1,2-二(4-氯苯基)乙烷 | 5216-35-3

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 中文名称: 1,2-二(4-氯苯基)乙烷
• 英文名称: 1,2-bis(4-chlorophenyl)ethane
• 英文别名: ETHANE, 1,2-BIS(p-CHLOROPHENYL)-；1-chloro-4-[2-(4-chlorophenyl)ethyl]benzene
• CAS: 5216-35-3
• 化学式: C₁₄H₁₂Cl₂
• 分子量: 251.155
• InChiKey: HTHGRQSFMYIQHB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.4
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

安全信息

• 海关编码：
  2903999090
• 危险性防范说明：
  P264,P280,P302+P352,P337+P313,P305+P351+P338,P362+P364,P332+P313
• 危险性描述：
  H315,H319

反应信息

• 作为反应物：
  描述：

  1,2-二(4-氯苯基)乙烷 在 graphite oxide-NiCl₂ 三乙基硅烷 作用下， 反应 3.0h， 以100%的产率得到1,2-二苯乙烷
  参考文献：
  名称：

  一种用于多氯芳烃还原脱氯的氧化石墨基镍催化剂

  摘要：

  制备了基于氧化石墨的多相含镍催化剂，并研究了它们在不同有机硅烷对多氯芳烃脱氯中的活性。

  DOI：

  10.1007/bf02494886
• 作为产物：
  描述：

  1-氯-4-[2-(4-氯苯基)乙炔基]苯 在 镍 氢气 作用下， 生成 1,2-二(4-氯苯基)乙烷
  参考文献：
  名称：

  Weis,C.D., Helvetica Chimica Acta, 1966, vol. 49, p. 234 - 243

  摘要：

  DOI：

文献信息

• Direct preparation of benzylic manganese reagents from benzyl halides, sulfonates, and phosphates and their reactions: applications in organic synthesis
  作者：YoungSung Suh、Jun-sik Lee、Seoung-Hoi Kim、Reuben D Rieke

  DOI：10.1016/s0022-328x(03)00500-x

  日期：2003.11

  The use of highly active manganese (Mn)*, prepared by the Rieke method, was investigated for the direct preparation of benzylic manganese reagents. The oxidative addition of the highly active manganese to benzylic halides was easily completed under mild conditions. Moreover, benzylic manganese sulfonates and phosphates were prepared by direct oxidative addition of Mn* to the carbon–oxygen bonds of

  研究了通过Rieke方法制备的高活性锰（Mn）*用于直接制备苄基锰试剂的方法。高活性锰在苄基卤化物中的氧化加成反应很容易在温和的条件下完成。此外，通过将Mn *直接氧化加成到苄基磺酸盐和磷酸盐的碳-氧键上来制备苄基锰磺酸盐和磷酸盐。发现所得的苄基锰试剂与多种亲电试剂发生交叉偶联反应。这些反应大多数在温和条件下在不存在任何过渡金属催化剂的情况下进行。此外，还研究了使用高活性锰制备不含过渡金属催化剂的功能化苄基卤化物的均偶联产物。N-烷氧基羰基吡啶鎓盐。
• “Bulky-Yet-Flexible” α-Diimine Palladium-Catalyzed Reductive Heck Cross-Coupling: Highly Anti-Markovnikov-Selective Hydroarylation of Alkene in Air
  作者：Xu-Wen Yang、Dong-Hui Li、A-Xiang Song、Feng-Shou Liu

  DOI：10.1021/acs.joc.0c01509

  日期：2020.9.18

  regioselective and efficient reductive Heck reaction, a series of moisture- and air-stable α-diimine palladium precatalysts were rationally designed, readily synthesized, and fully characterized. The relationship between the structures of the palladium complexes and the catalytic properties was investigated. It was revealed that the“bulky-yet-flexible”palladium complexes allowed highly anti-Markovnikov-selective

  为了进行高度区域选择性和高效的还原性Heck反应，合理设计，易于合成和充分表征了一系列湿气和空气稳定的α-二亚胺钯预催化剂。研究了钯配合物的结构与催化性能之间的关系。揭示了“大而尚柔的”钯配合物在好氧条件下可以使烯烃与（杂）芳基溴化物高度抗马尔科夫尼科夫选择性加氢芳基化。本方案的进一步合成应用可以提供对功能和生物活性分子的快速直接访问。
• Synthesis of Dibenzyls by Nickel-Catalyzed Homocoupling of Benzyl Alcohols
  作者：Xing-Zhong Shu、Feng-Feng Pan、Peng Guo、Xiaochuang Huang

  DOI：10.1055/a-1467-2432

  日期：2021.9

  blocks that are widely used in organic synthesis, and they are typically prepared by the homocoupling of halides, organometallics, and ethers. Herein, we report an approach to this class of compounds using alcohols, which are more stable and readily available. The reaction proceeds via nickel-catalyzed and dimethyl oxalate assisted dynamic kinetic homocoupling of benzyl alcohols. Both primary and secondary

  二苄基是广泛用于有机合成中的基本结构单元，它们通常通过卤化物，有机金属和醚的均偶联来制备。本文中，我们报告了一种使用醇的这类化合物的方法，该醇更稳定且易于获得。该反应通过镍催化的和草酸二甲酯辅助的苄醇的动态动力学均偶联进行。伯醇和仲醇都是可以容忍的。
• Flash vacuum pyrolysis over magnesium. Part 1. Pyrolysis of benzylic, other aryl/alkyl and aliphatic halides
  作者：R. Alan Aitken、Philip K. G. Hodgson、John J. Morrison、Adebayo O. Oyewale

  DOI：10.1039/b108663d

  日期：2002.1.23

  Flash vacuum pyrolysis over a bed of freshly sublimed magnesium on glass wool results in efficient coupling of benzyl halides to give the corresponding bibenzyls. Where an ortho halogen substituent is present further dehalogenation gives some dihydroanthracene and anthracene. Efficient coupling is also observed for halomethylnaphthalenes and halodiphenylmethanes while chlorotriphenylmethane gives 4,4′-bis(diphenylmethyl)biphenyl. By using α,α′-dihalo-o-xylenes, benzocyclobutenes are obtained in good yield, while the isomeric α,α′-dihalo-p-xylenes give a range of high thermal stability polymers by polymerisation of the initially formed p-xylylenes. Other haloalkylbenzenes undergo largely dehydrohalogenation where this is possible, in some cases resulting in cyclisation. Deoxygenation is also observed with haloalkyl phenyl ketones to give phenylalkynes as well as other products. With simple alkyl halides there is efficient elimination of HCl or HBr to give alkenes. For aliphatic dihalides this also occurs to give dienes but there is also cyclisation to give cycloalkanes and dehalogenation with hydrogen atom transfer to give alkenes in some cases. For 5-bromopent-1-ene the products are those expected from a radical pathway but for 6-bromohex-1-ene they are clearly not. For 2,2-dichloropropane and 1,1-dichloropropane elimination of HCl occurs but for 1,1-dichlorobutane, -pentane and -hexane partial hydrolysis followed by elimination of HCl gives E,E-, E,Z- and Z,Z- isomers of the dialk-1-enyl ethers and fully assigned 13C NMR data are presented for these. With 6-chlorohex-1-yne and 7-chlorohept-1-yne there is cyclisation to give methylenecycloalkanes and -cycloalkynes. The behaviour of 1,2-dibromocyclohexane and 1,2-dichlorocyclooctane under these conditions is also examined. Various pieces of evidence are presented that suggest that these processes do not involve generation of free gas-phase radicals but rather surface-adsorbed organometallic species.

  在玻璃棉上覆盖一层新升华的镁,进行闪式真空热解,能有效促使苄基卤化物耦合生成相应的联苄。当有邻位卤素取代基存在时,进一步脱卤生成部分二氢蒽和蒽。卤甲基萘和二苯基甲烷也能高效耦合,而三苯基氯甲烷则生成4,4′-双(二苯甲基)联苯。用α,α′-二卤代邻二甲苯可以获得较高产率的苯并环丁烯,而异构的α,α′-二卤代对二甲苯,通过形成的对二甲苯的聚合,可以得到一系列高热稳定性的聚合物。其他卤代烃苯大体上会脱卤化氢,某些情况下能产生环化反应。同样可以观察到,苯基卤代烷烃脱去羰基生成苯乙炔以及其他产物。简单的烷基卤化物则高效地脱去HCl或HBr生成烯烃。脂肪族二卤化物也会发生这一反应生成二烯,但不发生环化反应生成环烷烃,或在某些情况下发生氢原子转移的脱卤反应生成烯烃。5-溴戊-1-烯的产物符合自由基途径的预期,但6-溴己-1-烯并不符合。2,2-二氯丙烷和1,1-二氯丙烷能脱去HCl,但1,1-二氯丁烷、戊烷和己烷则能部分水解,随后脱去HCl,生成E,E-, E,Z-和Z,Z-异构体二烷-1-烯基醚,并且得到了这些物质的13C NMR全归属数据。6-氯己-1-炔和7-氯庚-1-炔能发生环化反应生成亚甲基环烷烃和环炔烃。本文还考察了1,2-二溴环己烷和1,2-二氯环辛烷在上述条件下的行为。本文给出了众多种证据,表明这些反应过程不涉及气相自由基的形成,而是表面吸附的金属有机物种。
• Organotitanium chemistry XVIII. Dehalogenation of organic halides by Cp2TiX (X = Cl, Br)
  作者：Qian Yanlong、Li Guisheng、Yao-Zeng Huang

  DOI：10.1016/0022-328x(90)85446-6

  日期：1990.1

  Dicyclopentadienyltitanium chloride and bromide prepared in situ from the reduction of dicyclopentadienyltitanium dichloride by isopropylmagnesium chloride and bromide, respectively, are effective dehalogenating reagents for benzylic, allylic halides and α-bromoketones. Benzylic and allylic halides are transformed into the coupling products whereas the α-bromoketones are reduced to the corresponding ketones

  由异丙基氯化镁和溴化物分别还原二环戊二烯基二氯化钛而制得的二环戊二烯基氯化钛和溴化物是有效的脱卤试剂，用于苄基，烯丙基卤化物和α-溴代酮。将苄基和烯丙基卤化物转化为偶联产物，而在温和的条件下，以令人满意的产率将α-溴代酮还原为相应的酮。