3-fluorobenzenediazonium tetrafluoroborate | 1996-38-9

• 英文名称: 3-fluorobenzenediazonium tetrafluoroborate
• 英文别名: 3-fluorophenyldiazonium tetrafluoroborate；3-Fluor-benzoldiazonium-fluorborat
• CAS: 1996-38-9
• 化学式: BF₄*C₆H₄FN₂
• 分子量: 209.914
• InChiKey: MYRWOMKYOWTOHB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  3-fluorobenzenediazonium tetrafluoroborate 在 sodiumsulfide nonahydrate 作用下， 以 水 为溶剂， 反应 0.25h， 以72%的产率得到bis(3-fluorophenyl) sulfide
  参考文献：
  名称：

  对称和不对称硫化物的合成及纳米钯催化的化学选择氧化

  摘要：

  已经开发出一种高度化学选择性，高效和纳米钯催化的方案，分别通过使用H 2 O 2作为氧化剂，通过对称和不对称硫化物的氧化来快速构建亚砜和砜。起始材料的可用性，催化剂的易于回收和再利用，广泛的底物范围以及高收率使得该方案成为有吸引力的替代方案。该方法还涉及无金属和微波促进的对称的二芳基硫醚的合成，以及FeCl 3介导的芳族重氮四氟硼酸盐与Na 2 S·9H 2的反应制备对称的二芳基二硫化物。O作为硫源。另外，经由K 2 CO 3介导的四氟硼酸壬二唑鎓与对称的二硫化物的反应产生了不对称的硫化物。

  DOI：

  10.1039/c8ob03209b
• 作为产物：
  描述：

  在 亚硝酸特丁酯 作用下， 以 四氢呋喃 为溶剂， 生成 3-fluorobenzenediazonium tetrafluoroborate
  参考文献：
  名称：

  Discovery and structure-activity relationship studies of 1-aryl-1H-naphtho[2,3-d][1,2,3]triazole-4,9-dione derivatives as potent dual inhibitors of indoleamine 2,3-dioxygenase 1 (IDO1) and trytophan 2,3-dioxygenase (TDO)

  摘要：

  Indoleamine 2,3-dioxygenase 1 (IDO1) and tryptophan 2,3-dioxygenase (TDO), which mediate kynurenine pathway of tryptophan degradation, have emerged as potential new targets in immunotherapy for treatment of cancer because of their critical role in immunosuppression in the tumor microenvironment. In this investigation, we report the structural optimization and structure-activity relationship studies of 1-phenyl-1H-naphtho[2,3-d][1,2,3]triazole-4,9-dione derivatives as a new class of IDO1/TDO dual inhibitors. Among all the obtained dual inhibitors, 1-(3-chloro-4-fluorophenyl)-6-fluoro-1H-naphtho[2,3-d][1,2,3]triazole-4,9-dione (38) displayed the most potent IDO1 and TDO inhibitory activities with IC₅₀ (half-maximal inhibitory concentration) values of 5 nM for IDO1 and 4 nM for TDO. It turned out that compound 38 was not a PAINS compound. Compound 38 could efficiently inhibit the biofunction of IDO1 and TDO in intact cells. In LL2 (Lewis lung cancer) and Hepa1-6 (hepatic carcinoma) allograft mouse models, this compound also showed considerable in vivo anti-tumor activity and no obvious toxicity was observed. Therefore, 38 could be a good lead compound for cancer immunotherapy and deserving further investigation.

  DOI：

  10.1016/j.ejmech.2020.112703

文献信息

• Aqueous and Visible-Light-Promoted C–H (Hetero)arylation of Uracil Derivatives with Diazoniums
  作者：An-Di Liu、Zhao-Li Wang、Li Liu、Liang Cheng

  DOI：10.1021/acs.joc.1c01799

  日期：2021.12.3

  Direct C5 (hetero)arylation of uracil and uridine substrates with (hetero)aryl diazonium salts under photoredox catalysis with blue light was reported. The coupling proceeds efficiently with diazonium salts and heterocycles in good functional group tolerance at room temperature in aqueous solution without transition-metal components. A plausible radical mechanism has been proposed.

  报道了在蓝光光氧化还原催化下，用（杂）芳基重氮盐对尿嘧啶和尿苷底物进行直接 C5（杂）芳基化。在室温下，在不含过渡金属组分的水溶液中，与具有良好官能团耐受性的重氮盐和杂环化合物有效地进行偶联。已经提出了一种似是而非的激进机制。
• Modular and Selective Arylation of Aryl Germanes (C−GeEt ₃ ) over C−Bpin, C−SiR ₃ and Halogens Enabled by Light‐Activated Gold Catalysis
  作者：Grant J. Sherborne、Avetik G. Gevondian、Ignacio Funes‐Ardoiz、Amit Dahiya、Christoph Fricke、Franziska Schoenebeck

  DOI：10.1002/anie.202005066

  日期：2020.9

  rapid and programmable construction of bi‐ or multiaryls. To this end, the next frontier of synthetic modularity will likely arise from harnessing the coupling space that is orthogonal to the powerful Pd‐catalyzed coupling regime. This report details the realization of this concept and presents the fully selective arylation of aryl germanes (which are inert under Pd0/PdII catalysis) in the presence of

  选择性 C -C偶联是快速、可编程构建双芳基或多芳基的强大策略。为此，合成模块化的下一个前沿可能会产生于利用与强大的 Pd 催化耦合机制正交的耦合空间。该报告详细介绍了这一概念的实现，并提出了在有价值的官能团 C−BPin、C−SiMe 3、C−I、C存在下，芳基锗烷（在 Pd 0 /Pd II催化下呈惰性）的完全选择性芳基化−Br、C−Cl，这反过来又提供了多样化的多样化机会。该方案利用可见光激活与金催化相结合，促进 C−Ge 与芳基重氮盐的选择性偶联。与之前专门针对Ar-N 2 +范围的光/金催化的 Ar-N 2 +偶联相反，我们提出了有效偶联富电子、缺电子、杂环和位阻芳基重氮盐的条件。我们的计算数据表明，虽然缺电子的 Ar-N 2 +盐在蓝光照射下很容易被金激活，但对于激发的富电子 Ar-N 2 +存在竞争性解离失活途径，这需要替代的光-氧化还原方法可实现高效耦合。
• Catalytic Direct Construction of Cyano-tetrazoles
  作者：Ming-Yang Xiao、Meng-Meng Zheng、Xing Peng、Xiao-Song Xue、Fa-Guang Zhang、Jun-An Ma

  DOI：10.1021/acs.orglett.0c03025

  日期：2020.10.2

  Cyano-tetrazole is the first reported compound that bears four nitrogen atoms in a single five-membered ring. This unique molecular scaffold has long been ignored after its discovery in 1885, mainly attributed to the scarcity of available synthetic methods. Indeed, the most popular approach to tetrazoles (that is the cycloaddition reaction between nitriles and azides) has inevitably excluded the possibility

  氰基四唑是第一个报道的在一个五元环上带有四个氮原子的化合物。这种独特的分子支架在1885年被发现后就一直被人们忽略，这主要归因于缺乏可用的合成方法。确实，最流行的四唑方法（即腈与叠氮化物之间的环加成反应）不可避免地排除了引入有价值的氰基来修饰最终杂环核的可能性。在这里，我们通过容易获得的芳基重氮盐和重氮乙腈之间的简单，直接和实用的环加成转化，描述了与长时间追求的氰基-四唑完全不同的分离策略。
• Thermally Induced Carbohydroxylation of Styrenes with Aryldiazonium Salts
  作者：Stephanie Kindt、Karina Wicht、Markus R. Heinrich

  DOI：10.1002/anie.201601656

  日期：2016.7.18

  The radical carbohydroxylation of styrenes with aryldiazonium salts has been achieved under mild thermal conditions. A broad range of aryldiazonium salts was tolerated, and the reaction principle based on a radical-polar crossover mechanism could be extended to carboetherification as well as to a two-step, metal-free variant of the Meerwein arylation leading to stilbenes.

  苯乙烯与芳基重氮盐的自由基碳羟基化已在温和的热条件下实现。可以耐受多种芳基重氮盐，并且基于自由基-极性交叉机制的反应原理可以扩展到碳醚化以及产生茋的Meerwein芳基化的两步、无金属变体。
• An Easy Route to (Hetero)arylboronic Acids
  作者：William Erb、Akila Hellal、Mathieu Albini、Jacques Rouden、Jérôme Blanchet

  DOI：10.1002/chem.201402487

  日期：2014.5.26

  unprecedented spontaneous reactivity between diazonium salts and diboronic acid has been unveiled, leading to a versatile arylboronic acid synthesis directly from (hetero)arylamines. This fast reaction (35 min overall) tolerates a wide range of functional groups and is carried out under very mild conditions. The radical nature of the reaction mechanism has been investigated.

  重氮盐和二硼酸之间空前的自发反应性已经被揭示出来，从而导致直接由（杂）芳基胺合成多功能的芳基硼酸。这种快速反应（总共35分钟）可耐受各种官能团，并且在非常温和的条件下进行。已经研究了反应机理的根本性质。