methyl 4-(p-tolyl)nicotinate | 149467-74-3

• 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
• 英文名称: methyl 4-(p-tolyl)nicotinate
• 英文别名: Methyl 4-(4-methylphenyl)pyridine-3-carboxylate
• CAS: 149467-74-3
• 化学式: C₁₄H₁₃NO₂
• 分子量: 227.263
• InChiKey: NFYLAUXDXHVHPT-UHFFFAOYSA-N

物化性质

• 沸点：
  355.1±30.0 °C(Predicted)
• 密度：
  1.124±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  39.2
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  methyl 4-(p-tolyl)nicotinate 在 Y-zeolite 作用下， 以 环己烷 为溶剂， 反应 6.0h， 以80%的产率得到7-methyl-2-azafluorenone
  参考文献：
  名称：

  使用沸石合成氮杂芴酮。

  摘要：

  摘要描述了使用沸石环化取代的芳基吡啶 (1a-f & 3a-d) 合成各种氮杂芴酮 (2a-f & 4a-d) 的简便方法。

  DOI：

  10.1080/00397919808007183
• 作为产物：
  描述：

  烟酸甲酯 在 邻四氯苯醌 、 lithium chloride 、 锌 作用下， 以 四氢呋喃 为溶剂， 反应 0.5h， 生成 methyl 4-(p-tolyl)nicotinate
  参考文献：
  名称：

  Syntheses of 2-Azafluorenones from 3-Substituted 4-Arylpyridines

  摘要：

  3-Substituted 4-arylpyridines (5a-i) were synthesized in good yields by reaction of mixed copper, zinc aryl organometallics (2a-e) with 1-ethoxycarbonyl-pyridinium chlorides (1a-d) followed by o-chloranil oxidation under reflux in toluene. The 4-arylpyridines (5a-i) are obtained predominantly. Having compounds (5a-i) in hand, a convenient method was developed for the synthesis of 2-azafluorenones (7a-f) by using cyclization of 4-arylpyridines (5a-i) with polyphosphoric acid.

  DOI：

  10.3987/com-92-6199

文献信息

• Phosphonium Salts as Pseudohalides: Regioselective Nickel‐Catalyzed Cross‐Coupling of Complex Pyridines and Diazines
  作者：Xuan Zhang、Andrew McNally

  DOI：10.1002/anie.201704948

  日期：2017.8.7

  traditional cross‐coupling methods. An alternative approach is presented where pyridines and diazines are converted into heteroaryl phosphonium salts and coupled with aryl boronic acids. Nickel catalysts are unique for selective heteroaryl transfer, and the reaction has a broad substrate scope that includes complex pharmaceuticals. Phosphonium ions also display orthogonal reactivity in cross‐couplings compared

  杂双芳基化合物是重要的药效团，很难通过传统的交叉偶联方法制备。提出了一种替代方法，其中将吡啶和二嗪转化为杂芳基phospho盐并与芳基硼酸偶联。镍催化剂对于选择性杂芳基转移是独特的，该反应具有广泛的底物范围，包括复杂的药物。与卤化物相比，离子在交叉偶联中也表现出正交反应性，从而实现化学选择性的钯和镍催化的偶联序列。
• [EN] PYRIDINE COMPOUNDS AS INHIBITORS OF DIPEPTIDYL PEPTIDASE IV<br/>[FR] COMPOSES PYRIDINES UTILISES COMME INHIBITEURS DE DIPEPTIDYLE PEPTIDASE IV
  申请人：TAKEDA PHARMACEUTICAL

  公开号：WO2005042488A1

  公开（公告）日：2005-05-12

  A compound represented by the formula wherein R1 and R2 are the same or different and each is an optionally substituted hydrocarbon group or an optionally substituted hydroxy group; R3 is an optionally substituted aromatic group; R4 is an optionally substituted amino group; L is a divalent chain hydrocarbon group; Q is a bond or a divalent chain hydrocarbon group; and X is a hydrogen atom, a cyano group, a nitro group, an acyl group, a substituted hydroxy group, an optionally substituted thiol group, an optionally substituted amino group or an optionally substituted cyclic group; provided that when X is an ethoxycarbonyl group, then Q is a divalent chain hydrocarbon group. The compound has a peptidase inhibitory action, is useful as an agent for the prophylaxis or treatment of diabetes and the like, and is superior in efficacy, duration of action, specificity, lower toxicity and the like.

  该化合物的化学式表示为其中R1和R2相同或不同，每个都是可选择取代的碳氢基团或可选择取代的羟基团；R3是可选择取代的芳香基团；R4是可选择取代的氨基团；L是二价链状碳氢基团；Q是键或二价链状碳氢基团；X是氢原子、氰基、硝基、酰基、取代的羟基团、可选择取代的硫醇基团、可选择取代的氨基团或可选择取代的环状基团；但当X是乙氧羰基团时，Q为二价链状碳氢基团。该化合物具有肽酶抑制作用，可用作糖尿病等疾病的预防或治疗药物，并在功效、作用持续时间、特异性、毒性较低等方面具有优越性。
• Substrate Control in the Gold(I)-Catalyzed Cyclization of β<i>-</i>Propargylamino Acrylic Esters and Further Transformations of the Resultant Dihydropyridines
  作者：Jiří Mikušek、Petr Matouš、Eliška Matoušová、Martin Janoušek、Jiří Kuneš、Milan Pour

  DOI：10.1002/adsc.201600412

  日期：2016.9.15

  β‐propargylamino acrylic esters with a push‐pull olefinic bond afforded good to high yields of dihydropyridines upon treatment with 5% tris(2‐furyl)phosphine‐gold(I) chloride/silver(I) tetrafluoroborate [(TFP)AuCl/AgBF4] in anhydrous benzene. Carbamate and sulfonyl groups were employed for nitrogen protection. On a model enyne, the p‐methoxybenzenesulfonyl (MBS) group was found to be a better protective

  N-保护的带有推挽式烯烃键的β-炔丙基氨基丙烯酸酯，在用5％的三（2-呋喃基）膦-氯化金（I）/四氟硼酸银（I）处理后，可提供高至高产率的二氢吡啶。在无水苯中的AuCl / AgBF 4 ]。氨基甲酸酯和磺酰基用于氮保护。在模型恩尼（Enyne）上，p就环化收率以及消除相应2,3,4-三取代吡啶的收率而言，发现甲氧基苯磺酰基（MBS）基比甲苯磺酰基更好。Boc保护的二氢吡啶在环化条件下进行了部分脱保护/氧化，这使得相应吡啶的更直接，一锅法制备成为可能。在另一个应用中，将被保护为稳定的甲氧基氨基甲酸酯的适当取代的衍生物进行催化氢化，得到已知的帕罗西汀前体。烯炔环化的化学选择性（二氢吡啶与。吡咯）除其他因素外，还受C-3取代的支配。当C-3未取代时，无论催化剂/条件如何，均以二氢吡啶为唯一产物。
• PYRIDINE COMPOUNDS AS INHIBITORS OF DIPEPTIDYL PEPTIDASE IV
  申请人：Takeda Pharmaceutical Company Limited

  公开号：EP1678138A1

  公开（公告）日：2006-07-12
• Syntheses of 2-Azafluorenones from 3-Substituted 4-Arylpyridines
  作者：Min-Jen Shiao、Kang-Hsiuan Liu、Pen-Yuan Lin

  DOI：10.3987/com-92-6199

  日期：——

  3-Substituted 4-arylpyridines (5a-i) were synthesized in good yields by reaction of mixed copper, zinc aryl organometallics (2a-e) with 1-ethoxycarbonyl-pyridinium chlorides (1a-d) followed by o-chloranil oxidation under reflux in toluene. The 4-arylpyridines (5a-i) are obtained predominantly. Having compounds (5a-i) in hand, a convenient method was developed for the synthesis of 2-azafluorenones (7a-f) by using cyclization of 4-arylpyridines (5a-i) with polyphosphoric acid.