1,5-bis(1-benzimidazolyl)-3-thiapentane | 156147-19-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并咪唑类
• 英文名称: 1,5-bis(1-benzimidazolyl)-3-thiapentane
• 英文别名: 1-[2-[2-(Benzimidazol-1-yl)ethylsulfanyl]ethyl]benzimidazole
• CAS: 156147-19-2
• 化学式: C₁₈H₁₈N₄S
• 分子量: 322.434
• InChiKey: JDABWLPCPNCPBH-UHFFFAOYSA-N

物化性质

• 熔点：
  172-174 °C(Solv: toluene (108-88-3))
• 沸点：
  559.2±60.0 °C(Predicted)
• 密度：
  1.27±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  23
• 可旋转键数：
  6
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  60.9
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  1,5-bis(1-benzimidazolyl)-3-thiapentane 在 氢氧化钾 作用下， 以 丙醇 、 硝基甲烷 为溶剂， 反应 1.5h， 生成 5-Oxa-18-thia-2,8,15,21-tetrazatricyclo[20.4.0.09,14]hexacosa-1(26),9,11,13,22,24-hexaene
  参考文献：
  名称：

  二苯并四氮杂冠醚：基于邻苯二甲胺的新冠醚族†

  摘要：

  二苯并四氮杂（DBTA）冠醚具有两个邻-苯二胺部分。它们是二苯并冠醚相转移催化剂的同系物，由苯并咪唑与低聚（乙二醇）二氯化物和低聚（乙二醇）二甲苯磺酸酯的缩合反应制得。制备了环大小为18冠6至42冠14的化合物。另外，各种改变的苯甲二唑被用于生产具有修饰的取代基和醚桥的DBTA冠醚，以及苯并咪唑烷冠醚。事实证明，此处提出的合成方法是通向冠醚新家族的便捷途径，基于苯并咪唑，其总收率可达48％。闭环步骤的收率通常较高，在51％至94％的范围内，而无需高稀释条件。N-有机基）化合物。进行了苦味酸盐提取研究以确定相转移催化能力。碱金属离子的萃取效率低于二苯并18-冠-6的萃取效率。其他金属离子的效率较高，对Pb 2+具有一定的选择性。四（N-甲基）DBTA-18-crown-6的提取效率通常高于其N-H类似物，但选择性较低。

  DOI：

  10.1021/jo050281z
• 作为产物：
  描述：

  苯并咪唑 、 bis (2-chloroethyl) sulphide 在 水 、 caesium carbonate 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 以47%的产率得到1,5-bis(1-benzimidazolyl)-3-thiapentane
  参考文献：
  名称：

  二苯并四氮杂冠醚：基于邻苯二甲胺的新冠醚族†

  摘要：

  二苯并四氮杂（DBTA）冠醚具有两个邻-苯二胺部分。它们是二苯并冠醚相转移催化剂的同系物，由苯并咪唑与低聚（乙二醇）二氯化物和低聚（乙二醇）二甲苯磺酸酯的缩合反应制得。制备了环大小为18冠6至42冠14的化合物。另外，各种改变的苯甲二唑被用于生产具有修饰的取代基和醚桥的DBTA冠醚，以及苯并咪唑烷冠醚。事实证明，此处提出的合成方法是通向冠醚新家族的便捷途径，基于苯并咪唑，其总收率可达48％。闭环步骤的收率通常较高，在51％至94％的范围内，而无需高稀释条件。N-有机基）化合物。进行了苦味酸盐提取研究以确定相转移催化能力。碱金属离子的萃取效率低于二苯并18-冠-6的萃取效率。其他金属离子的效率较高，对Pb 2+具有一定的选择性。四（N-甲基）DBTA-18-crown-6的提取效率通常高于其N-H类似物，但选择性较低。

  DOI：

  10.1021/jo050281z

文献信息

• Non-toxic corrosion-protection pigments based on manganese
  申请人：——

  公开号：US20040011252A1

  公开（公告）日：2004-01-22

  Corrosion-inhibiting pigments based on manganese are described that contain a trivalent or tetravalent manganese/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent manganese ion to form a compound that is sparingly soluble, exhibits low solubility, or is insoluble in water, depending upon the intended usage. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Manganese/valence stabilizer combinations are chosen based on the well-founded principles of manganese coordination chemistry. Many manganese-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium or tetravalent lead systems. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

  以锰为基础的缓蚀颜料含有三价或四价锰/价稳定剂复合物。一种无机或有机材料可用于稳定三价或四价锰离子，从而形成一种可少量溶解、溶解度低或不溶于水的化合物，具体取决于预期用途。选择特定的稳定剂是为了控制三价锰或四价锰在遇水时的释放率，并调整粉末在所选粘合剂体系中用作颜料时的相容性。稳定剂还可以改变成型粉末的加工和处理特性。锰/价稳定剂组合的选择是基于锰配位化学的基本原理。文中介绍了许多锰价稳定剂组合，其性能与传统的六价铬或四价铅体系相当。需要强调的是，提供本摘要是为了符合要求提供摘要的规则，以便检索者或其他读者快速确定技术公开的主题。提交本摘要的前提是，本摘要不用于解释或限制权利要求的范围或含义。
• Non-toxic corrosion-protection pigments based on rare earth elements
  申请人：——

  公开号：US20040104377A1

  公开（公告）日：2004-06-03

  A corrosion-inhibiting pigment comprising a rare earth element and a valence stabilizer combinded to form a rare earth/valence stabilizer complex. The rare earth element is selected from cerium, terbium, praseodymium, or a combination thereof, and at least one rare earth element is in the tetravalent oxidation state. An inorganic or organic material is used to stabilize the tetravalent rare earth ion to form a compound that is sparingly soluble in water. Specific stabilizers are chosen to control the release rate of tetravalent cerium, terbium, or praseodymium during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Many rare earth-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium systems.

  一种缓蚀颜料，由稀土元素和价态稳定剂结合形成稀土/价态稳定剂复合物。稀土元素选自铈、铽、镨或它们的组合，至少有一种稀土元素处于四价氧化态。使用无机或有机材料来稳定四价稀土离子，以形成稀溶于水的化合物。选择特定的稳定剂是为了控制四价铈、铽或镨在遇水时的释放率，并调整粉末在所选粘合剂体系中用作颜料时的相容性。稳定剂还可以改变成型粉末的加工和处理特性。本文介绍了许多稀土-价稳定剂组合，其性能可与传统的六价铬体系媲美。
• Non-toxic corrosion-protection rinses and seals based on rare earth elements
  申请人：——

  公开号：US20040016910A1

  公开（公告）日：2004-01-29

  Rinsing or sealing solutions comprising a rare earth element and a valence stabilizer for barrier films. The treated films contain a rare earth/valence stabilizer complex. The rare earth element is selected from cerium, praseodymium, terbium, or combinations thereof, and at least one rare earth element is in the tetravalent oxidation state. The rinsing or sealing solution may also contain an optional preparative or solubility control agent. The oxidized rare earth element is present in the coating in a “sparingly soluble” form. The valence stabilizers can be either inorganic or organic in nature. A number of rare earth/valence stabilizer combinations that match the performance of conventional hexavalent chromium systems are presented.
• NON-TOXIC CORROSION-PROTECTION PIGMENTS BASED ON MANGANESE
  申请人：Sturgill A. Jeffrey

  公开号：US20070149673A1

  公开（公告）日：2007-06-28

  Corrosion-inhibiting pigments based on manganese are described that contain a trivalent or tetravalent manganese/valence stabilizer complex. An inorganic or organic material is used to stabilize the trivalent or tetravalent manganese ion to form a compound that is sparingly soluble, exhibits low solubility, or is insoluble in water, depending upon the intended usage. Specific stabilizers are chosen to control the release rate of trivalent or tetravalent manganese during exposure to water and to tailor the compatibility of the powder when used as a pigment in a chosen binder system. Stabilizers may also modify the processing and handling characteristics of the formed powders. Manganese/valence stabilizer combinations are chosen based on the well-founded principles of manganese coordination chemistry. Many manganese-valence stabilizer combinations are presented that can equal the performance of conventional hexavalent chromium or tetravalent lead systems. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 C.F.R. § 1.72(b).
• US7291217B2
  申请人：——

  公开号：US7291217B2

  公开（公告）日：2007-11-06