N-(4-methoxy-2-methylphenyl)picolinamide | 933449-52-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: N-(4-methoxy-2-methylphenyl)picolinamide
• CAS: 933449-52-6
• 化学式: C₁₄H₁₄N₂O₂
• 分子量: 242.277
• InChiKey: RCKSMVNYVLTACI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.65
• 重原子数：
  18.0
• 可旋转键数：
  3.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  51.22
• 氢给体数：
  1.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  N-(4-methoxy-2-methylphenyl)picolinamide 在 potassium iodide N-溴代丁二酰亚胺(NBS) 、 potassium carbonate 、 过氧化苯甲酰 作用下， 以 四氯化碳 、 N,N-二甲基甲酰胺 为溶剂， 生成 N-{2-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]-4-methoxyphenyl}pyridine-2-carboxamide
  参考文献：
  名称：

  Challenges in the development of mGluR5 positive allosteric modulators: The discovery of CPPHA

  摘要：

  This Letter describes, for the first time, the synthesis and SAR, developed through an iterative analog library approach, that led to the discovery of the positive allosteric modulator (PAM) of the metabotropic glutamate receptor mGluR5 CPPHA. Binding to a unique allosteric binding site distinct from other mGluR5 PAMs, CPPHA has been the focus of numerous pharmacology studies by several laboratories.

  DOI：

  10.1016/j.bmcl.2006.11.081
• 作为产物：
  描述：

  2-吡啶甲酰氯 、 2-甲基-4-甲氧基苯胺 在 N,N-(diisopropyl)aminomethylpolystyrene 作用下， 以 二氯甲烷 为溶剂， 生成 N-(4-methoxy-2-methylphenyl)picolinamide
  参考文献：
  名称：

  Challenges in the development of mGluR5 positive allosteric modulators: The discovery of CPPHA

  摘要：

  This Letter describes, for the first time, the synthesis and SAR, developed through an iterative analog library approach, that led to the discovery of the positive allosteric modulator (PAM) of the metabotropic glutamate receptor mGluR5 CPPHA. Binding to a unique allosteric binding site distinct from other mGluR5 PAMs, CPPHA has been the focus of numerous pharmacology studies by several laboratories.

  DOI：

  10.1016/j.bmcl.2006.11.081

文献信息

• Enantioselective Synthesis of Atropisomeric Anilides via Pd(II)-Catalyzed Asymmetric C–H Olefination
  作者：Qi-Jun Yao、Pei-Pei Xie、Yong-Jie Wu、Ya-Lan Feng、Ming-Ya Teng、Xin Hong、Bing-Feng Shi

  DOI：10.1021/jacs.0c09400

  日期：2020.10.21

  tremendous attention as a novel class of chiral compounds possessing restricted rotation around an N-aryl chiral axis. However, in sharp contrast to the well-studied synthesis of biaryl atropisomers, the catalytic asymmetric synthesis of chiral anilides remains a daunting challenge, largely due to the higher degree of rotational freedom compared to their biaryl counterparts. Here we describe a highly

  阻转异构苯胺作为一类新的手性化合物受到极大的关注，其绕 N-芳基手性轴旋转受限。然而，与经过充分研究的联芳基阻转异构体的合成形成鲜明对比的是，手性苯胺的催化不对称合成仍然是一项艰巨的挑战，这主要是由于与联芳基对应物相比具有更高的旋转自由度。在这里，我们描述了使用容易获得的 L-焦谷氨酸作为手性配体，通过 Pd(II) 催化的阻转选择性 CH 烯化反应高效催化不对称合成阻转异构苯胺。在温和的条件下，以高产率（高达 99% 的产率）和出色的立体诱导（高达 >99% ee）制备了广泛的阻转异构体苯胺。实验研究表明，这些苯胺阻转异构体对外消旋化的阻转性依赖于空间和电子效应。进行了实验和计算研究以阐明反应机理和速率决定步骤。DFT 计算表明，氨基酸配体畸变是 CH 键活化步骤中的对映选择性的原因。已经证明了苯胺阻转异构体作为新型手性配体在 Rh(III) 催化的不对称共轭加成和路易斯碱催化剂在醛的对
• Palladium catalyzed acetoxylation of benzylic C–H bonds using a bidentate picolinamide directing group
  作者：Tao Cheng、Weiyu Yin、Yi Zhang、Yingnan Zhang、Yong Huang

  DOI：10.1039/c3ob42196a

  日期：——

  A general palladium catalyzed acetoxylation of benzylic C–H bonds has been developed. Picolinamides serve as an excellent directing group for the C–H activation of benzylic methyls. A wide range of 2-amino benzyl alcohol analogues were synthesized in good yields. The products demonstrated broad synthetic utilities toward various benzo-fused heterocycles. Mechanistic studies revealed the key rate-limiting

  已经开发出了一般的钯催化的苄基CH键的乙酰氧基化反应。吡啶甲酰胺是苄基甲基C–H活化的极好指导基团。以高产率合成了多种2-氨基苄醇类似物。该产品对各种苯并稠合杂环具有广泛的合成用途。机理研究表明，关键的限速C–H插入步骤可能受母体芳烃取代模式的影响。
• Palladium-Catalyzed Regioselective Insertion of Carbenes into γ-C(sp3)–H Bonds of Aliphatic Amines
  作者：Peng Zhang、Cheng-xin Li、ShihaoZhi Wang、Xue-jing Zhang、Ming Yan

  DOI：10.1021/acs.orglett.4c00038

  日期：2024.4.5

  migratory insertion of carbenes into distal γ-C(sp3)–H bonds of aliphatic amines has been successfully developed. The synergistic interplay among a palladium catalyst, picolinamide directing group, a carefully selected base additive, and an essential ligand proved crucial in achieving high yields. These findings hold significant value for advancing the exploration of regioselective carbene insertions into

  已成功开发出卡宾迁移插入脂肪胺远端 γ-C(sp 3 )–H 键的方法。钯催化剂、吡啶酰胺导向基团、精心选择的基础添加剂和重要配体之间的协同相互作用被证明对于实现高产率至关重要。这些发现对于推进区域选择性卡宾插入非活化 C(sp 3 )–H 键的探索具有重要价值。
• Pd-Catalyzed Arylation/Oxidation of Benzylic C–H Bond
  作者：Yongju Xie、Yuzhu Yang、Lehao Huang、Xunbin Zhang、Yuhong Zhang

  DOI：10.1021/ol300037p

  日期：2012.3.2

  A palladium-catalyzed benzylic C-H arylation/oxidation reaction leading to diaryl ketones has been accomplished. The indispensable role of the bidentate system is disclosed for this sequential process. This chemistry offers a direct new access to a range of diarylketones.