2-联苯苯并噁唑 | 17064-45-8

• 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: 2-联苯苯并噁唑
• 英文名称: 2-(4-biphenylyl)benzoxazole
• 英文别名: 2-([1,1'-biphenyl]-4-yl)benzo[d]oxazole；2-(biphenyl-4-yl)benzoxazole；2-(4'-Biphenylyl)-benzoxazol；2-([1,1'-biphenyl]-4-yl)benzoxazole；2-([biphenyl]-4-yl)benzo[d]oxazole；2-Biphenylyl-benzoxazol；2-Biphenylbenzoxazole；2-(4-phenylphenyl)-1,3-benzoxazole
• CAS: 17064-45-8
• 化学式: C₁₉H₁₃NO
• 分子量: 271.318
• InChiKey: CYCMQKNWEVYOIJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.1
• 重原子数：
  21
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  26
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2934999090

反应信息

• 作为反应物：
  描述：

  iridium(III) chloride trihydrate 、 2-联苯苯并噁唑 以 乙二醇乙醚 、 水 为溶剂， 反应 12.0h， 生成
  参考文献：
  名称：

  Highly phosphorescent iridium(iii) complexes based on 2-(biphenyl-4-yl)benzo[d]oxazole derivatives: synthesis, structures, properties and DFT calculations

  摘要：

  已合成了一系列基于2-(联苯基-4-基)苯并[d]噁唑的双环金属化铱(iii)配合物，并展示了它们的高量子效率。

  DOI：

  10.1039/c5nj00975h
• 作为产物：
  描述：

  4-碘联苯 在 bis-triphenylphosphine-palladium(II) chloride 、 三苯基膦 甲烷磺酸 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 甲苯 为溶剂， 120.0 ℃ 、620.52 kPa 条件下， 反应 3.25h， 生成 2-联苯苯并噁唑
  参考文献：
  名称：

  Synthesis of 2-arylbenzoxazoles via the palladium-catalyzed carbonylation and condensation of aromatic halides and o-aminophenols

  摘要：

  A new synthetic method is reported in which 2-arylbenzoxazoles can be prepared by the palladium-catalyzed condensation of aryl halides with o-aminophenols followed by dehydrative cyclization. This method is tolerant of a wide variety of functional groups on either aromatic ring and gives good to excellent yields of products. An aliphatic vicinal amino alcohol gave a bis-acylated product as well as a chlorine-containing product with only a small amount of the desired 2-aryloxazole being formed. Methyl iodide and benzyl bromide gave only alkylated products.

  DOI：

  10.1021/jo00036a025

文献信息

• Synthesis of 2-substituted pyrimidines and benzoxazoles via a visible-light-driven organocatalytic aerobic oxidation: enhancement of the reaction rate and selectivity by a base
  作者：Lin Wang、Zhi-Gang Ma、Xiao-Jing Wei、Qing-Yuan Meng、Deng-Tao Yang、Shao-Fu Du、Zi-Fei Chen、Li-Zhu Wu、Qiang Liu

  DOI：10.1039/c4gc00337c

  日期：——

  An efficient visible-light-driven photocatalytic oxidation of various 2-substituted dihydropyrimidines and phenolic imines has been achieved using an organic photocatalyst eosin Y bis(tetrabutyl ammonium salt) (TBA-eosin Y) and inexpensive oxidant molecular oxygen. With the aid of a base, significantly enhanced photoinduced electron transfer from substrates dihydropyrimidines or phenolic imines to the excited state of TBA-eosin Y has enabled the aerobic oxidation to yield 2-(methylthio)pyrimidines or 2-arylbenzoxazoles selectively.

  利用有机光催化剂藻红Y双(四丁基铵盐)(TBA-藻红Y)和廉价氧化剂分子氧，已经实现了各种2-取代二氢嘧啶和酚亚胺的高效可见光驱动光催化氧化反应。在碱的辅助下，从底物二氢嘧啶或酚亚胺到TBA-藻红Y激发态的显著增强的光诱导电子转移，使得空气氧化能够选择性地生成2-(甲硫基)嘧啶或2-芳基苯并噁唑。
• Synthesis of heterocyclic compounds
  申请人：EASTMAN CHEMICAL COMPANY

  公开号：EP0479161A1

  公开（公告）日：1992-04-08

  A new synthetic method is reported in which 2-arylbenz(ox,imid,thi)azoles can be prepared by the palladium catalyzed condensation of aromatic halides with o-amino(phenol, aniline, thiophenol)s followed by dehydrative cyclization. This method is tolerant of a wide variety of functional groups on either aromatic ring and gives good to excellent yields of products.

  一种新的合成方法被报道，其中2-芳基苯并(氧,眯,硫)唑可以通过钯催化的芳香卤化物与邻氨基(酚,苯胺,硫酚)的缩合反应，随后进行脱水环化来制备。这种方法对两个芳香环上的各种功能团都具有耐受性，并且能够得到良好到优异的产物收率。
• Bimetallic Cooperative Catalysis for Decarbonylative Heteroarylation of Carboxylic Acids via C‐O/C‐H Coupling
  作者：Chengwei Liu、Chong‐Lei Ji、Tongliang Zhou、Xin Hong、Michal Szostak

  DOI：10.1002/anie.202100949

  日期：2021.5.3

  Cooperative bimetallic catalysis is a fundamental approach in modern synthetic chemistry. We report bimetallic cooperative catalysis for the direct decarbonylative heteroarylation of ubiquitous carboxylic acids via acyl C‐O/C‐H coupling. This novel catalytic system exploits the cooperative action of a copper catalyst and a palladium catalyst in decarbonylation, which enables highly chemoselective synthesis

  协同双金属催化是现代合成化学的基本方法。我们报告了通过酰基 C-O/C-H 偶联对普遍存在的羧酸进行直接脱羰杂芳基化的双金属协同催化。这种新型催化体系利用铜催化剂和钯催化剂在脱羰基化中的协同作用，在没有预官能化或导向基团的情况下，通过羧酸与杂芳烃的偶联，能够高度化学选择性地合成重要的杂二芳基基序。这种协同脱羰方法使用常见的羧酸，并显示出非常广泛的底物范围（> 70 个示例），包括药物的后期修饰和生物活性剂的简化合成。进行了广泛的机理和计算研究，以深入了解反应的机理。关键步骤涉及通过铜-芳基物质与氧化加成/脱羰产生的钯（II）中间体的金属转移来交叉两个催化循环。
• Delivering 2-Aryl Benzoxazoles through Metal-Free and Redox-Neutral De-CF₃ Process
  作者：Xinxin Qiao、Yong-De Zhao、Mingru Rao、Zhan-Wei Bu、Guangwu Zhang、Heng-Ying Xiong

  DOI：10.1021/acs.joc.1c01619

  日期：2021.10.1

  demonstrated broad substrate scope and good compatibility of functional groups. 2-Aryl benzothiazole and 2-aryl benzoimidazole could be smoothly assembled in the same manner. On the basis of preliminary mechanistic studies, base initiated and aromatization driven β-carbon elimination was considered to be the key step for the formation of 2. This reaction offers an alternative, facile, and sustainable route to

  CF 3 -氢苯并恶唑的C sp3 -CF 3键的意外断裂已被公开，在无金属和氧化还原中性条件下提供了一系列2-芳基苯并恶唑。这种转变展示了广泛的底物范围和良好的官能团兼容性。2-芳基苯并噻唑和2-芳基苯并咪唑可以以相同的方式顺利组装。在初步机理研究的基础上，碱引发和芳构化驱动的 β-碳消除被认为是形成2的关键步骤。该反应为获取重要的 2-芳基苯并恶唑基序提供了一种替代、简便且可持续的途径。
• Palladium-catalyzed desulfitative C-arylation of a benzo[d]oxazole C–H bond with arene sulfonyl chlorides
  作者：Manli Zhang、Shouhui Zhang、Miaochang Liu、Jiang Cheng

  DOI：10.1039/c1cc14718h

  日期：——

  A palladium-catalyzed direct desulfitative C-arylation of a benzo[d]oxazole C-H bond with arene sulfonyl chlorides is described. The procedure tolerates halo, cyano, nitro, trifluoromethyl, acetyl and acetylamino groups on the phenyl ring of sulfonyl chlorides, providing the arylation products in moderate to good yields. It represents a practical and attractive alternative for the synthesis of 2-aryl

  描述了苯并[d]恶唑CH键与芳烃磺酰氯的钯催化的直接脱硫C-芳基化。该方法容许磺酰氯苯环上的卤素，氰基，硝基，三氟甲基，乙酰基和乙酰氨基基团，以中等至良好的产率提供芳基化产物。它代表了合成2-芳基苯并恶唑的实用且有吸引力的替代方法。