N²,N⁶-diallylpyridine-2,6-dicarboxamide

• 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: N²,N⁶-diallylpyridine-2,6-dicarboxamide
• 英文别名: N,N'-diallylpyridine-2,6-dicarboxamide；2-N,6-N-bis(prop-2-enyl)pyridine-2,6-dicarboxamide
• 化学式: C₁₃H₁₅N₃O₂
• 分子量: 245.281
• InChiKey: IZTXUCVDXIGKOW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  18
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.15
• 拓扑面积：
  71.1
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4-碘苯甲醚 、 N²,N⁶-diallylpyridine-2,6-dicarboxamide 在 silver(I) acetate 、 palladium diacetate 作用下， 以 甲苯 为溶剂， 反应 48.0h， 以34%的产率得到
  参考文献：
  名称：

  Pd(II)-Catalyzed, Picolinamide-Assisted, Z-Selective γ-Arylation of Allylamines To Construct Z-Cinnamylamines

  摘要：

  Investigations of Pd(II)-catalyzed, picolinamide-assisted, gamma-C(sp(2))-H activation and Z-selective arylation of allylamines are reported. The reactions of N-allylpicolinamides with various aryl iodides in the presence of the catalyst Pd(OAc)(2) and additive AgOAc have led to the selective gamma-arylation of allylamines to construct various cinnamylamines with moderate to good yields and good to high E/Z ratios. To obtain good E/Z ratios, the Pd(II)-catalyzed arylation reaction of N-allylpicolinamides was probed using different additives, directing groups, and reaction conditions. The Pd(II)-catalyzed arylation of an allylamine containing both gamma-C(sp(2))-(H) and gamma-C(sp(3)) H bonds afforded moderate yields of the gamma-C(sp(2)) H and gamma-C(sp3) H bisarylated cinnamylamines. Although Heck-type gamma-arylations of allylamines have generally afforded the E-cinnamylamines, the bidentate directing group picolinamide-directed arylations of allylamines were found to be Z-selective. A plausible mechanism was proposed for the observed regioselectivity and Z-selective arylation of N-allylpicolinamides. Additionally, the Pd(II)-catalyzed arylation of an N-allyl-5-methylisoxazole-3-carboxamide afforded the E-cinnarnylamines plausibly via a ligand-free Heck-type reaction mechanism.

  DOI：

  10.1021/acs.joc.7b00535
• 作为产物：
  描述：

  吡啶-2,6-二甲酸 在 4-二甲氨基吡啶 、 草酰氯 、 三乙胺 、 N,N-二甲基甲酰胺 作用下， 以 二氯甲烷 为溶剂， 反应 12.0h， 生成 N²,N⁶-diallylpyridine-2,6-dicarboxamide
  参考文献：
  名称：

  Pd(II)-Catalyzed, Picolinamide-Assisted, Z-Selective γ-Arylation of Allylamines To Construct Z-Cinnamylamines

  摘要：

  Investigations of Pd(II)-catalyzed, picolinamide-assisted, gamma-C(sp(2))-H activation and Z-selective arylation of allylamines are reported. The reactions of N-allylpicolinamides with various aryl iodides in the presence of the catalyst Pd(OAc)(2) and additive AgOAc have led to the selective gamma-arylation of allylamines to construct various cinnamylamines with moderate to good yields and good to high E/Z ratios. To obtain good E/Z ratios, the Pd(II)-catalyzed arylation reaction of N-allylpicolinamides was probed using different additives, directing groups, and reaction conditions. The Pd(II)-catalyzed arylation of an allylamine containing both gamma-C(sp(2))-(H) and gamma-C(sp(3)) H bonds afforded moderate yields of the gamma-C(sp(2)) H and gamma-C(sp3) H bisarylated cinnamylamines. Although Heck-type gamma-arylations of allylamines have generally afforded the E-cinnamylamines, the bidentate directing group picolinamide-directed arylations of allylamines were found to be Z-selective. A plausible mechanism was proposed for the observed regioselectivity and Z-selective arylation of N-allylpicolinamides. Additionally, the Pd(II)-catalyzed arylation of an N-allyl-5-methylisoxazole-3-carboxamide afforded the E-cinnarnylamines plausibly via a ligand-free Heck-type reaction mechanism.

  DOI：

  10.1021/acs.joc.7b00535

文献信息

• Fluorocyclisation via I(I)/I(III) catalysis: a concise route to fluorinated oxazolines
  作者：Felix Scheidt、Christian Thiehoff、Gülay Yilmaz、Stephanie Meyer、Constantin G Daniliuc、Gerald Kehr、Ryan Gilmour

  DOI：10.3762/bjoc.14.88

  日期：——

  Herein, we describe a catalytic fluorooxygenation of readily accessible N-allylcarboxamides via an I(I)/I(III) manifold to generate 2-oxazolines containing a fluoromethyl group. Catalysis is conditional on the oxidation competence of Selectfluor®, whilst HF serves as both a fluoride source and Brønsted acid activator. The C(sp3)-F bond of the mono-fluoromethyl unit and the C(sp3)-O bond of the ring

  在本文中，我们描述了经由I（I）/ I（III）歧管容易产生的N-烯丙基羧酰胺的催化氟代氧化反应，以生成含有氟甲基的2-恶唑啉。催化条件取决于Selectfluor®的氧化能力，而HF既可作为氟化物源，又可作为布朗斯台德酸活化剂。单氟甲基单元的C（sp3）-F键与环的C（sp3）-O键成向斜关系排列，从而稳定了与附近的电子富集的σ键（σC- C→σ* CF和σC-H→σ* CO）。通过代表性实例的X射线晶体学分析确定了立体电子薄纱效应的这种表现。鉴于氟在药物研发中的重要性，其调节构象的能力以及2-恶唑啉骨架在自然界中的普遍性，