dimethyl 2-methyl-6-oxo-1H-pyridine-3,4-dicarboxylate | 29341-16-0

• 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: dimethyl 2-methyl-6-oxo-1H-pyridine-3,4-dicarboxylate
• CAS: 29341-16-0
• 化学式: C₁₀H₁₁NO₅
• 分子量: 225.201
• InChiKey: OQIVPTLUMJDWKS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.3
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  81.7
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  2,4-bis(tert-butyldimethylsilyloxy)-3-azapenta-1,3-diene 、 丁炔二酸二甲酯 以 xylene 为溶剂， 生成 dimethyl 2-methyl-6-oxo-1H-pyridine-3,4-dicarboxylate
  参考文献：
  名称：

  Correlations between carbon-13 nuclear magnetic resonance chemical shifts and reactivities of siloxybutadienes and siloxyazabutadienes in the Diels-Alder reaction with dimethyl acetylenedicarboxylate.

  摘要：

  在硅烷化丁二烯衍生物 (1) 与乙炔二甲酸二甲酯（DMAD）的反应中，建议根据二烯末端亚甲基碳（δ13C-4）的碳-13 核磁共振化学位移，按照以下线性关系预测二烯的反应活性：a) 总电子密度与δ13C-4 的关系；b) ln k 对 1/[ELUMO（DMAD）-EHOMO（二烯）]； c) ln k 对 δ13C-4。二烯的总电子密度以及最高占位分子轨道（HOMOs）和最低未占位分子轨道（LUMOs）的能级是通过修正的忽略二原子重叠（MNDO）法计算得出的。

  DOI：

  10.1248/cpb.38.1832

文献信息

• Correlations between carbon-13 nuclear magnetic resonance chemical shifts and reactivities of siloxybutadienes and siloxyazabutadienes in the Diels-Alder reaction with dimethyl acetylenedicarboxylate.
  作者：Jun-etsu IGARASHI、Yoshinari KAWAKAMI、Toshio KINOSHITA、Sunao FURUKAWA

  DOI：10.1248/cpb.38.1832

  日期：——

  In the reaction of silylated butadiene derivatives (1) with dimethyl acetylenedicarboxylate (DMAD), it is proposed that the reactivities of the dienes can be predicted from the carbon-13 nuclear magnetic resonance chemical shifts of the terminal methylene carbons (δ13C-4) of the dienes based on the following linear relationships, a) total electron densities against δ13C-4; b) ln k against 1/[ELUMO(DMAD)-EHOMO(diene)]; c) ln k against δ13C-4. The total electron densities and energy levels of highest occupied molecular orbitals (HOMOs) and lowest unoccupied molecular orbitals (LUMOs) of the dienes were calculated by the modified neglect of diatomic overlap (MNDO) method.

  在硅烷化丁二烯衍生物 (1) 与乙炔二甲酸二甲酯（DMAD）的反应中，建议根据二烯末端亚甲基碳（δ13C-4）的碳-13 核磁共振化学位移，按照以下线性关系预测二烯的反应活性：a) 总电子密度与δ13C-4 的关系；b) ln k 对 1/[ELUMO（DMAD）-EHOMO（二烯）]； c) ln k 对 δ13C-4。二烯的总电子密度以及最高占位分子轨道（HOMOs）和最低未占位分子轨道（LUMOs）的能级是通过修正的忽略二原子重叠（MNDO）法计算得出的。
• A Diels-Alder route to pyridone and piperidone derivatives
  作者：Francy Sainte、Beatrice Serckx-Poncin、Anne Marie Hesbain-Frisque、Leon Ghosez

  DOI：10.1021/ja00369a049

  日期：1982.3
• SAINTE, F.;SERCKS-PONCIN, B.;HESBAIN-FRISQUE, A. -M.;GHOSEZ, L., J. AMER. CHEM. SOC., 1982, 104, N 5, 1428-1430
  作者：SAINTE, F.、SERCKS-PONCIN, B.、HESBAIN-FRISQUE, A. -M.、GHOSEZ, L.

  DOI：——

  日期：——
• A highly efficient multicomponent synthesis of pyridones and pyrimidones by a [2+2+2] strategy
  作者：Lon Ghosez、Eric Jnoff、Philippe Bayard、Francy Sainte、Renaud Beaudegnies

  DOI：10.1016/s0040-4020(98)01149-1

  日期：1999.3

  :The reaction of N-silylated iminoethers with 2-substituted acetyl chlorides yields activated 2-azadienes. These were shown to react with electron-deficient acetylenic dienophiles to yield pyridones. They also react with quinones to give the corresponding aromatized cycloadducts in good yields. The reaction of a-azadienes with activated nitriles provided a very practical route towards polysubstituted pyrimidones. A multicomponent protocol is reported which combines a N-t-butyldimethylsilyl iminoether, an acetyl chloride derivative and a dienophile in the presence of triethylamine without isolation of any intermediate. This provides an extremely practical and versatile route to various mono- and polycyclic azaaromatics with a predictable substitution pattern. Yields ranged from 43 % to 94 % for the complete sequence. (C) 1999 Elsevier Science Ltd. All rights reserved.