2-(2,5-二氢呋喃-2-基)-2,5-二氢呋喃 | 98869-92-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氢呋喃
• 中文名称: 2-(2,5-二氢呋喃-2-基)-2,5-二氢呋喃
• 英文名称: 2,2'-Bifuran, 2,2',5,5'-tetrahydro-
• 英文别名: 2-(2,5-dihydrofuran-2-yl)-2,5-dihydrofuran
• CAS: 98869-92-2
• 化学式: C₈H₁₀O₂
• 分子量: 138.166
• InChiKey: OWLVHKAAVQCIEI-UHFFFAOYSA-N

物化性质

• 沸点：
  216.0±40.0 °C(Predicted)
• 密度：
  1.153±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  10
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  四氢呋喃 以 水 为溶剂， 生成 2-(2,5-二氢呋喃-2-基)-2,5-二氢呋喃 、 2-(2,3-二氢呋喃-3-基)-2,5-二氢呋喃
  参考文献：
  名称：

  由二硫烯锌生成的光照硫化锌催化形成氢键和碳-碳键

  摘要：

  L'辐照 UV du complexe bis(cis-dicyano-1,2 ethylenedithiolate-1,2) Zinc bis(tetrabutylamine) dans le THF ou le dihydro-2,5 furanne aqueux 管道 n-Zn S qui 光催化 le degagement d'氢 (φ≥0,1) 偶联了一个未脱氢二聚的 l'ether cyclique。机制。电影

  DOI：

  10.1021/ja00292a001

文献信息

• Visible light mediated homo- and heterocoupling of benzyl alcohols and benzyl amines on polycrystalline cadmium sulfide
  作者：Tatiana Mitkina、Christoph Stanglmair、Wolfgang Setzer、Michael Gruber、Horst Kisch、Burkhard König

  DOI：10.1039/c2ob07053g

  日期：——

  The oxidative coupling of sp3 hybridized carbon atoms by photocatalysis is a valuable synthetic method as stoichiometric oxidation reagents can be avoided and dihydrogen is the only byproduct of the reaction. Cadmium sulfide, a readily available semiconductor, was used as a visible light heterogeneous photocatalyst for the oxidative coupling of benzyl alcohols and benzyl amines by irradiation with blue light. Depending on the structure of the starting material, good to excellent yields of homocoupling products were obtained as mixtures of diastereomers. Cross-coupling between benzyl alcohols and benzyl amines gave product mixtures, but was selective for the coupling of tetrahydroisoquinolines to nitromethane. The results demonstrate that CdS is a suitable visible light photocatalyst for oxidative bond formation under anaerobic conditions.

  通过光催化对sp3杂化碳原子的氧化耦合是一种有价值的合成方法，因为可以避免使用化学计量的氧化试剂，并且反应中唯一的副产物是氢气。使用易得的半导体硫化镉作为可见光异相光催化剂，通过蓝光照射对苄醇和苄胺进行氧化耦合。根据起始材料的结构，获得了良好至优异的同耦合产物产率，并且这些产物是消旋异构体的混合物。苄醇和苄胺之间的交叉耦合产生了产物混合物，但对四氢异喹啉与亚硝基甲烷的耦合具有选择性。结果表明，硫化镉是适合在厌氧条件下进行氧化键形成的可见光光催化剂。
• 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。
• Hetterich, Wolfgang; Kisch, Horst, Chemische Berichte, 1988, vol. 121, p. 15 - 20
  作者：Hetterich, Wolfgang、Kisch, Horst

  DOI：——

  日期：——
• Hoerner, Gerald; Johne, Petra; Kuenneth, Ronald, Chemistry - A European Journal, 1999, vol. 5, # 1, p. 208 - 217
  作者：Hoerner, Gerald、Johne, Petra、Kuenneth, Ronald、Twardzik, Guenther、Roth, Henryette、et al.

  DOI：——

  日期：——