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1,3-bis(4-methoxybenzyl)-4,5-bis(4-methoxyphenyl)imidazolium chloride | 1399982-88-7

中文名称
——
中文别名
——
英文名称
1,3-bis(4-methoxybenzyl)-4,5-bis(4-methoxyphenyl)imidazolium chloride
英文别名
——
1,3-bis(4-methoxybenzyl)-4,5-bis(4-methoxyphenyl)imidazolium chloride化学式
CAS
1399982-88-7
化学式
C33H33N2O4*Cl
mdl
——
分子量
557.089
InChiKey
WZVSLYLOHFCMRZ-UHFFFAOYSA-M
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    3.24
  • 重原子数:
    40.0
  • 可旋转键数:
    10.0
  • 环数:
    5.0
  • sp3杂化的碳原子比例:
    0.18
  • 拓扑面积:
    45.73
  • 氢给体数:
    0.0
  • 氢受体数:
    5.0

反应信息

  • 作为反应物:
    描述:
    bis(1,5-cyclooctadiene)diiridium(I) dichloride 、 1,3-bis(4-methoxybenzyl)-4,5-bis(4-methoxyphenyl)imidazolium chloridesilver(l) oxide 作用下, 以 二氯甲烷 为溶剂, 反应 13.0h, 以83%的产率得到
    参考文献:
    名称:
    骨架改性的N-杂环卡宾铱(I)配合物催化芳基乙腈与伯醇的α-烷基化
    摘要:
    合成并表征了一系列骨架修饰的铱(I)(1d–f)的N-杂环卡宾(NHC)配合物。通过比较在CH 2 Cl 2中原位制备的[IrCl(CO)2(NHC)]配合物的IR羰基拉伸频率,可以评估NHC配体的电子性质。这些新的配合物(1d–f)以及先前制备的1a–c将其用作等摩尔量的伯醇或2-氨基苄醇的芳基乙腈的α-烷基化催化剂。这些配合物的催化活性可以通过修饰NHC配体的N-取代基和主链来控制。NHC-Ir I络合物1f在N原子上带有4-甲氧基苄基取代基,在咪唑的4,5-位带有4-甲氧基苯基,在芳基乙腈与伯醇的α-烷基化反应中表现出最高的催化活性。在空气气氛中,在非常短的反应时间内,通过使用0.1 mol%1f和催化量的KOH(5 mol%),通过借用氢途径以高收率获得了各种α-烷基化的腈和氨基喹啉。
    DOI:
    10.1039/d0dt04082g
  • 作为产物:
    描述:
    4,5-bis(4-methoxyphenyl)-1H-imidazole4-甲氧基氯苄potassium carbonate 作用下, 以 乙腈 为溶剂, 反应 120.0h, 以43.9%的产率得到1,3-bis(4-methoxybenzyl)-4,5-bis(4-methoxyphenyl)imidazolium chloride
    参考文献:
    名称:
    Novel symmetrically p-benzyl-substituted 4,5-diaryl-imidazole N-heterocyclic carbene-silver(I) acetate complexes – Synthesis and biological evaluation
    摘要:
    Symmetrically substituted N-heterocyclic carbene (NHC) precursors 1a-e and 3a-e were synthesised by reacting 4,5-bisaryl-1H-imidazole with 2 equivalents of 4-benzyl bromide, 4-methylbenzyl bromide, 4-methoxybenzyl chloride, 4-methoxycarbonylbenzyl bromide or 4-cyanobenzyl bromide to give the 1,3-bis(p-benzyl substituted)-4,5-bisaryl-imidazolium halides. The NHC-silver(I) acetate complexes (1,3-bisbenzyl-4,5-bisphenyl-imidazole-2-ylidene) silver(I) acetate (2a), (1,3-bis(4-methylbenzyl)-4,5-bisphenyl-imidazole-2-ylidene) silver(I) acetate (2b), (1,3-bis(4-methoxybenzyl)-4,5-bisphenyl-imidazole-2-ylidene) silver(I) acetate (2c), (1,3-bis(4-methoxycarbonylbenzyl)-4,5-bisphenyl-imidazole-2-ylidene) silver(I) acetate (2d), (1,3-bis(4-cyanobenzyl)-4,5-bisphenyl-imidazole-2-ylidene) silver(I) acetate (2e), (1,3-bisbenzyl-4,5-bis(4-methoxyphenyl)-imidazole-2-ylidene) silver(I) acetate (4a), (1,3-bis(4-methylbenzyl)-4,5-bis(4-methoxyphenyl)-imidazole-2-ylidene) silver(I) acetate (4b), (1,3-bis(4-methoxybenzyl)-4,5-bis(4-methoxyphenyl)-imidazole-2-ylidene) silver(I) acetate (4c), (1,3-bis(4-methoxycarbonylbenzyl)-4,5-bis(4-methoxyphenyl)-imidazole-2-ylidene) silver(I) acetate (4d) and (1,3-bis(4-cyanobenzyl)-4,5-bis(4-methoxyphenyl)-imidazole-2-ylidene) silver(I) acetate (4e) were yielded by reacting these NHC precursors with silver(I) acetate. The silver(I) acetate complexes 2d, 2e and 4c were characterised by single crystal X-ray diffraction. Qualitative antibacterial studies against the Gram-negative bacteria Escherichia coli and the Gram-positive bacteria Staphylococcus aureus, using the Kirby-Bauer disc diffusion method were carried out on the ten NHC-silver(I) acetate complexes 2a-e and 4a-e. Also the IC50 values of these ten complexes were determined by an MTT-based assay against the human renal cancer cell line Caki-1 and the human breast cancer cell line MCF-7. The complexes 2a-e and 4a-e revealed the following IC50 values in mu M against Caki-1: 14 (+/- 1), 3.6 (+/- 1.0), 4.2 (+/- 0.5), 33 (+/- 2), 59 (+/- 4), 21 (+/- 1), 21 (+/- 2), 21 (+/- 1), 34 (+/- 2), 46 (+/- 2) and against MCF-7: 5.8 (+/- 0.6), 3.5 (+/- 0.4), 5.4 (+/- 0.3), 28 (+/- 1), 25 (+/- 2), 11 (+/- 2), 5.0 (+/- 0.3), 6.5 (+/- 0.4), 17 (+/- 1), 13 (+/- 1); respectively. (C) 2012 Elsevier B. V. All rights reserved.
    DOI:
    10.1016/j.jorganchem.2012.07.006
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文献信息

  • Unveiling the catalytic nature of palladium-N-heterocyclic carbene catalysts in the α-alkylation of ketones with primary alcohols
    作者:Mamajan Ovezova、Zafer Eroğlu、Önder Metin、Bekir Çetinkaya、Süleyman Gülcemal
    DOI:10.1039/d1dt01704g
    日期:——
    catalysts in the α-alkylation of ketones with primary alcohols using a borrowing hydrogen process and tandem Suzuki–Miyaura coupling/α-alkylation reactions. Among the synthesized Pd-PEPPSI complexes, complex 2c having 4-methoxyphenyl groups at the 4,5-positions and 4-methoxybenzyl substituents on the N-atoms of imidazole exhibited the highest catalytic activity in the α-alkylation of ketones with primary
    我们在此报告了四种具有骨架修饰的 N-杂环卡宾 (NHC) 配体的新型 Pd-PEPPSI 配合物的合成及其作为催化剂在使用借氢工艺和串联 Suzuki-Miyaura 偶联的酮与伯醇的 α-烷基化中的应用/α-烷基化反应。在合成的Pd-PEPPSI配合物中,在4,5-位具有4-甲氧基苯基和咪唑N-原子上具有4-甲氧基苄基取代基的配合物2c在酮与伯醇的α-烷基化中表现出最高的催化活性( 18 个例子),产率高达 95%。此外,复杂的2c被证明是酮串联 Suzuki-Miyaura 偶联/α-烷基化以高产率得到联芳基酮的有效催化剂。通过中毒和热过滤实验验证了本催化系统的多相性质。此外,通过先进的分析技术确定了在 α-烷基化反应过程中 NHC 稳定的 Pd(0) 纳米粒子的形成。
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