N-(n-octadecyl)pyridinium bromide | 7552-23-0

• 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: N-(n-octadecyl)pyridinium bromide
• 英文别名: N-octadecylpyridinium bromide；octadecylpyridinium bromide；1-octadecyl-pyridinium; bromide；1-Octadecyl-pyridinium; Bromid；N-Octadecanylpyridinium-bromid；1-Octadecylpyridiniumbromid；1-Octadecylpyridin-1-ium bromide；1-octadecylpyridin-1-ium;bromide
• CAS: 7552-23-0
• 化学式: Br*C₂₃H₄₂N
• 分子量: 412.497
• InChiKey: JDASKPRUFDKACZ-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  4.24
• 重原子数：
  25
• 可旋转键数：
  17
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  3.9
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  potassium tetrachloroplatinate(II) 、 tetrapotassium hexaselenodistannate 、 N-(n-octadecyl)pyridinium bromide 以 formamide 为溶剂， 生成 (C18H38C5H4N)2PtSn2Se6, cubic
  参考文献：
  名称：

  Single-Crystal Mesostructured Semiconductors with Cubic Ia3̄d Symmetry and Ion-Exchange Properties

  摘要：

  If the full scientific and technological potential of mesostructured materials is to be achieved, systems with continuous domains in the form of single crystals or films must be prepared. Here we report a reliable and facile system for making large single-crystal particles of chalcogenido mesostructured materials with a highly organized cubic structure, accessible pore structure, and semiconducting properties. Building blocks with square planar bonding topology, Pt2+ and [Sn2Se6](4-), in combination with long-chain pyridinium surfactants (CnPyBr, n = 18, 20) favor faceted single-crystal particles with the highest possible space group symmetry la (3) over bard This is an important step toward developing large single-domain crystalline mesostructured semiconductors and usable natural self-assembled antidot array systems. The tendency toward cubic symmetry is so strong that the materials assemble readily under experimental conditions that can tolerate considerable variation and form micrometer-sized rhombic dodecahedral cubosome particles. The c-CnPyPtSnSe materials are the first to exhibit reversible ion-exchange properties. The surfactant molecules can be ion-exchanged reversibly and without loss of the cubic structure and particle morphology. The cubosomes possess a three-dimensional open Pt-Sn-Se framework with a low-energy band gap of similar to1.7 eV.

  DOI：

  10.1021/ja026367g
• 作为产物：
  描述：

  吡啶 、 硬脂基溴 生成 N-(n-octadecyl)pyridinium bromide
  参考文献：
  名称：

  溶液平衡在金属硫属化物介观结构定向组装中的重要性

  摘要：

  我们描述了由分子单元 [Ge2Se6](4-) 和 [GeSe4](4-) 制备的新型纳米结构 Pt/Ge/Se 材料，并在表面活性剂胶束的存在下连接 Pt(2+) 离子。X 射线衍射结合透射电子显微镜图像揭示了六角孔的对称性。通过多核 NMR 光谱和快速原子轰击 (FAB) 质谱研究了这些构件的溶剂依赖性和溶液形态，结果表明 [Ge4Se10](4-)、[Ge4Se10](4-)、[ Ge2Se6](4-) 和 [GeSe4](4-) 在水和甲酰胺中。这导致多个 Ge/Se 阴离子被结合到细观结构材料中，这得到了拉曼和红外光谱数据的支持。水和甲酰胺溶液中存在多种结构单元可能有利于具有良好孔序的介孔结构金属硫属元素化物的组装。表面活性剂头基和链长的系统变化调节介观结构的光电特性。Pt/Ge/Se 材料在 1.24-1.97 eV 范围内显示出尖锐的带隙跃迁。最后，这些材料表现出可逆的离子交

  DOI：

  10.1021/ja800741h

文献信息

• Preparation of the Pyridinium Salts Differing in the Length of the N-Alkyl Substituent
  作者：Jan Marek、Petr Stodulka、Jiri Cabal、Ondrej Soukup、Miroslav Pohanka、Jan Korabecny、Kamil Musilek、Kamil Kuca

  DOI：10.3390/molecules15031967

  日期：——

  Quaternary pyridinium salts with chains ranging from C8 to C20 belong in the large group of cationic surfactants. In this paper, the preparation of such cationic surface active agents based on the pyridinium moiety and differing in the length of the N-alkyl chain is described. Additionally, HPLC technique was established to distinguish each prepared pyridinium analogue. This study represents universal

  链为 C8 至 C20 的季吡啶盐属于一大类阳离子表面活性剂。在本文中，描述了这种基于吡啶鎓部分和不同N-烷基链长度的阳离子表面活性剂的制备。此外，建立了 HPLC 技术来区分每种制备的吡啶类似物。本研究代表了制备和鉴定季吡啶类洗涤剂的通用方法。
• Platinum Chalcogenido MCM-41 Analogues. High Hexagonal Order in Mesostructured Semiconductors Based on Pt²⁺ and [Ge₄Q₁₀]^4- (Q = S, Se) and [Sn₄Se₁₀]^4- Adamantane Clusters
  作者：Pantelis N. Trikalitis、Krishnaswamy K. Rangan、Mercouri G. Kanatzidis

  DOI：10.1021/ja017245b

  日期：2002.3.1

  platinum-germanium chalcogenide and platinum-tin selenide frameworks were prepared by linking corresponding [Ge(4)Q(10)](4)(-) (Q = S, Se) and [Sn(4)Se(10)](4)(-) clusters with Pt(2+) ions. The non-oxidic honeycombs designated as C(n)PyPtGeQ and C(n)PyPtSnSe were templated by the lyotropic liquid-crystalline phase of alkylpyridinium surfactant [C(n)H(2)(n)(+1)NC(5)H(5)]Br (C(n)PyBr) with n= 12, 14, 16, 18

  通过连接相应的 [Ge(4)Q(10)](4)(-) (Q = S, Se) 和 [Sn(4)Se (10)](4)(-) 簇与 Pt(2+) 离子。命名为 C(n)PyPtGeQ 和 C(n)PyPtSnSe 的非氧化蜂窝由烷基吡啶表面活性剂 [C(n)H(2)(n)(+1)NC(5) 的溶致液晶相模板化H(5)]Br (C(n)PyBr)，n = 12、14、16、18、20 和 22。尽管这些材料在微观尺度上是无定形的，但它们具有结晶中孔率和有序排列的表面活性剂-填充圆柱孔。除了高介观有序性外，孔-孔分离还可以通过表面活性剂链长（即 n 值）进行调节。这些材料的质量，以六边形排列的程度来判断，与报告的最高质量 MCM-41 硅酸盐相媲美或超过。迄今为止，对于介观结构硫属化物固体，这些材料具有最低的带隙，范围为 1.5 < E(g) < 2.3 eV。当用带隙以上的光激发时，C(n)PyPtGeS
• Process for preparing alkyl chlorides
  申请人：Osterholt Clemens

  公开号：US20060205987A1

  公开（公告）日：2006-09-14

  The invention relates to a process for preparing alkyl chlorides by reacting alcohols with gaseous hydrogen chloride in the presence of a catalyst, wherein the catalyst comprises at least one compound of the structure: wherein R 1 is a linear alkyl group having from 1 to 20 carbon atoms, R 2 , R 3 , and R 4 is selected from a hydrogen, an alkyl, an alkenyl, an aralkyl or an alkylaryl group from 1 to 20 carbon atoms, wherein the substituents of R 2 , R 3 , and R 4 are all identical, are all different or two of the substituents of R 2 , R 3 , and R 4 type are identical.

  该发明涉及一种制备烷基氯化物的过程，通过在催化剂存在下，将醇与气态氯化氢反应来实现，其中催化剂包括至少一种具有以下结构的化合物： 其中 R1为具有1至20个碳原子的线性烷基基团， R2、R3和R4选自具有1至20个碳原子的氢、烷基、烯烃、芳基烷基或烷基芳基基团，其中R2、R3和R4的取代基都相同、都不同或者R2、R3和R4的两个取代基相同。
• Efficacy of Novel Quaternary Ammonium and Phosphonium Salts Differing in Cation Type and Alkyl Chain Length against Antibiotic-Resistant Staphylococcus aureus
  作者：Bárbara Nunes、Fernando Cagide、Carlos Fernandes、Anabela Borges、Fernanda Borges、Manuel Simões

  DOI：10.3390/ijms25010504

  日期：——

  heteronium salts (QHSs), such as quaternary ammonium and phosphonium compounds as potential candidates. In this study, a library of 49 structurally related QHSs was synthesized, varying the cation type and alkyl chain length. Their antibacterial activities against Staphylococcus aureus, including antibiotic-resistant strains, were evaluated by determining minimum inhibitory/bactericidal concentrations

  抗菌素耐药性对公共卫生构成严重威胁，对细菌感染的预防和治疗提出了挑战。对创新抗菌剂的探索激发了人们对季杂鎓盐 (QHS) 的浓厚兴趣，例如季铵和鏻化合物作为潜在的候选者。在这项研究中，合成了 49 个结构相关的 QHS 库，不同的阳离子类型和烷基链长度。通过测定最低抑制/杀菌浓度 (MIC/MBC) ≤ 64 µg/mL 来评估它们对金黄色葡萄球菌（包括抗生素耐药菌株）的抗菌活性。结构-活性关系分析强调烷基三苯基鏻盐和烷基甲基咪唑盐对金黄色葡萄球菌 CECT 976 最有效。烷基侧链的长度显着影响抗菌活性，最佳链长度在 C10 和 C14 之间。对选定的 QHS 的剂量反应关系进行了评估，显示出遵循非线性模式的剂量依赖性抗菌活性。生存曲线表明低浓度的 QHS，特别是化合物 1e、3e 和 5e，可以有效根除金黄色葡萄球菌 CECT 976。此外，体外人体细胞数据表明，化合物 2e、4e 和
• Process for production of tris(tribromophenoxy)-s-triazine
  申请人：DAI-ICHI KOGYO SEIYAKU CO., LTD.

  公开号：EP0633253A1

  公开（公告）日：1995-01-11

  This invention relates to a process for producing tris(tribromophenoxy)-s-triazine. The process is characterized in that cyanuric chloride and an aqueous tribromophenolate solution are subjected to reaction in the presence of a tertiary amine. According to this process, the reaction goes to completion in a short time and the yield and purity of the product are high.

  本发明涉及一种生产三(三溴苯氧基)-s-三嗪的工艺。该工艺的特点是三聚氯氰和三溴苯酚水溶液在叔胺存在下进行反应。根据该工艺，反应可在短时间内完成，产品的产量和纯度都很高。