2-(2-phenylethynyl)pyrazine | 96129-41-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 2-(2-phenylethynyl)pyrazine
• 英文别名: 2-(phenylethynyl)pyrazine；2-phenylethynylpyrazine
• CAS: 96129-41-8
• 化学式: C₁₂H₈N₂
• 分子量: 180.209
• InChiKey: XMFNKZPINKPURY-UHFFFAOYSA-N

物化性质

• 熔点：
  48 °C(Solv: ethyl ether (60-29-7); hexane (110-54-3))
• 沸点：
  332.6±22.0 °C(Predicted)
• 密度：
  1.18±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  25.8
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-甲氧基-1,4-萘醌 、 2-(2-phenylethynyl)pyrazine 以 苯 为溶剂， 以74%的产率得到2a-methoxy-2-phenyl-1-pyrazin-2-yl-8aH-cyclobuta[b]naphthalene-3,8-dione
  参考文献：
  名称：

  Small molecular inhibitors of miR-1 identified from photocycloadducts of acetylenes with 2-methoxy-1,4-naphthalenequinone

  摘要：

  Small molecules which can modulate endogenous microRNAs are important chemical tools to study microRNA regulational network. In this Letter we screened the [2+2] photocycloadducts of 2-methoxy-1,4-naphthalenequinone with a series of aryl acetylenes on their activity to modulate endogenous microRNAs. A potent inhibitor of the muscle-specific miR-1 which is closely related with cardiac development and disease was identified. The small molecular inhibitor was the cyclobutene type product derived from the photocycloaddition of 2-methoxy-1,4-naphthalenequinone with tert-butyl (5-(phenylethynyl) quinolin-8-yl) carbonate. Analogues of the small molecular inhibitor were then prepared using similar photocycloaddition reactions for evaluation on inhibition activity on miR-1 to provide structure-activity relationship of the miR-1 inhibitor. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2013.04.058
• 作为产物：
  描述：

  2-吡嗪乙腈 在 sodium ethanolate 、 溶剂黄146 、 sodium nitrite 作用下， 反应 3.0h， 生成 2-(2-phenylethynyl)pyrazine
  参考文献：
  名称：

  Alkynes from 5-aminoisoxazoles

  摘要：

  DOI：

  10.1021/jo00213a034

文献信息

• Substituted benzazoles and methods of their use as inhibitors of Raf kinase
  申请人：——

  公开号：US20040122237A1

  公开（公告）日：2004-06-24

  New substituted benz-azole compounds, compositions and methods of inhibition of Raf kinase activity in a human or animal subject are provided. The new compounds compositions may be used either alone or in combination with at least one additional agent for the treatment of a Raf kinase mediated disorder, such as cancer.

  提供了新的替代苯唑化合物、组合物和抑制人类或动物主体中Raf激酶活性的方法。这些新化合物组合物可以单独使用，也可以与至少一种额外药物结合，用于治疗由Raf激酶介导的疾病，如癌症。
• Palladium precatalysts containing meta-terarylphosphine ligands for expedient copper-free Sonogashira cross-coupling reactions
  作者：Yong Yang、Joyce Fen Yan Lim、Xinying Chew、Edward G. Robins、Charles W. Johannes、Yee Hwee Lim、Howard Jong

  DOI：10.1039/c5cy00507h

  日期：——

  and Cy*Phine-nBu), demonstrated exceptional broad-based performance and operational simplicity in the copper-free Sonogashira cross-coupling of challenging (hetero-)aryl chlorides and terminal alkynes. Modifications to the periphery of the ligand scaffold showed modest improvements in the reaction rate when more electron-donating substituents were incorporated, which hints at potential design upgrades

  利用演化的间-叔芳基膦配体Cy * Phine的不同变异，开发了三种新颖的钯配合物。这些空气和水分稳定的配合物PdCl 2 L 2（L = Cy * Phine，Cy * Phine-CF 3和Cy * Phine- n Bu）在无铜Sonogashira中表现出优异的广泛性能和操作简便性具有挑战性的（杂）芳基氯化物和末端炔烃的交叉偶联。当引入更多的供电子取代基时，对配体支架外围的修饰显示出反应速率的适度提高，这暗示了未来潜在的设计升级。
• [EN] COMPOUNDS USEFUL FOR TREATING A MANNHEIMIA HAEMOLYTICA OR HISTOPHILUS SOMNI INFECTION<br/>[FR] COMPOSÉS UTILES POUR TRAITER UNE INFECTION PAR MANNHEIMIA HAEMOLYTICA OU HISTOPHILUS SOMNI
  申请人：INTERVET INT BV

  公开号：WO2018115421A1

  公开（公告）日：2018-06-28

  The present invention discloses compounds of formula (I) that are useful in the treatment of respiratory diseases of animals, especially Bovine or Swine Respiratory disease (BRD and SRD).

  本发明公开了一种化合物，其化学式为（I），可用于治疗动物的呼吸道疾病，特别是牛或猪的呼吸道疾病（BRD和SRD）。
• A general catalyst for Suzuki–Miyaura and Sonogashira reactions of aryl and heteroaryl chlorides in water
  作者：Hui Peng、Ya-Qin Chen、Shu-Lan Mao、Yun-Xiao Pi、You Chen、Ze-Yu Lian、Tong Meng、Sheng-Hua Liu、Guang-Ao Yu

  DOI：10.1039/c4ob00846d

  日期：——

  synthesis of 2-(3-sulfonatomesityl)-5-sulfonatoindenyl)dicyclohexylphosphine hydrate sodium salt and its use in palladium-catalyzed Suzuki–Miyaura and Sonogashira coupling reactions in water (and biphasic water–organic solvent mixtures) to prepare a variety of functionalized biaryls and aryl alkynes in excellent yield.

  我们报道了2-（3-磺原子原子化）-5-磺酰基茚基）二环己基膦水合物钠盐的合成及其在钯催化的Suzuki-Miyaura和Sonogashira偶联反应中的使用（以及双相水-有机溶剂混合物），以制备各种官能化的联芳基和芳基炔烃的收率很高。
• Reusable Cu₂O/PPh₃/TBAB System for the Cross-Couplings of Aryl Halides and Heteroaryl Halides with Terminal Alkynes
  作者：Bo-Xiao Tang、Feng Wang、Jin-Heng Li、Ye-Xiang Xie、Man-Bo Zhang

  DOI：10.1021/jo070538o

  日期：2007.8.1

  Cu2O/PPh3/TBAB (n-Bu4NBr) system for the cross-coupling reactions of aryl and heteroaryl halides with terminal alkynes has been developed. Four types of Cu2O, including bulky Cu2O, cubic Cu2O nanoparticles, octahedral Cu2O nanoparticles, and spherical Cu2O nanoparticles, were examined, and the octahedral Cu2O nanoparticles were found to be the most effective catalyst for the reaction. In the presence of the octahedral

  已开发出一种有效且可重复使用的Cu 2 O / PPh 3 / TBAB（n -Bu 4 NBr）系统，用于芳基卤化物和杂芳基卤化物与末端炔烃的交叉偶联反应。检查了四种类型的Cu 2 O，包括大块Cu 2 O，立方Cu 2 O纳米颗粒，八面体Cu 2 O纳米颗粒和球形Cu 2 O纳米颗粒，发现八面体Cu 2 O纳米颗粒是最有效的催化剂反应。在存在八面体Cu 2 O纳米粒子的情况下，PPh 3和TBAB，各种芳基和杂芳基卤化物与炔烃（包括炔醇）的反应均以中等至良好的收率顺利进行。值得注意的是，Cu 2 O / PPh 3 / TBAB系统可以回收并重复使用多次，而不会损失任何活性。