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2-cyclohexyl-1-(cyclohexylmethyl)-1H-benzo[d]imidazole

中文名称
——
中文别名
——
英文名称
2-cyclohexyl-1-(cyclohexylmethyl)-1H-benzo[d]imidazole
英文别名
2-cyclohexyl-1-(cyclohexylmethyl)-1H-benzimidazole;2-Cyclohexyl-1-(cyclohexylmethyl)benzimidazole;2-cyclohexyl-1-(cyclohexylmethyl)benzimidazole
2-cyclohexyl-1-(cyclohexylmethyl)-1H-benzo[d]imidazole化学式
CAS
——
化学式
C20H28N2
mdl
——
分子量
296.456
InChiKey
OHGMCKXTLCKHCK-UHFFFAOYSA-N
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):
    5.9
  • 重原子数:
    22
  • 可旋转键数:
    3
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.65
  • 拓扑面积:
    17.8
  • 氢给体数:
    0
  • 氢受体数:
    1

反应信息

  • 作为产物:
    描述:
    N,N′-bis(cyclohexylmethyl)benzene-1,2-diamine 在 iron(III) chloride hexahydrate 作用下, 以 N,N-二甲基甲酰胺 为溶剂, 反应 14.0h, 以67%的产率得到2-cyclohexyl-1-(cyclohexylmethyl)-1H-benzo[d]imidazole
    参考文献:
    名称:
    铁的异构异构邻苯二胺底物的铁催化交叉脱氢偶联反应制备1,2-二取代苯并咪唑。
    摘要:
    苯并咪唑在自然界,药物和材料中很常见。存在制备2-芳基苯并咪唑的许多策略。在这项工作中,通过铁催化的氧化偶联,由各种单取代和二取代的邻苯二胺(OPD)制备1,2-二取代的苯并咪唑。具体而言,O 2和FeCl 3·6H 2 O催化二芳基甲基和二烷基苯并咪唑前体的交叉脱氢偶联和芳构化。N,N′-二取代-OPD底物比其N,N-二取代的异构体具有更高的反应活性,这似乎与其相对于与Fe3 +络合和电荷转移的倾向有关。该反应还将N-单取代的OPD底物转化为2-取代的苯并咪唑。然而,贫电子底物通过分子间亚氨基转移产生1,2-二取代的苯并咪唑。动能 试剂和光谱学(紫外可见和EPR)研究表明,这种机制涉及金属-底物的络合,电荷转移和有氧转化,涉及高价Fe(IV)中间体。总的来说,证明了比较可持续和有效合成1,2-二取代苯并咪唑的比较策略。
    DOI:
    10.1021/acs.joc.9b02714
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文献信息

  • Synthesis of functionalized benzimidazoles and quinoxalines catalyzed by sodium hexafluorophosphate bound Amberlite resin in aqueous medium
    作者:Pranab Ghosh、Amitava Mandal
    DOI:10.1016/j.tetlet.2012.09.045
    日期:2012.11
    for the selective synthesis of 1,2-disubstituted benzimidazoles and quinoxalines in water–methanol (1:1) mixture with the aid of resin bound hexafluorophosphate ion as catalyst is reported. The method is also effective for the incorporation of quinoxaline nucleus at the A ring of pentacyclic triterpenoid, friedelin. A plausible mechanism for the formation of disubstituted benzimidazole has also been suggested
    报道了一种非常简单,环保和通用的方法,该方法可通过树脂结合的六氟磷酸根离子作为催化剂,在水-甲醇(1:1)混合物中选择性合成1,2-二取代的苯并咪唑和喹喔啉。该方法对于在五环三萜类化合物Friedelin的A环上引入喹喔啉核也是有效的。还已经提出了形成二取代的苯并咪唑的合理机理。
  • Selectivity control during the solid supported protic acids catalysed synthesis of 1,2-disubstituted benzimidazoles and mechanistic insight to rationalize selectivity
    作者:Dinesh Kumar、Damodara N. Kommi、Rajesh Chebolu、Sanjeev K. Garg、Raj Kumar、Asit K. Chakraborti
    DOI:10.1039/c2ra21994h
    日期:——
    Selectivity control during the formation of 1,2-disubstituted benzimidazoles has been achieved for the reaction of o-phenylenediamine with aldehydes in the presence of solid supported protic acids as catalysts and choosing an appropriate reaction medium. Perchloric acid adsorbed on silica-gel (HClO4–SiO2) was found to be the most effective catalyst system for the synthesis of 1,2-disubstituted benzimidazoles in EtOH at rt. Apart from the catalyst and solvent, the electronic and steric factors of the aldehyde and the electronic factor of the o-phenylenediamine are also significant contributory factors in dictating the selectivity. An understanding of the mechanistic course of the formation of the 1,2-disubstituted benzimidazoles has been outlined that would rationalise the origin of selectivity control under the set experimental parameters.
    在形成1,2-二取代苯并咪唑的反应中,已经实现了选择性控制,该反应是对邻苯二胺与醛类在固态酸催化剂的存在下进行的,同时选择了合适的反应介质。研究发现,吸附在硅胶上的高氯酸(HClO4–SiO2)是合成1,2-二取代苯并咪唑在室温下使用乙醇的最有效催化体系。除了催化剂和溶剂之外,醛的电子和空间因素以及邻苯二胺的电子因素也是决定选择性的显著因素。对于1,2-二取代苯并咪唑的形成机制的理解也已被概述,这将有助于解释在设定实验参数下选择性控制的来源。
  • Catalytic role of sodium dodecyl sulfate: Selective synthesis of 1, 2-disubstituted benzimidazoles in water
    作者:Pranab Ghosh、Amitava Mandal
    DOI:10.1016/j.catcom.2011.01.005
    日期:2011.3
    A simple and efficient procedure for the synthesis of 1, 2-disubstituted benzimidazoles has been developed by a one-pot reaction of o-phenylenediamine with both aromatic and aliphatic aldehydes in the presence of sodium dodecyl sulfate in aqueous medium at room temperature in open air without any organic solvent. The surfactant is recycled. A plausible mechanistic approach has also been suggested.
    在室温下,在水性介质中,在十二烷基硫酸钠存在下,邻苯二胺与芳族和脂族醛同时进行一锅反应,已开发出一种简单有效的合成1,2-二取代苯并咪唑的方法。没有任何有机溶剂。表面活性剂被回收。还提出了一种可行的机械方法。
  • Selective synthesis of benzimidazoles and benzodiazepines catalyzed by Brønsted Acid/ base-cooperative Titanocene dichloride
    作者:Mengyuan Zhuang、Li Tu、Ya Wu、Yajun Jian、Yanyan Wang、Weiqiang Zhang、Huaming Sun、Ziwei Gao
    DOI:10.1016/j.mcat.2022.112181
    日期:2022.5
    o-phenylenediamine and carbonyl compounds by Brønsted acid/base assisted titanocene dichloride. Mechanism research including NMR and ESI-MS analyses and control experiments elucidated the new catalytic species formed by Cp2TiCl2 and the combination of titanocene Lewis acid with Brønsted acid/base was responsible for selective transformations of aldehyde and ketone with o-phenylenediamine into benzimidazole
    苯并咪唑和苯二氮卓类化合物是由邻苯二胺和羰基化合物通过布朗斯台德酸/碱辅助二氯化二茂钛选择性合成的。包括 NMR 和 ESI-MS 分析和控制实验在内的机理研究阐明了由 Cp 2 TiCl 2形成的新催化物质,二茂钛路易斯酸与布朗斯台德酸/碱的组合负责将醛和酮与邻苯二胺选择性转化为苯并咪唑和苯二氮卓类药物。
  • Highly selective synthesis of libraries of 1,2-disubstituted benzimidazoles using silica gel soaked with ferric sulfate
    作者:Susmita Paul、Basudeb Basu
    DOI:10.1016/j.tetlet.2012.05.129
    日期:2012.8
    An efficient and highly selective synthesis of functionalized 1,2-benzimidazoles has been developed under solvent-free conditions at ambient temperature using eco-friendly ferric sulfate soaked with silica [iron(III)sulfate–silica]. Recycling of the solid support up to six runs was investigated with appreciable yield and selectivity of the product.
    在无溶剂条件下,使用浸有二氧化硅[硫酸铁(III)-二氧化硅]的环保型硫酸铁,在无溶剂条件下开发了一种高效且高度选择性的功能化1,2-苯并咪唑合成方法。研究了多达六次运行的固相支持物的回收率,并且产品具有明显的收率和选择性。
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