3-(1-甲基-1H-吡唑-4-基)吡啶 | 1200405-85-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 中文名称: 3-(1-甲基-1H-吡唑-4-基)吡啶
• 英文名称: 3-(1-methyl-1H-pyrazol-4-yl)pyridine
• 英文别名: 3-(1-methylpyrazol-4-yl)pyridine
• CAS: 1200405-85-1
• 化学式: C₉H₉N₃
• 分子量: 159.191
• InChiKey: VJDZYMQAODUEKR-UHFFFAOYSA-N

物化性质

• 沸点：
  321.4±25.0 °C(Predicted)
• 密度：
  1.13±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 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：
  30.7
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  3-氯吡啶 、 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole lithium hydroxy-ate complex 在 二(三叔丁基膦)钯 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 1.0h， 以94%的产率得到3-(1-甲基-1H-吡唑-4-基)吡啶
  参考文献：
  名称：

  An improved synthesis of 1-methyl-1H-pyrazole-4-boronic acid pinacol ester and its corresponding lithium hydroxy ate complex: application in Suzuki couplings

  摘要：

  An improved synthesis of 1-methyl-1H-pyrazole-4-boronic acid pinacol ester via isolation of the corresponding lithium hydroxy ate complex is described. The hydroxy ate complex is available in one pot from 4-bromo-1-methyl-1H-pyrazole and triisopropyl borate, and is isolated by filtration in high yield. Furthermore, the resulting lithium hydroxy ate complex has long-term bench stability and can be employed directly in Suzuki couplings without the need for added base. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2009.09.105

文献信息

• NOVEL HETEROCYCLIC COMPOUNDS AS PESTICIDES
  申请人：Bretschneider Thomas

  公开号：US20130261141A1

  公开（公告）日：2013-10-03

  The present application relates to novel heterocyclic compounds, to processes for preparation thereof and to the use thereof for controlling animal pests, which also include arthropods and especially insects.

  本申请涉及新颖的杂环化合物，其制备方法以及用于控制动物害虫的用途，其中包括节肢动物，特别是昆虫。
• Selective Palladium‐Catalyzed Direct CH Arylation of Unsubstituted <i>N</i> ‐Protected Pyrazoles
  作者：Esa T. T. Kumpulainen、Antti Pohjakallio

  DOI：10.1002/adsc.201301139

  日期：2014.5.5

  selective C‐5 arylation of N‐dimethylaminosulfamoyl‐protected pyrazole with aryl bromides is catalyzed by 2–5 mol% palladium in the presence of triphenylphosphine ligand and carboxylic acid additive. Selectivities up to 45:1 (C‐5:C‐4) can be achieved by running the reaction in non‐polar solvents. A thorough study of scope and limitations shows good general tolerance of aryl bromide substitution. However

  在三苯基膦配体和羧酸添加剂的存在下，由2-5％（摩尔）的钯催化N-二甲氨基氨基磺酰基保护的吡唑与芳基溴的高选择性C-5芳基化。通过在非极性溶剂中进行反应，可以实现高达45：1（C-5：C-4）的选择性。对范围和限制的透彻研究表明，芳基溴化物取代具有良好的一般耐受性。不过，在公差限制邻建立-subsitution和质子官能团。该方法与可伸缩的脱保护步骤一起，为合成C-3芳基化的吡唑结构单元提供了一种可行的替代方法。
• Palladium-catalysed direct diarylations of pyrazoles with aryl bromides: a one step access to 4,5-diarylpyrazoles
  作者：Abdelilah Takfaoui、Liqin Zhao、Rachid Touzani、Pierre H. Dixneuf、Henri Doucet

  DOI：10.1016/j.tetlet.2014.01.079

  日期：2014.3

  The palladium-catalysed direct arylation of pyrazoles with aryl halides, using PdCl(C3H5)(dppb)/KOAc catalyst, reveals a similar reactivity of C4 and C5 CH bonds of pyrazoles, whereas the C3 CH bond is almost unreactive, and gives access in one step to a variety of 4,5-diarylpyrazoles. This CH bond functionalisation reaction tolerates a variety of substituents on the aryl bromide such as nitro, cyano

  使用PdCl（C 3 H 5）（dppb）/ KOAc催化剂，钯催化吡唑与芳基卤化物的直接芳基化反应显示出吡唑的C4和C5 C H键具有相似的反应性，而C3 C H键几乎不具有反应性，并一步一步即可获得各种4,5-二芳基吡唑类化合物。该C H键官能化反应容许芳基溴化物上的各种取代基，例如硝基，氰基，甲酰基，丙酰基，酯，氯，氟或三氟甲基。
• Pd-Catalysed Direct 5-Arylation of 1-Methylpyrazole with Aryl Bromides
  作者：Hamed Ammar、Henri Doucet、Anissa Beladhria、Kassem Beydoun、Ridha Salem

  DOI：10.1055/s-0030-1260076

  日期：2011.8

  the base and DMAc as the solvent, promotes the 5-arylation in moderate to high selectivities and yields. A wide variety of aryl and heteroaryl bromide derivatives have been successfully employed. Their electronic and steric properties also have an influence on the regioselectivities and yields of the coupling products. Both electron-poor and electron-rich aryl bromides gave satisfactory results, although

  发现1-甲基吡唑是通过使用芳基溴化物的CH活化/官能化来钯催化的直接芳基化的合适伴侣。发现反应条件和催化剂的性质对选择性具有决定性的影响。使用过量的吡唑（4当量），仅使用0.5-1 mol％的乙酸钯（II）作为催化剂，使用乙酸钾作为碱，并使用DMAc作为溶剂，可在中等至高选择性下促进5-芳基化，产量。已经成功地使用了各种各样的芳基和杂芳基溴化物衍生物。它们的电子和空间特性也影响偶联产物的区域选择性和产率。贫电子和富电子芳基溴化物均获得令人满意的结果，尽管， 芳基化-偶联-钯-吡唑-区域选择性
• N-Heterocyclic M1 Receptor Positive Allosteric Modulators
  申请人：Kuduk Scott D.

  公开号：US20110136863A1

  公开（公告）日：2011-06-09

  The present invention is directed to compounds of formula (I) (I) which are M1 receptor positive allosteric modulators and that are useful in the treatment of diseases in which the M1 receptor is involved, such as Alzheimer's disease, schizophrenia, pain or sleep disorders. The invention is also directed to pharmaceutical compositions comprising the compounds, and to the use of the compounds and compositions in the treatment of diseases mediated by the M1 receptor.

  本发明涉及式(I)的化合物，它们是M1受体正向变构调节剂，可用于治疗M1受体参与的疾病，例如阿尔茨海默病、精神分裂症、疼痛或睡眠障碍。本发明还涉及包含这些化合物的制药组合物，以及使用这些化合物和组合物治疗由M1受体介导的疾病的方法。