5-(5-methylthiophen-2-yl)pyrimidine | 1310560-13-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 噻吩类
• 英文名称: 5-(5-methylthiophen-2-yl)pyrimidine
• CAS: 1310560-13-4
• 化学式: C₉H₈N₂S
• 分子量: 176.242
• InChiKey: WVQLKHYLNWNWSG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  54
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-甲基噻吩 在 (1,5-cyclooctadiene)(methoxy)iridium(I) dimer 、 sodium carbonate 、 三(邻甲基苯基)磷 、 4,4'-二叔丁基-2,2'-二吡啶 、 bis(dibenzylideneacetone)-palladium⁽⁰⁾ 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 36.0h， 生成 5-(5-methylthiophen-2-yl)pyrimidine
  参考文献：
  名称：

  A C–H Borylation Approach to Suzuki–Miyaura Coupling of Typically Unstable 2–Heteroaryl and Polyfluorophenyl Boronates

  摘要：

  A method for the synthesis of biaryls and heterobiaryls from arenes and haloarenes without the intermediacy of unstable boronic acids is described. Pinacol boronate esters that are analogous to unstable boronic acids are formed in high yield by iridium-catalyzed C-H borylation of heteroarenes and fluoroarenes. These boronates are stable in the solid state or in solution and can be generated and used in situ. They couple with aryl halides in the presence of simple palladium catalysts, providing a convenient route to biaryl and heteroaryl products that have been challenging to prepare via boronic acids.

  DOI：

  10.1021/ol301570t

文献信息

• Direct C–H Arylation of Thiophenes at Low Catalyst Loading of a Phosphine-Free Bis(alkoxo)palladium Complex
  作者：Yabo Li、Jingran Wang、Mengmeng Huang、Zhiwei Wang、Yusheng Wu、Yangjie Wu

  DOI：10.1021/jo402745b

  日期：2014.4.4

  An efficient phosphine-free direct C–H arylation of thiophenes at the α-position has been developed at low catalyst loading of bis(alkoxo)palladium complex (Cat.I, 0.1–0.2 mol %). The developed synthetic method can be applied to the synthesis of α-aryl/heteroaryl thiophenes from aryl or heteroaryl bromides in good to excellent yields and is compatible with the substrates bearing electron-donating or

  在双（烷氧基）钯配合物（Cat.I，0.1-0.2 mol％）的低催化剂负载下，已开发出一种有效的无磷的噻吩在α位上无膦直接CH芳基化的化合物。所开发的合成方法可用于从芳基或杂芳基溴化物以良好至优异的产率合成α-芳基/杂芳基噻吩，并且与带有给电子或吸电子基团的底物相容。噻吩2位和5位的反应性是相同的，并且在最佳条件下不依赖于空间位阻。该条件还可以以高转化率应用于其他杂环部分，例如苯并噻吩，苯并呋喃和吡咯。
• Bulky α-diimine palladium complexes: highly efficient for direct C–H bond arylation of heteroarenes under aerobic conditions
  作者：Jia-Sheng Ouyang、Yan-Fang Li、Dong-Sheng Shen、Zhuofeng Ke、Feng-Shou Liu

  DOI：10.1039/c6dt02544g

  日期：——

  bidentate N,N-palladium complex C3 with both a backbone and N-aryl bulkiness was found to be a highly efficient precatalyst under aerobic conditions. With a low palladium loading of 0.5–0.1 mol%, a variety of heteroarenes with challenging bulky steric aryl bromides as well as heteroaryl bromides are all applicable for this cross-coupling reaction.

  通过增强主链和N-芳基部分的体积的策略，我们设计并合成了一种体积较大的α-二亚胺钯配合物（即[Ar–N C（R）–C（R）N– Ar] PdCl 2，（Ar ＝ 2-苯甲酰基-4，6-二甲基苯基）}，C1，R ＝ H；C2，R ＝ An；C3，R ＝ Ph）。这些钯配合物的结构已得到很好的表征，而C1和C3则通过X射线衍射进一步表征。对杂芳烃的直接CH键芳构化筛选了预催化剂的催化性能。二齿N，N-钯络合物C3与两个主链和ñ -芳基膨松性被发现是在有氧条件下高效率的预催化剂。钯负载量低至0.5-0.1 mol％，各种具有挑战性的庞大的空间芳基溴化物和杂芳基溴化物的杂芳烃都适用于这种交叉偶联反应。
• Rigid α-diimine palladium complexes as direct C-H arylation precatalysts for thiophenes and heteroaryl bromides
  作者：Tai-Heng Gao、Ying Xiong、Pengfeng Guo、Feng-Shou Liu、Limin Zhao

  DOI：10.1016/j.inoche.2022.109403

  日期：2022.6

  The direct C-H heteroarylation of thiophenes, promoted by rigid α-diimine palladium complexes is described. This approach exhibits broad substrate scopes with functional group tolerant, and proceeds with the formation of regioselective products.

  描述了由刚性α-二亚胺钯配合物促进的噻吩的直接 CH 杂芳基化。这种方法表现出广泛的底物范围和官能团耐受性，并继续形成区域选择性产物。
• BRIDGED CARBAMATE MACROLIDES
  申请人：Kim Heejin

  公开号：US20080027012A1

  公开（公告）日：2008-01-31

  The present invention discloses compounds of formulae (I) and (II) or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.

  本发明公开了式(I)和(II)的化合物或其药学上可接受的盐、酯或前药：这些化合物具有抗菌性能。本发明还涉及含有上述化合物的药物组合物，用于治疗需要抗生素治疗的受试者。该发明还涉及通过给予含有本发明化合物的药物组合物来治疗受试者的细菌感染的方法。该发明还包括制备本发明化合物的方法。
• C-9 ALKENYLIDINE BRIDGED MACROLIDES
  申请人：Phan Ly Tam

  公开号：US20080119418A1

  公开（公告）日：2008-05-22

  The present invention discloses compounds of formulae (I), (II) or pharmaceutically acceptable salts, esters, or prodrugs thereof: which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.

  本发明揭示了以下化合物的公式（I），（II）或其药学上可接受的盐，酯或前药：具有抗菌性质。本发明还涉及包括上述化合物的制药组合物，用于治疗需要抗生素治疗的受体。本发明还涉及通过给予包含本发明化合物的制药组合物来治疗受体的细菌感染的方法。本发明还包括制备本发明化合物的方法。