1-benzyl-3-phenyl-1H-indazole

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 1-benzyl-3-phenyl-1H-indazole
• 英文别名: 1-Benzyl-3-phenylindazole
• 化学式: C₂₀H₁₆N₂
• 分子量: 284.36
• InChiKey: MUVDDQLNMMNMMN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.8
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.05
• 拓扑面积：
  17.8
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-benzyl-3-phenyl-2H-indazole 、 1-benzyl-3-phenyl-1H-indazole 在 potassium tert-butylate 作用下， 以 二甲基亚砜 、 mineral oil 为溶剂， 反应 5.0h， 以25 mg的产率得到3-苯基-1H-吲唑
  参考文献：
  名称：

  Pd- and Cu-catalyzed C–H arylation of indazoles

  摘要：

  The palladium- and copper-catalyzed C-H arylation reactions of 1H- and 2H-indazoles with haloarenes are described. A PdCl2/phen/Ag2CO3/K3PO4 catalytic system is effective for the C-H arylation of 1H- and 2H-indazoles with haloarenes, whereas a less expensive CuI/phen/LiOt-Bu catalytic system is applicable to the C H coupling of substituted 2H-indazoles and iodoarenes. The utility of newly developed catalyst was demonstrated in the rapid synthesis of YC-1 (an antitumor agent) and YD-3 (platelet anti-aggregating agent). These new reactions represent important direct functionalization tools of indazoles, well-known bioisosteres of pharmaceutically important indole core. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2012.05.091
• 作为产物：
  描述：

  3-碘吲唑 在 四(三苯基膦)钯 potassium tert-butylate 、 碳酸氢钠 作用下， 以 四氢呋喃 、 乙醇 、 水 、 甲苯 为溶剂， 反应 5.0h， 生成 1-benzyl-3-phenyl-1H-indazole
  参考文献：
  名称：

  Suzuki-type cross-coupling reaction of 3-iodoindazoles with aryl boronic acids: A general and flexible route to 3-arylindazoles

  摘要：

  This paper describes a Suzuki Type cross coupling reaction of 3-iodoindazoles with aryl and heteroaryl boronic acids as a general route to 3-arylindazoles. The coupling reaction is illustrated by the preparation of new aryl- or heteroarylindazoles 7. Scope and limitation of the method are outlined. The coupling reaction works best on a 1-substituted indazole nucleus. The usefulness of the reaction is illustrated by a short practical synthesis of YC-1, a pharmacological agent potentialy useful for the treatment of cardiovascular diseases or erectile dysfunction. (C) 1999 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(99)00324-5

文献信息

• Rh(<scp>iii</scp>)-catalyzed, hydrazine-directed C–H functionalization with 1-alkynylcyclobutanols: a new strategy for 1<i>H</i>-indazoles
  作者：Lei Zhang、Junyu Chen、Xiahe Chen、Xiangyun Zheng、Jian Zhou、Tianshuo Zhong、Zhiwei Chen、Yun-Fang Yang、Xinpeng Jiang、Yuan-Bin She、Chuanming Yu

  DOI：10.1039/c9cc08884a

  日期：——

  through a hydrazine-directed C–H functionalization pathway. This [4+1] annulation, based on the cleavage of a Csp–Csp triple bond in alkynylcyclobutanol, provides a new pathway to prepare diverse 1H-indazoles under mild reaction conditions.

  Rh（III）催化的苯肼与1-炔基环丁醇的偶联是通过肼指示的C–H官能化途径实现的。基于炔基环丁醇中Csp–Csp三键的裂解，这种[4 + 1]环化为在温和的反应条件下制备各种1 H-吲唑提供了一条新途径。
• [Bis-(trifluoroacetoxy)iodo]benzene-Mediated Oxidative Direct Amination C-N Bond Formation: Synthesis of 1<i>H</i>-Indazoles
  作者：Zhiguo Zhang、Yuanyuan Huang、Guoqing Huang、Guisheng Zhang、Qingfeng Liu

  DOI：10.1002/jhet.2839

  日期：2017.7

  An efficient [bis‐(trifluoroacetoxy)iodo]benzene (PIFA)‐mediated oxidative C‐N bond formation is developed for the synthesis of 1H‐indazoles from readily available arylhydrazones. The reaction tolerates a wide range of functional groups and has broad scope of substrates. Moreover, this method is a relative green and reliable method for rapid preparation of substituted 1H‐indazoles under mild conditions

  已开发出一种有效的[双（三氟乙酰氧基）碘]苯（PIFA）介导的氧化性C-N键形成，用于从易得的芳基hydr酮合成1 H-吲唑。该反应可耐受各种官能团并且具有广泛的底物范围。此外，该方法是在温和条件下快速制备取代的1 H-吲唑的相对绿色可靠方法。
• One-pot synthesis of 1-alkyl-1H-indazoles from 1,1-dialkylhydrazones via aryne annulation
  作者：Nataliya A. Markina、Anton V. Dubrovskiy、Richard C. Larock

  DOI：10.1039/c2ob07117g

  日期：——

  The reaction of readily accessible 1,1-dialkylhydrazones with commercially available o-(trimethylsilyl)aryl triflates provides a direct one-step route to pharmaceutically important 1-alkylindazoles. The products are obtained in high yields by one-pot NCS-chlorination/aryne annulation or Ac2O-acylation/deprotection/aromatization protocols.

  容易获得的1,1-二烷基肼酮与市售的o-(三甲基硅基)芳基三氟甲磺酸酯反应，提供了一种直接的一步法合成药物重要的1-烷基吡唑并的途径。通过一次性NCS氯化/芳烃环化或Ac2O酰化/去保护/芳香化方案，可以高产率地获得产物。
• A robust protocol for Pd(ii)-catalyzed C-3 arylation of (1H) indazoles and pyrazoles: total synthesis of nigellidine hydrobromide
  作者：Mengchun Ye、Andrew J. F. Edmunds、James A. Morris、David Sale、Yejia Zhang、Jin-Quan Yu

  DOI：10.1039/c3sc50184a

  日期：——

  indazole and pyrazoles are privileged structural motifs in agrochemicals and pharmaceuticals. C-3 C-H arylation of (1H) indazole and pyrazole has been a significant challenge due to the poor reactivity of the C-3 position. Herein, we report a practical Pd(II)/Phen catalyst and conditions for direct C-3 arylation of indazole and pyrazole with ArI or ArBr without using Ag additives as halide scavengers. The

  C3-芳基吲唑和吡唑是农用化学品和药物中的优先结构基序。由于C-3位置的反应性较差，（1H）吲唑和吡唑的C-3 CH芳基化已成为一项重大挑战。在这里，我们报告了一种实用的Pd（II）/ Phen催化剂，以及吲哚和吡唑与ArI或ArBr进行直接C-3芳基化而不使用Ag添加剂作为卤化物清除剂的条件。发现使用甲苯，氯苯，三氟甲基苯和均三甲苯作为溶剂对于选择性和反应性至关重要。我们通过首次氢溴酸尼古丁的全合成以及与农药和药物分子结构相关的杂环的简便制备，进一步证明了该方案的稳健性。
• Method of treating disorders related to protease-activated receptors-induced cell activation
  申请人：——

  公开号：US20020004518A1

  公开（公告）日：2002-01-10

  A method of treating a disorder related to cell activation induced by protease-activated receptors. The method includes administering to a subject in need thereof a compound having a pyrazolyl core; an aryl group, via an via an alkylene linker, bonded to 1-N of the pyrazolyl core; a second aryl group fused at 4-C and 5-C of the pyrazolyl core; and a third aryl group bonded directly to 3-C of the pyrazolyl core.

  一种治疗与蛋白酶激活受体引起的细胞活化相关障碍的方法。该方法包括向需要的受试者施用具有吡唑基核的化合物；通过烷基连接剂与吡唑基核的1-N键合的芳基团；在吡唑基核的4-C和5-C处融合的第二个芳基团；以及直接与吡唑基核的3-C键合的第三个芳基团。