫电子芳烃也可以被芳基化。独立合成了两种芳基铜-菲咯啉络合物中间体。
• Pd-Catalyzed intermolecular C–H bond arylation reactions: effect of bulkiness of carboxylate ligands
  作者：Yutaka Tanji、Ryo Hamaguchi、Yasushi Tsuji、Tetsuaki Fujihara

  DOI：10.1039/d0cc01129k

  日期：——

  A bulky carboxylic acid bearing one 1-adamantylmethyl and two methyl substituents at the α-position is demonstrated to work as an efficient carboxylate ligand source in Pd-catalyzed intermolecular C(sp²)–H bond arylation reactions.

  一个体积庞大的羧酸，在α位上带有一个1-金刚烷甲基和两个甲基取代基，被证明可以作为Pd催化的分子间C(sp2)-H键芳基化反应中高效的羧酸配体来源。
• COPPER-CATALYZED C-H BOND ARYLATION
  申请人：Daugulis Olafs

  公开号：US20090076266A1

  公开（公告）日：2009-03-19

  The present invention is a one-step method for efficiently converting carbon-hydrogen bonds into carbon-carbon bonds using a combination of aryl halides, a substrate, and a copper salt as catalyst. This method allows faster introduction of complex molecular entities, a process that would otherwise require many more steps. This invention is particularly relevant for the organic synthesis of complex molecules such as, but not limited to, pharmacophores and explosives.

  本发明是一种一步法，通过使用芳基卤化物、底物和铜盐作为催化剂，高效地将碳氢键转化为碳碳键的方法。该方法允许更快地引入复杂的分子实体，否则这个过程需要更多步骤。该发明特别适用于有机合成中复杂分子的合成，例如药用分子和爆炸物等。
• [EN] ENANTIOMERS OF SUBSTITUTED THIAZOLES AS ANTIVIRAL COMPOUNDS<br/>[FR] ÉNANTIOMÈRES DE THIAZOLES SUBSTITUÉS UTILISÉS COMME COMPOSÉS ANTIVIRAUX
  申请人：INNOVATIVE MOLECULES GMBH

  公开号：WO2019068817A1

  公开（公告）日：2019-04-11

  The present invention relates to novel antiviral compounds with specific stereoconfiguration, especially to specific novel enantiomers, to a process for their preparation and to their use as medicaments, in particular as antiviral medicaments.

  本发明涉及具有特定立体构型的新型抗病毒化合物，特别是特定的新对映体，以及它们的制备方法和用作药物的用途，特别是用作抗病毒药物。