5-fluoro-2-(o-tolyl)pyridine | 1186689-43-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 5-fluoro-2-(o-tolyl)pyridine
• 英文别名: 5-Fluoro-2-(2-methylphenyl)pyridine
• CAS: 1186689-43-9
• 化学式: C₁₂H₁₀FN
• 分子量: 187.217
• InChiKey: USKMVWLTAQMQDG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  14
• 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：
  12.9
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  5-fluoro-2-(o-tolyl)pyridine 在 N-氯代丁二酰亚胺 、 palladium diacetate 、 溶剂黄146 作用下， 反应 12.0h， 生成 2-(2-chloro-6-methylphenyl)-5-fluoropyridine
  参考文献：
  名称：

  Mechanistic Comparison between Pd-Catalyzed Ligand-Directed C−H Chlorination and C−H Acetoxylation

  摘要：

  This communication describes detailed investigations of the mechanism of the Pd-catalyzed C-H chlorination and acetoxylation of 2-o-tolylpyridine. Under the conditions examined, both reactions proceed via rate-limiting cyclopalladation. However, substrate and catalyst order as well as Hammett data Indicate that the intimate mechanism of cyclopalladation differs significantly between PdCl2-catalyzed chlorination and Pd(OAc)(2)-catalyzed acetoxylation.

  DOI：

  10.1021/ol901820w
• 作为产物：
  描述：

  3-氟吡啶 、 2-甲基苯硼酸 生成 5-fluoro-2-(o-tolyl)pyridine
  参考文献：
  名称：

  Palladium-catalyzed C–H arylation using aryltrifluoroborates in conjunction with a MnIII oxidant under mild conditions

  摘要：

  This paper describes the development of a mild Pd-catalyzed C-H arylation reaction using potassium aryltrifluoroborates in conjunction with Mn(OAc)3 as the oxidant. The scope of this transformation is explored with a variety of different aryltrifluoroborates and arylpyridine substrates. Preliminary mechanistic studies suggest that the reaction proceeds via a high-valent Pd mechanism with C-H activation occurring at or before the rate determining step. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2013.04.114

文献信息

• Room-Temperature C–H Arylation: Merger of Pd-Catalyzed C–H Functionalization and Visible-Light Photocatalysis
  作者：Dipannita Kalyani、Kate B. McMurtrey、Sharon R. Neufeldt、Melanie S. Sanford

  DOI：10.1021/ja208068w

  日期：2011.11.23

  This communication describes the development of a room-temperature ligand-directed C-H arylation reaction using aryldiazonium salts. This was achieved by the successful merger of palladium-catalyzed C-H functionalization and visible-light photoredox catalysis. The new method is general for a variety of directing groups and tolerates many common functional groups.

  该通讯描述了使用芳基重氮盐进行室温配体导向的 CH 芳基化反应的开发。这是通过钯催化的 CH 官能化和可见光光氧化还原催化的成功合并实现的。新方法适用于各种导向基团，并能容忍许多常见的官能团。
• One‐Pot Tandem Photoredox and Cross‐Coupling Catalysis with a Single Palladium Carbodicarbene Complex
  作者：Yu‐Cheng Hsu、Vincent C.‐C. Wang、Ka‐Chun Au‐Yeung、Chung‐Yu Tsai、Chun‐Chi Chang、Bo‐Chao Lin、Yi‐Tsu Chan、Chao‐Ping Hsu、Glenn P. A. Yap、Titel Jurca、Tiow‐Gan Ong

  DOI：10.1002/anie.201800951

  日期：2018.4.16

  transition‐metal‐catalyzed coupling (2 e− process) and photoredox catalysis (1 e− process) has emerged as a powerful approach to catalyze difficult cross‐coupling reactions under mild reaction conditions. Reported is a palladium carbodicarbene (CDC) complex that mediates both a Suzuki–Miyaura coupling and photoredox catalysis for C−N bond formation upon visible‐light irradiation. These two catalytic pathways

  常规的过渡金属催化的偶联（2的组合 ë -和photoredox催化（1过程）  ë -处理）已经成为一种强有力的方法来催化温和反应条件下难以交叉偶联反应。报道了一种钯碳二碳烯（CDC）复合物，它在可见光照射下介导铃木-宫浦偶合和光氧化还原催化C-N键的形成。这两种催化途径可以结合起来，以促进传统的过渡金属催化的偶合和光氧化还原催化，在环境条件下用单一催化剂在高效的一锅法中介导CH芳基化。
• Facilitating Rh-Catalyzed C–H Alkylation of (Hetero)arenes and 6-Arylpurine Nucleosides (Nucleotides) with Electrochemistry
  作者：Qi-Liang Yang、Ying Liu、Lei Liang、Zhi-Hao Li、Gui-Rong Qu、Hai-Ming Guo

  DOI：10.1021/acs.joc.2c00391

  日期：2022.5.6

  An electrochemical approach to promote the ortho-C–H alkylation of (hetero)arenes via rhodium catalysis under mild conditions is described. This approach features mild conditions with high levels of regio- and monoselectivity that tolerate a variety of aromatic and heteroaromatic groups and offers a widely applicable method for late-stage diversification of complex molecular architectures including

  描述了一种在温和条件下通过铑催化促进（杂）芳烃的邻-C-H 烷基化的电化学方法。这种方法具有温和的条件，具有高水平的区域选择性和单选择性，可耐受各种芳香族和杂芳香族基团，并为复杂分子结构的后期多样化提供了一种广泛适用的方法，包括色氨酸、雌酮、地西泮、核苷和核苷酸。烷基硼酸和酯以及烷基三氟硼酸盐被证明是合适的偶联配对物。关键铑中间体的分离和机理研究为铑（III/IV 或 V）方案提供了强有力的支持。
• <i>Meso</i> ‐2‐MethoxyNaphthalenyl‐BODIPY as Efficient Organic Dye for Metallaphotoredox Catalysis
  作者：Elena Bassan、Francesco Calogero、Yasi Dai、Angela Dellai、Alessandro Franceschinis、Emanuele Pinosa、Fabrizia Negri、Andrea Gualandi、Paola Ceroni、Pier Giorgio Cozzi

  DOI：10.1002/cctc.202201380

  日期：2023.2.8

  Metallaphotoredox Catalysis: A BODIPY dyad was designed and synthetized in order to allow the population of its long-lived triplet state. It was studied from a photophysical and computational perspective, and applied to promote C−C bond formation in tandem with a Pd species.

  金属光氧化还原催化：设计并合成了一种 BODIPY 二元体，以允许其长期存在的三重态的群体。它从光物理和计算的角度进行了研究，并应用于促进与 Pd 物种串联的 C−C 键形成。
• A FIRST DEVICE COMPRISING IRIDIUM COMPLEXES WITH AZA-BENZO FUSED LIGANDS
  申请人：Universal Display Corporation

  公开号：EP3000816B1

  公开（公告）日：2017-12-20