1,2-di-2-naphthalenyl disulfide | 128803-05-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 1,2-di-2-naphthalenyl disulfide
• 英文别名: 1-(Naphthalen-2-yldisulfanyl)naphthalene
• CAS: 128803-05-4
• 化学式: C₂₀H₁₄S₂
• 分子量: 318.463
• InChiKey: STHHEUILIMXZHA-UHFFFAOYSA-N

物化性质

• 沸点：
  494.0±14.0 °C(Predicted)
• 密度：
  1.29±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.5
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  50.6
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2-萘硫醇 在 双氧水 作用下， 以 乙醇 为溶剂， 反应 1.0h， 以93%的产率得到1,2-di-2-naphthalenyl disulfide
  参考文献：
  名称：

  Fe3O4 @ MCM-41 @ Zn-Arg：一种新颖，磁性可回收且生态友好的纳米催化剂，用于合成二硫化物，亚砜和2,3-二氢喹唑啉-4（1H）-ones

  摘要：

  抽象的 据报道，锌精氨酸络合物直接负载在磁性核-壳纳米结构（Fe 3 O 4 @ MCM-41 @ Zn-Arg）上，是一种新颖，均质且优异的纳米催化剂，可用于硫化物氧化成亚砜的反应，硫醇与其相应的二硫键的氧化偶联和2,3-二氢喹唑啉-4（1 H）-温和条件下的一种衍生物。通过X射线衍射，傅立叶变换红外光谱，热重分析，扫描电子显微镜，原子吸收光谱和振动样品磁强分析技术研究了催化剂的结构。简单的实验程序，非常好的催化活性，低成本和出色的回收利用是当前采用的多相催化体系的显着特征。

  DOI：

  10.1080/24701556.2020.1802750

文献信息

• [[(<i>tert</i>-Butyl)dimethylsilyl]oxy]methyl Group for Sulfur Protection
  作者：Lihong Wang、Derrick L. J. Clive

  DOI：10.1021/ol2002573

  日期：2011.4.1

  aliphatic thiols can be protected by reaction with t-BuMe2SiOCH2Cl in DMF in the presence of a base (2,6-lutidine or proton sponge); the resulting t-BuMe2SiOCH2SR or t-BuMe2SiOCH2SAr are deprotected by sequential treatment with Bu4NF and I2 to give symmetrical disulfides. Another mode of deprotection involves reaction with a sulfenyl chloride; this process gives an unsymmetrical disulfide and was examined

  芳族和脂族硫醇可以通过与保护吨-BuMe 2的SiOCH 2氯在DMF中，在碱（2,6-二甲基吡啶或质子海绵）的存在; 所得吨-BuMe 2的SiOCH 2 SR或吨-BuMe 2的SiOCH 2 SAR通过用布顺序处理脱保护4 NF和我2，得到对称的二硫化物。脱保护的另一种方式涉及与亚磺酰氯反应。该过程产生不对称的二硫键，并用Me（CH 2）11 SCH 2 OSiMe 2 Bu-t和三个亚磺酰氯。
• A V(O)-Schiff-base complex on MCM-41 as an efficient, reusable, and chemoselective nanocatalyst for the oxidative coupling of thiols and oxidation of sulfides
  作者：Arida Jabbari、Mohsen Nikoorazm、Parisa Moradi

  DOI：10.1007/s11164-023-04977-w

  日期：2023.4

  The chemoselective oxidative coupling of thiols to disulfides and oxidation of sulfides to corresponding sulfoxides are significant procedures in organic chemistry. Therefore, we have investigated 5-nitro-salicylaldehyde Schiff-base complex of vanadium oxide on MCM-41 (V(O)-5NSA-MCM-41) as a stable, efficient, reusable, and chemoselective nanocatalyst for the synthesis of disulfide and sulfoxide derivatives

  硫醇与二硫化物的化学选择性氧化偶联以及硫化物氧化为相应的亚砜是有机化学中的重要过程。因此，我们研究了 MCM-41 上氧化钒的 5-硝基水杨醛席夫碱络合物 (V(O)-5NSA-MCM-41) 作为一种稳定、高效、可重复使用和化学选择性的纳米催化剂，用于合成二硫化物和使用过氧化氢（H 2 O 2) 作为生物相容性、廉价且可用的氧化剂。使用 SEM、EDS、WDX、XRD、TEM、TGA、BET 和 FTIR 等各种技术对 V(O)-5NSA-MCM-41 进行了表征。该催化剂可以回收并重复使用数次，而不会显着降低催化活性。此外，回收的催化剂用几种技术进行了表征，这些技术与重新使用前的新鲜催化剂表现出极好的一致性。重复使用和未重复使用的催化剂的比较证实了该催化剂的多相性质。
• CYCLOOLEFIN COPOLYMER OBTAINED BY RING-OPENING POLYMERIZATION, USE THEREOF, AND PROCESS FOR PRODUCING RETARDATION PLATE COMPRISING THE COPOLYMER
  申请人：JSR Corporation

  公开号：EP1739113A1

  公开（公告）日：2007-01-03

  A cycloolefin copolymer obtained by ring opening polymerization according to the present invention is characterized by comprising a specific structural unit and exhibiting a single peak in a derivative differential scanning calorimetry curve obtained by differential scanning calorimeter (DSC), having a temperature width of the rising part in the peak of 35°C or below, and having a glass transition temperature (Tg) of 110°C or above. The cycloolefin copolymer provided by the present invention has excellent heat resistance and optical properties, is suitable for the formation of a film or sheet therefrom, and can be stretched even at a relatively low temperature around the Tg without causing troubles such as cloudiness. A film or sheet comprising the cycloolefin copolymer, which has excellent optical properties and heat resistance and is also suitable for stretching even at a relatively low temperature, is also provided. Further, there are also provided a retardation plate having excellent optical properties and heat resistance and having uniform retardation, and a process for producing the retardation plate.

  根据本发明通过开环聚合得到的环烯烃共聚物，其特征在于包含一个特定的结构单元，并在差示扫描量热仪（DSC）得到的导数差示扫描量热曲线中显示一个单一的峰值，峰值中上升部分的温度宽度为35℃或以下，玻璃化转变温度（Tg）为110℃或以上。本发明提供的环烯烃共聚物具有优异的耐热性和光学特性，适合用其制成薄膜或薄片，即使在 Tg 附近相对较低的温度下拉伸也不会产生浑浊等问题。此外，还提供了一种包含环烯烃共聚物的薄膜或薄片，该薄膜或薄片具有优异的光学特性和耐热性，即使在相对较低的温度下也适合拉伸。此外，还提供了一种具有优异光学性能和耐热性能且具有均匀缓凝效果的缓凝板，以及生产该缓凝板的工艺。
• Multi-layer cover golf ball having a high acid casing layer
  申请人：Acushnet Company

  公开号：US10029151B2

  公开（公告）日：2018-07-24

  A golf ball includes a single core having an outer surface and a geometric center. The core is formed from a substantially homogenous rubber composition. An inner cover layer is disposed about the core, the inner cover including a high-acid ionomer and having a material hardness of about 66 to 75 Shore D. The high-acid ionomer has an acid content of about 16% or greater. An outer cover layer is disposed about the inner cover layer, the outer cover including a polyurethane and having a material hardness of about 38 Shore D to about 56 Shore D. The core surface hardness is from 0 Shore C to 15 Shore C lower than the geometric center hardness to define a hardness gradient.

  高尔夫球包括一个具有外表面和几何中心的球芯。球芯由基本均匀的橡胶成分形成。内包层围绕球芯设置，内包层包括高酸离子聚合物，材料硬度约为 66 至 75 邵氏硬度 D，高酸离子聚合物的酸含量约为 16% 或更高。核心表面硬度比几何中心硬度低 0 至 15 肖氏硬度，从而形成硬度梯度。
• Dual core golf ball having positive-hardness-gradient thermoplastic inner core and positive-hardness-gradient thermoset outer core layer
  申请人：Acushnet Company

  公开号：US10052525B2

  公开（公告）日：2018-08-21

  A golf ball comprising an inner core layer including a thermoplastic material and having a geometric center hardness less than the surface hardness to define a positive hardness gradient. An outer core layer is formed over the inner core. The outer core includes a thermoset rubber composition and has an inner surface hardness less than an outer surface hardness to define a positive hardness gradient. A cover layer is formed over the outer core layer. The cover layer includes an inner cover layer and an outer cover layer. The thermoplastic material of the core includes an acid copolymer of ethylene and an α,β-unsaturated carboxylic acid, optionally a softening monomer comprising alkyl acrylate or methacrylate; a plasticizer; an organic acid or salt thereof; and a cation source present in an amount sufficient to neutralize from about 70 to about 100% of all acid groups present in the material.

  一种高尔夫球，由内核层组成，内核层包括热塑材料，其几何中心硬度小于表面硬度，从而形成正的硬度梯度。外芯层形成于内芯之上。外芯层包括热固性橡胶成分，其内表面硬度小于外表面硬度，从而形成正的硬度梯度。在外芯层上形成覆盖层。覆盖层包括内覆盖层和外覆盖层。芯层的热塑性材料包括乙烯和α，β-不饱和羧酸的酸共聚物，可选的软化单体包括丙烯酸烷基酯或甲基丙烯酸酯；增塑剂；有机酸或其盐；以及阳离子源，其含量足以中和材料中存在的约 70% 至约 100% 的所有酸基。