3,4-二氯呋喃 | 15341-59-0

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 芳基卤化物
• 中文名称: 3,4-二氯呋喃
• 英文名称: 3,4-dichlorofuran
• 英文别名: 3,4-dichloro-furan；3,4-Dichlor-furan；Furan, 3,4-dichloro-
• CAS: 15341-59-0
• 化学式: C₄H₂Cl₂O
• 分子量: 136.965
• InChiKey: MYCIGSPXIAEGLA-UHFFFAOYSA-N

物化性质

• 熔点：
  3.8-4.0 °C
• 沸点：
  122.8-123.1 °C(Press: 744 Torr)
• 密度：
  1.4136 g/cm3

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  7
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  13.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  3,4-二氯呋喃 在 硝酸 作用下， 生成 2,3-二氯马来酸酐
  参考文献：
  名称：

  THE SIMPLE HALOGEN DERIVATIVES OF FURAN

  摘要：

  DOI：

  10.1021/ja01368a057
• 作为产物：
  描述：

  3,4-二氯呋喃-2-羧酸 在 喹啉 、 铜 作用下， 生成 3,4-二氯呋喃
  参考文献：
  名称：

  THE SIMPLE HALOGEN DERIVATIVES OF FURAN

  摘要：

  DOI：

  10.1021/ja01368a057

文献信息

• Intramolecular nucleophilic interception by the sulfonyl group of reaction intermediates arising from electrophilic addition to unsaturated non-conjugated bicyclic sulfones
  作者：J. I. G. Cadogan、Donald K. Cameron、Ian Gosney、John R. A. Millar、Stephen F. Newlands、David Reed

  DOI：10.1039/p29960002309

  日期：——

  Electrophilic addition of molecular bromine and related reactions to unsaturated bicyclic sulfones resulting in atypical addition is described. Bromination of the bicyclic sulfone 3 results in a ca. 1 : 1 mixture of exo,exo- and exo,endo-dibromides 4 and 5, respectively. Similarly, acid-catalysed cleavage of epoxide 8 produces a 37 : 63 mixture of exo,exo- and exo,endo-bromohydrins 9 and 10, respectively

  描述了分子溴的亲电加成和与不饱和双环砜相关的反应，从而导致非典型加成。双环砜3的溴化导致大约 exo，exo-和exo，内二溴化物4和5的1：1混合物。类似地，酸催化的环氧化物8的裂解分别产生exo，exo-和exo，内-溴代醇9和10的37:63混合物。在这两种情况下，形成的外，外-产物以有利的稳定作用来解释，该稳定作用可以通过反应介质中水的存在来淬灭，如图6所示，在极性SO 2基团和初始碳正离子中心之间。还描述了正式的亲核邻近基团的参与在降冰片烯系统12中通过内位的磺酰基基团，其在离子溴化时仅导致exo，exo- dibromides 13。在不饱和砜27的情况下，溴化以形成外，外切-dibromide发生30通过。可分解的，虽然是亚稳态的三溴化物盐的分解29。由于类似的作用，对相关外泌体的治疗在乙酸中用溴化氢形成环己醇-环氧化物16会导致区域和立体构象形成外-环溴醇17，这是唯一的产物。
• Blend of polyarylene sulfide and wholly aromatic polyester
  申请人：CELANESE CORPORATION

  公开号：EP0044184A2

  公开（公告）日：1982-01-20

  A polymer blend which is capable of exhibiting an anisotropic melt phase, improved processability characteristics and the ability to form molded articles having satisfactory mechanical properties is provided. The polymer blend comprises approximately 5 to approximately 95 percent by weight, based upon the total weight of the blend, of a polyarylene sulfide and approximately 5 to approximately 95 percent by weight, based upon the total weight of the blend, of a melt processable wholly aromatic polyester which is capable of forming an anisotropic melt phase apart from the blend. Blend compositions containing high concentrations of wholly aromatic polyester (i.e., at least 60 percent by weight wholly aromatic polyester) can be used to form fibers and films.

  本发明提供了一种聚合物混合物，该混合物能够显示出各向异性熔融相、改进的加工特性以及形成具有令人满意的机械特性的模塑制品的能力。该聚合物混合物包括按混合物总重量计算的约 5%至约 95%（重量百分比）的聚芳基硫醚和按混合物总重量计算的约 5%至约 95%（重量百分比）的可熔融加工的全芳香族聚酯，该聚酯能够在混合物之外形成各向异性熔融相。含有高浓度全芳香族聚酯（即至少 60% 的全芳香族聚酯重量比）的混合物组合物可用来形成纤维和薄膜。
• Polymer catalyst transducers and use thereof in test kits for analytical methods
  申请人：MILES INC.

  公开号：EP0140322A2

  公开（公告）日：1985-05-08

  Polymer-catalyst tranducers and their use for detecting one or more constituents in a sample are disclosed. Changes in conductivity of the polymercatalyst transducers as a result of electron density changes are measured to provide an indication of a particular constituent present in the sample. Such conductivity changes can be measured using a conductivity meter. The polymer-catalyst tranducers are particularly useful for the determination of glucose in whole blood.

  本发明公开了聚合物催化剂诱导体及其用于检测样品中一种或多种成分的方法。通过测量电子密度变化引起的聚合物催化剂传感器电导率的变化，可以显示样品中存在的特定成分。这种电导率变化可以使用电导率仪进行测量。聚合物催化剂诱导体特别适用于测定全血中的葡萄糖。
• HORTH, H., AQUA, 38,(1989) N, C. 80-100
  作者：HORTH, H.

  DOI：——

  日期：——
• CONTROL OF SUSTAINED CASING PRESSURE IN WELLBORE ANNULI
  申请人：ALBEMARLE CORPORATION

  公开号：US20160289527A1

  公开（公告）日：2016-10-06

  This invention provides a method for minimizing or relieving a sustained casing pressure in an annulus of a wellbore, where the annulus contains a first fluid having a density. The method comprises introducing a second fluid into the annulus. The second fluid has a density greater than the density of the first fluid and the second fluid is immiscible with the first fluid. The method is characterized in that the second fluid comprises at least one halogen-containing organic compound. The halogen-containing organic compound has one or more halogen atoms selected from fluorine, chlorine, bromine, and iodine, with the proviso that at least one of the halogen atoms is chlorine, bromine, or iodine.