1,3-二氟-2-(4-甲氧基苯基)苯 | 717101-32-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 1,3-二氟-2-(4-甲氧基苯基)苯
• 英文名称: 2,6-difluoro-4'-methoxy-1,1'-biphenyl
• 英文别名: 1,1'-Biphenyl, 2,6-difluoro-4'-methoxy-；1,3-difluoro-2-(4-methoxyphenyl)benzene
• CAS: 717101-32-1
• 化学式: C₁₃H₁₀F₂O
• 分子量: 220.219
• InChiKey: DTYFOFFVDCRHOC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  4-氯苯甲醚 、 2,6-二氟苯硼酸 在 potassium phosphate 、 XPhos Pd G2 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 0.5h， 以95%的产率得到1,3-二氟-2-(4-甲氧基苯基)苯
  参考文献：
  名称：

  A New Palladium Precatalyst Allows for the Fast Suzuki−Miyaura Coupling Reactions of Unstable Polyfluorophenyl and 2-Heteroaryl Boronic Acids

  摘要：

  Boronic acids which quickly deboronate under basic conditions, such as polyfluorophenylboronic acid and five-membered 2-heteroaromatic boronic acids, are especially challenging coupling partners for Suzuki-Miyaura reactions. Nevertheless, being able to use these substrates is highly desirable for a number of applications. Having found that monodentate biarylphosphine ligands can promote these coupling processes, we developed a precatalyst that forms the catalytically active species under conditions where boronic acid decomposition is slow. With this precatalyst, Suzuki-Miyaura reactions of a wide range of (hetero)aryl chlorides, bromides, and triflates with polyfluorophenyl, 2-furan, 2-thiophene, and 2-pyrroleboronic acids and their analogues proceed at room temperature or 40 degrees C in short reaction times to give the desired products in excellent yields.

  DOI：

  10.1021/ja1073799

文献信息

• Copper-Catalyzed Decarboxylative Cross-Coupling of Potassium Polyfluorobenzoates with Aryl Iodides and Bromides
  作者：Rui Shang、Yao Fu、Yan Wang、Qing Xu、Hai-Zhu Yu、Lei Liu

  DOI：10.1002/anie.200904916

  日期：2009.11.23

  For copper only: The decarboxylative cross‐coupling of readily accessible and nonvolatile potassium polyfluorobenzoates with aryl iodides and bromides using a copper catalyst provides polyfluorobiaryls and polyfluorostilbenes in excellent yields (see scheme). Mechanistic analyses are reported for the title reaction.

  仅适用于铜：使用铜催化剂，易于获得且不挥发的多氟苯甲酸钾与芳基碘化物和溴化物的脱羧交叉偶联可提供极佳的收率的多氟联芳基和多氟苯磺酸酯（请参见方案）。报告了标题反应的机理分析。
• Pd-Catalyzed Decarboxylative Cross Coupling of Potassium Polyfluorobenzoates with Aryl Bromides, Chlorides, and Triflates
  作者：Rui Shang、Qing Xu、Yuan-Ye Jiang、Yan Wang、Lei Liu

  DOI：10.1021/ol100008q

  日期：2010.3.5

  Pd-catalyzed decarboxylative cross coupling of potassium polyfluorobenzoates with aryl bromides, chlorides, and triflates is achieved by using diglyme as the solvent. The reaction is useful for synthesis of polyfluorobiaryls from readily accessible and nonvolatile polyfluorobenzoate salts. Unlike the Cu-catalyzed decarboxylation cross coupling where oxidative addition is the rate-limiting step, in

  通过使用二甘醇二甲醚作为溶剂可实现多氟苯甲酸钾与芳基溴化物，氯化物和三氟甲磺酸酯的钯催化脱羧交叉偶联。该反应可用于由容易获得的非挥发性多氟苯甲酸盐合成多氟联芳基。与其中氧化加成是限速步骤的Cu催化的脱羧交叉偶联不同，在Pd催化的形式中，脱羧是限速步骤。
• Highly efficient heterogeneous copper-catalyzed decarboxylative cross-coupling of potassium polyfluorobenzoates with aryl halides leading to polyfluorobiaryls
  作者：Yang Lin、Mingzhong Cai、Zhiqiang Fang、Hong Zhao

  DOI：10.1039/c7ra05711c

  日期：——

  reaction of potassium polyfluorobenzoates with aryl iodides and bromides was achieved in diglyme or DMAc at 130 or 160 °C in the presence of 10–20 mol% of a 1,10-phenanthroline-functionalized MCM-41-immobilized copper(I) complex, [MCM-41-Phen-CuI], yielding a variety of polyfluorobiaryls in good to excellent yields. This heterogeneous copper(I) complex could easily be prepared via a simple procedure

  多氟苯甲酸钾与芳基碘化物和溴化物的异质脱羧交叉偶联反应是在130或160°C的二甘醇二甲醚或DMAc中，在10–20 mol％的1,10-菲咯啉官能化的MCM-41固定化的情况下完成的铜（I）配合物[MCM-41-Phen-CuI]，可产生多种多氟联芳基化合物，收率好至极好。这种异质的铜（I）络合物可以通过简单的方法轻松地从市售易得的廉价试剂中制备，具有与均相CuI / Phen系统相同的催化活性，并且可以通过过滤反应溶液进行回收并循环至少8次。倍，而没有明显丧失催化活性。
• Additive-Free Palladium-Catalyzed Decarboxylative Cross-Coupling of Aryl Chlorides
  作者：Ryan A. Daley、En-Chih Liu、Joseph J. Topczewski

  DOI：10.1021/acs.orglett.9b01620

  日期：2019.6.21

  The cross-coupling of sodium (hetero)aryl carboxylates with (hetero)aryl chlorides proceeds with 1 mol % palladium catalyst and does not require inorganic base, silver salts, or copper salts. This coupling uses two low energy partners, and the only stoichiometric byproducts are carbon dioxide and sodium chloride. The substrate scope includes less activated aryl chlorides and carboxylates (>25 examples)

  （杂）芳基羧酸钠与（杂）芳基氯化物的交叉偶联用1mol％的钯催化剂进行，不需要无机碱，银盐或铜盐。这种耦合使用两个低能伙伴，唯一的化学计量副产物是二氧化碳和氯化钠。底物范围包括较少活化的芳基氯化物和羧酸盐（> 25个实例）。钯的负载量可以降低到0.1mol％，并且可以使用布赫瓦尔德（Buchwald）型预催化剂。
• Pd-catalysed decarboxylative Suzuki reactions and orthogonal Cu-based O-arylation of aromatic carboxylic acids
  作者：Jian-Jun Dai、Jing-Hui Liu、Dong-Fen Luo、Lei Liu

  DOI：10.1039/c0cc04104a

  日期：——

  Pd-catalysed decarboxylative Suzuki reactions and orthogonal Cu-based O-arylation reactions of aromatic carboxylic acids are reported. The new reactions may provide alternative routes for the synthesis of some biaryls and aromatic carboxylic esters.

  钯催化的脱羧Suzuki反应和芳香族羧酸的正交Cu基O-芳基化反应已有报道。新的反应可能为某些联芳基和芳族羧酸酯的合成提供替代途径。