1,2-bis(2-(bromomethyl)phenyl)diselenide | 448193-30-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 1,2-bis(2-(bromomethyl)phenyl)diselenide
• 英文别名: bis[2-(bromomethyl)phenyl] diselenide；2,2-diseleno-bis(bromomethylbenzene)；2,2'-diseleno-bis(bromomethylbenzene)；2,2'-Diselenodibenzyl bromide；1-(bromomethyl)-2-[[2-(bromomethyl)phenyl]diselanyl]benzene
• CAS: 448193-30-4
• 化学式: C₁₄H₁₂Br₂Se₂
• 分子量: 497.977
• InChiKey: XHNFPRUXSDXOOQ-UHFFFAOYSA-N

物化性质

• 沸点：
  518.8±60.0 °C(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.75
• 重原子数：
  18
• 可旋转键数：
  5
• 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

反应信息

• 作为反应物：
  描述：

  1,2-bis(2-(bromomethyl)phenyl)diselenide 在 溴 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 0.25h， 生成 2-(bromomethyl)benzeneselenenyl cyanide
  参考文献：
  名称：

  Experimental and Theoretical Studies on the Nature of Weak Nonbonded Interactions between Divalent Selenium and Halogen Atoms

  摘要：

  To investigate the nature of weak nonbonded selenium(...)halogen interactions ((SeX)-X-... interactions; X = F Cl, and Br), three types of model compounds [2-(CH2X)C6H4SeY (1-3), 3-(CH2X)-2-C10H6-SeY (4-6), and 2-XC6H4CH2SeY (7-9); Y = CN, Cl, Br, SeAr, and Me] were synthesized, and their Se-77 NMR spectroscopic behaviors were analyzed in CDCl3. The gradual upfield shifts of Se-77 NMR absorptions observed for series 1-3 and 4-6 suggested that the strength of (SeX)-X-... interaction decreases in the order of (SeF)-F-... > (SeCl)-Cl-... > (SeBr)-Br-.... The quantum chemical calculations at the B3LYP/631H level using the polarizable continuum model (PCM) revealed that the most stable conformer for 1-3 is the one with an intramolecular short (SeX)-X-... atomic contact in CHCl3 (epsilon = 4.9) and also that the n(x) --> sigma*(se-y) orbital interaction (E-Se...X) can reasonably explain the order of strength for the (SeX)-X-... interactions. On the other hand, the Se-77 NMR absorptions observed for series 7-9 did not shift significantly from the reference compounds (C6H5CH2SeY), indicating the absence of the (SeX)-X-... interaction for 7-9 presumably due to attenuation of basicity for the halogen atom that is substituted directly to the aromatic ring. These observations suggested that the n(x) --> sigma*(se-y) orbital interaction is a dominant factor for formation of weak (SeX)-X-... interactions. Electron correlation was also suggested to be important for the stability.

  DOI：

  10.1021/jo048436a
• 作为产物：
  描述：

  2-氨基苯甲酸乙酯 在 盐酸 、 lithium aluminium tetrahydride 、 氟硼酸钠 、 氢溴酸 、 溶剂黄146 、 sodium nitrite 作用下， 以 乙醚 、 水 为溶剂， 反应 7.5h， 生成 1,2-bis(2-(bromomethyl)phenyl)diselenide
  参考文献：
  名称：

  含咪唑二硒化物，用于在水溶液中用过氧化氢和溴化钠催化氧化

  摘要：

  描述了含咪唑鎓二硒化物4a – c的设计与合成。与大多数常见的有机二硒化物不同，N-甲基咪唑鎓基团的引入可在水中提供可自由溶解的化合物。使用安全和廉价的NaBr / H 2 O 2水溶液，催化量的4a – c可有效促进有机底物的溴化。动力学实验表明，4-戊烯酸的溴化反应对NaBr和H 2 O 2都具有一级依赖性浓度反应速率也对溶液的pH敏感。制备反应表明，与4a相比，二苯基二硒化物5是不良的催化剂，离子液体溴化1-苄基-3-甲基咪唑鎓溴化物6没有与H 2 O 2的催化活性，表明结合的官能团具有协同作用。

  DOI：

  10.1016/j.tet.2012.08.004

文献信息

• Synthesis and Structure-Activity Correlation Studies of Secondary- and Tertiary-Amine-Based Glutathione Peroxidase Mimics
  作者：Krishna P. Bhabak、Govindasamy Mugesh

  DOI：10.1002/chem.200900818

  日期：2009.9.28

  In this study, a series of secondary‐ and tertiary‐amino‐substituted diaryl diselenides were synthesized and studied for their glutathione peroxidase (GPx) like antioxidant activities with H2O2, cumene hydroperoxide, or tBuOOH as substrates and with PhSH or glutathione (GSH) as thiol cosubstrates. This study reveals that replacement of the tert‐amino groups in benzylamine‐based diselenides by sec‐amino

  在这项研究中，合成了一系列仲和叔氨基取代的二芳基二硒化物，并研究了它们的谷胱甘肽过氧化物酶（GPx）的抗氧化活性，例如以H 2 O 2，枯烯氢过氧化物或t BuOOH为底物，以PhSH或谷胱甘肽为抗氧化剂。（GSH）作为硫醇共底物。这项研究表明，用仲氨基取代苄胺基二硒化物中的叔氨基可以显着增强芳族硫醇（PhSH）和GSH分析系统的催化活性。特别是，N-丙基和N-异丙基氨基取代的二硒化物的活性是相应的N，N的8-18倍当将GSH用作硫醇共底物时，在所有三个过氧化物系统中都使用基于二丙基胺和N，N-二异丙基胺的化合物。虽然催化机理仲丁基-氨基-取代的diselenides是类似于的叔基于胺的化合物，在一些关键中间体的稳定性和反应性的差异占在GPx的样活性的差异。观察到，在产生催化活性硒醇方面，仲氨基比叔氨基更好。这是由于在从基于仲胺的二硒化物衍生的硒烯基硫化物中不存在任何重要的硫醇交换反应。此外，硒酸（RSeO2
• Heavy-Row Atom Effects on the Strength of the Weak Nonbonded Interactions between Divalent Selenium and Halogen Atoms
  作者：Michio Iwaoka、Takayuki Katsuda、Shuji Tomoda、Jun Harada、Keiichiro Ogawa

  DOI：10.1246/cl.2002.518

  日期：2002.5

  The 77Se NMR chemical shifts observed for 2-selenobenzyl halide derivatives and the density functional theoretical calculation revealed that the strength of intramolecular nonbonded interactions between a divalent selenium and halogen atoms decreases in the order, Se···F>Se···Cl≥Se···Br.

  2-硒代苄基卤化物衍生物的77Se NMR化学位移和密度泛函理论计算表明，二价硒与卤原子的分子内非键相互作用强度依次降低，Se…F>Se…Cl≥ Se···Br.
• Imidazolium-containing diselenides for catalytic oxidations with hydrogen peroxide and sodium bromide in aqueous solutions
  作者：Eduardo E. Alberto、Antonio L. Braga、Michael R. Detty

  DOI：10.1016/j.tet.2012.08.004

  日期：2012.12

  The design and synthesis of imidazolium-containing diselenides 4a–c is described. The introduction of the N-methylimidazolium group gives freely soluble compounds in water, unlike the majority of common organic diselenides. Catalytic amounts of 4a–c effectively promote bromination of organic substrates using a safe and inexpensive NaBr/H2O2 system in water. Kinetics experiments revealed that the bromination

  描述了含咪唑鎓二硒化物4a – c的设计与合成。与大多数常见的有机二硒化物不同，N-甲基咪唑鎓基团的引入可在水中提供可自由溶解的化合物。使用安全和廉价的NaBr / H 2 O 2水溶液，催化量的4a – c可有效促进有机底物的溴化。动力学实验表明，4-戊烯酸的溴化反应对NaBr和H 2 O 2都具有一级依赖性浓度反应速率也对溶液的pH敏感。制备反应表明，与4a相比，二苯基二硒化物5是不良的催化剂，离子液体溴化1-苄基-3-甲基咪唑鎓溴化物6没有与H 2 O 2的催化活性，表明结合的官能团具有协同作用。
• Experimental and Theoretical Studies on the Nature of Weak Nonbonded Interactions between Divalent Selenium and Halogen Atoms
  作者：Michio Iwaoka、Takayuki Katsuda、Hiroto Komatsu、Shuji Tomoda

  DOI：10.1021/jo048436a

  日期：2005.1.1

  To investigate the nature of weak nonbonded selenium(...)halogen interactions ((SeX)-X-... interactions; X = F Cl, and Br), three types of model compounds [2-(CH2X)C6H4SeY (1-3), 3-(CH2X)-2-C10H6-SeY (4-6), and 2-XC6H4CH2SeY (7-9); Y = CN, Cl, Br, SeAr, and Me] were synthesized, and their Se-77 NMR spectroscopic behaviors were analyzed in CDCl3. The gradual upfield shifts of Se-77 NMR absorptions observed for series 1-3 and 4-6 suggested that the strength of (SeX)-X-... interaction decreases in the order of (SeF)-F-... > (SeCl)-Cl-... > (SeBr)-Br-.... The quantum chemical calculations at the B3LYP/631H level using the polarizable continuum model (PCM) revealed that the most stable conformer for 1-3 is the one with an intramolecular short (SeX)-X-... atomic contact in CHCl3 (epsilon = 4.9) and also that the n(x) --> sigma*(se-y) orbital interaction (E-Se...X) can reasonably explain the order of strength for the (SeX)-X-... interactions. On the other hand, the Se-77 NMR absorptions observed for series 7-9 did not shift significantly from the reference compounds (C6H5CH2SeY), indicating the absence of the (SeX)-X-... interaction for 7-9 presumably due to attenuation of basicity for the halogen atom that is substituted directly to the aromatic ring. These observations suggested that the n(x) --> sigma*(se-y) orbital interaction is a dominant factor for formation of weak (SeX)-X-... interactions. Electron correlation was also suggested to be important for the stability.