N,N-(2,6-pyridinediyldimethylidyne)bis(2-hydroxy-4-methylbenzenamine) | 1429408-79-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: N,N-(2,6-pyridinediyldimethylidyne)bis(2-hydroxy-4-methylbenzenamine)
• 英文别名: 2-[[6-[(2-Hydroxy-4-methylphenyl)iminomethyl]pyridin-2-yl]methylideneamino]-5-methylphenol
• CAS: 1429408-79-6
• 化学式: C₂₁H₁₉N₃O₂
• 分子量: 345.401
• InChiKey: PQIMUDHGSVGAQU-UHFFFAOYSA-N

物化性质

• 沸点：
  623.7±55.0 °C(predicted)
• 密度：
  1.18±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  26
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  78.1
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  manganese(II) chloride tetrahydrate 、 N,N-(2,6-pyridinediyldimethylidyne)bis(2-hydroxy-4-methylbenzenamine) 以 乙醇 为溶剂， 反应 5.0h， 以85%的产率得到{[Mn(N,N-(2,6-pyridinediyldimethylidyne)bis(2-hydroxy-4-methylbenzenamine))Cl]*3H₂O}
  参考文献：
  名称：

  Immobilized into Montmorillonite Mn(II) Complexes of Novel Pyridine Schiff-Base Ligands and Their Catalytic Reactivity in Epoxidation of Cyclohexene with O2

  摘要：

  Mild temperature and atmospheric oxygen pressure assisted epoxidation of cyclohexene was achieved with a series of novel montmorillonite-supported Mn(II) complexes of pyridine Schiff-base ligands. The catalysts were characterized by IR, UV-Vis DRS, XRD, SEM and ICP. The heterogeneous catalysts were proved to promote the epoxidation of cyclohexene efficiently, affording the desired product epoxycyclohexane with a yield up to 92 %. The effects of various reaction conditions on the catalytic reaction were optimized. Repeated runs indicated that the catalysts were stable for 3 cycles without noticeable loss of their catalytic activity.SEM images of the samples (a) Montmorillonite and (b) Mn-L-1-Montmorillonite. A series of montmorillonite-supported Mn(II) complexes of Schiff-base ligands were synthesized and characterized by SEM, the catalytic reactivity of epoxidation of cyclohexene have also been investigated .

  DOI：

  10.1007/s10562-013-1002-x
• 作为产物：
  描述：

  2,6-吡啶二甲醇 在 selenium(IV) oxide 作用下， 以 乙醇 为溶剂， 反应 5.5h， 生成 N,N-(2,6-pyridinediyldimethylidyne)bis(2-hydroxy-4-methylbenzenamine)
  参考文献：
  名称：

  新型吡啶席夫碱锰（ii）配合物：环己烯环氧化的合成，表征和催化反应性

  摘要：

  四个新颖的​​吡啶席夫碱衍生自 2,6-吡啶二甲醛并通过元素分析，ESI-MS分析，热分析（TGA），1 H-NMR，IR和UV-vis对合成的和取代的邻-羟基-芳族胺及其锰（II）配合物进行了表征。研究了这些络合物在环己烯自氧化反应中作为催化剂的活性，并优化了各种反应条件对催化反应的影响，从而获得了高达99.6％的转化率和95.0％的选择性。环氧环己烷 在40°C下使用分子氧作为氧化剂6小时 乙腈。结果为环戊烷的环氧化提供了极好的催化剂环己烯在温和的温度和大气氧（O 2）压力下。

  DOI：

  10.1039/c3ra40398j

文献信息

• Epoxidation of cyclohexene with O2 over the composite catalysts of Mn-montmorillonite coordinated with novel Schiff-base ligands
  作者：Yu peng、Zhongying Li、Ruiren Tang

  DOI：10.1039/c3ra42749h

  日期：——

  The catalytic activity of the heterogeneous catalysts of Mn-mont (where mont represents montmorillonite) coordinated with Schiff-base ligands for epoxidation of cyclohexene by O2 under Mukaiyama conditions was studied. The catalysts were characterized by IR, UV-vis DRS, XRD, SEM and ICP. The heterogeneous catalysts were proved to promote the epoxidation of cyclohexene efficiently, the effects of various reaction conditions on the catalytic reaction were optimized and obtained as high as 100% conversion with 90.0% selectivity of epoxycyclohexane at 40 °C in 5 h with molecular oxygen as oxidant in acetonitrile. Repeated runs indicated that the catalysts were stable for at least 3 cycles. Thus, the heterogeneous catalysts of Mn-mont coordinated with Schiff-base ligands were proved to be environmentally friendly and economical for the epoxidation of cyclohexene.

  研究了与席夫碱配体配位的 Mn-mont（其中 mont 代表蒙脱石）异相催化剂在 Mukaiyama 条件下催化 O2 环己烯环氧化的催化活性。催化剂的表征方法包括红外光谱、紫外可见 DRS、X 射线衍射、扫描电镜和 ICP。通过优化各种反应条件对催化反应的影响，证明了异相催化剂能有效促进环己烯的环氧化反应，并以分子氧为氧化剂，在乙腈中催化反应 5 小时，在 40 ℃ 条件下，环氧环己烷的转化率高达 100%，选择性为 90.0%。重复运行表明，催化剂至少在 3 个循环中保持稳定。因此，在环己烯的环氧化反应中，与希夫碱配体配位的锰单质异相催化剂被证明是一种环境友好且经济的催化剂。