[NiBr2(1,2-bis(dicyclohexylphosphino)ethane)] | 75627-79-1

• 分子结构分类: 有机化合物 - 有机磷化合物 - 有机膦及其衍生物
• 英文名称: [NiBr2(1,2-bis(dicyclohexylphosphino)ethane)]
• 英文别名: [NiBr2(dcpe)]；dicyclohexyl(2-dicyclohexylphosphanylethyl)phosphane;nickel(2+);dibromide
• CAS: 75627-79-1
• 化学式: C₂₆H₄₈Br₂NiP₂
• 分子量: 641.113
• InChiKey: GHHQVSKOGJIWLK-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  [NiBr2(1,2-bis(dicyclohexylphosphino)ethane)] 在 LiOCH₃ 、 NaOCH₂CH₃ 作用下， 以 四氢呋喃 、 甲醇 、 乙醇 为溶剂， 生成 [(Ni(1,2-bis(dicyclohexylphosphino)ethane))2(1,2,4,5-benzenetetrathiolate)]
  参考文献：
  名称：

  1,2,4,5-四硫代苯甲酸酯连接的10族金属配合物的合成，结构和性质

  摘要：

  双金属化合物[（P-P）M（S 2 C 6 H 2 S 2）M（P-P）]（M = Ni，Pd; PP =螯合双（膦），3a - 3f）由O 3制备。 CS 2 ç 6 ħ 2小号2 C = O或ñ卜2周的SnS 2 c ^ 6 ħ 2小号2的Sn ñ卜2，其被保护的1,2,4,5- benzenetetrathiolate的形式。O═CS的选择性monodeprotections 2 c ^ 6 ħ 2小号2 C = O或Ñ卜2周的SnS 2 c ^ 6 ħ 2小号2的Sn Ñ卜2引线为[（P-P）的Ni（S 2 c ^ 6 ħ 2小号2 C = O）]或[（P-P）的Ni（š 2 ç 6 H 2 S 2 Sn n Bu 2）]；前者用于制备三金属化合物[（dcpe）Ni（S 2 C 6 H 2 S 2）M（S 2 C 6 H 2 S 2）Ni（dcpe）]（M = Ni（6a）或Pt（6b）；dcpe

  DOI：

  10.1021/ic901257s
• 作为产物：
  描述：

  Ni(η(2)-C2H4)(1,2-bis(dicyclohexylphosphino)ethane) 在 sodium amalgam 作用下， 以 四氢呋喃 、 氘代苯 为溶剂， 生成 [NiBr2(1,2-bis(dicyclohexylphosphino)ethane)]
  参考文献：
  名称：

  合成和镍的反应（0）η 2的Ni配合物-Cyclohexyne和X射线晶体结构（η 2 -C 6 H ^ 8）（（C 6 H ^ 11）2 PCH 2 CH 2 P（C 6 H ^ 11）2）

  摘要：

  在Ni的存在1％钠汞齐1,2- dibromocyclohexene的减少（η 2 -C 2 H ^ 4）L- 2给出cyclohexyne镍（0）络合物的Ni（η 2 -C 6 H ^ 8）L- 2 [L 2 = 2PPh 3（1），dcpe（2），2PEt 3（3）; dcpe = 1,2-双（二环己基膦基）乙烷，Cy 2 PCH 2 CH 2 PCy 2 ]，其结构类似于相应的Platinum（0）化合物，但稳定性较差。的晶体结构2已确定。分子中含有结合到η镍原子2 -cyclohexyne [Ni基C（1）= 1.875（4），镍- C（2）= 1.867（4）]并DCPE [镀Ni-P（1）= 2.139（1）Å，Ni-P（2）= 2.138（1）Å]。几何形状是接近三角平面如果协调三键的中点被视为占据一个配位位置，而C的距离c [1.272（5）]比在铂（略少η 2 -C 6

  DOI：

  10.1021/om9504516

文献信息

• Coupling of Heteroarene and Arenol via Nickel‐Catalyzed C−H/C−OH Activation
  作者：Chen‐Hsun Hung、Ting‐Hsuan Wang、Glenn P. A. Yap、Joon Ching Juan、Tiow‐Gan Ong

  DOI：10.1002/cctc.202300249

  日期：2023.6.9

  A nickel-catalyzed heteroarene C−H/arenol C−OH coupling reaction is reported, which omits the use of strong Lewis-acid additive and low atom-economy protecting reagent. Arrays of arenols and heteroarenes are effective in this protocol using the in-situ activating reagent pivalic anhydride.

  报道了镍催化的杂芳烃 C-H/芳醇 C-OH 偶联反应，该反应省略了强路易斯酸添加剂和低原子经济性保护试剂的使用。arenols 和 heteroarenes 的阵列在该协议中使用原位激活试剂 pivalic 酸酐是有效的。
• New nickel-containing homogeneous hydrogenation catalysts
  作者：Ingrid M. Angulo、Elisabeth Bouwman、Remy van Gorkum、Sandra M. Lok、Martin Lutz、Anthony L. Spek

  DOI：10.1016/s1381-1169(03)00216-4

  日期：2003.8

  The didentate phosphane ligands 1,3-bis(di(ortho-methoxyphenyl)phosphanyl)-2-propanol (o-MeO-dpppol) and 1,2-bis(dicyclohexylphosphanyl)ethane (dcpe) have been used in a study towards catalytic hydrogenation using homogeneous nickel catalysts. The nickel halide complexes [Ni(o-MeO-dpppol)X-2] and [Ni(dcpe)X-2] (X = Cl, Br or I) have been synthesized and were characterized using electronic absorption and IR spectroscopy. The structures of the complexes [Ni(o-MeO-dpppol)Cl-2] and [Ni(dcpe)Cl-2] have been determined by X-ray crystallography. The nickel ions in these complexes are in (distorted) square-planar geometries with NiP2Cl2 chromophores. The synthesized halide complexes and in situ mixtures of nickel acetate and the ligands were tested on catalytic activity in homogeneous hydrogenation. The ligand dcpe yields very active catalysts; turnover numbers up to 3000 in I h have been obtained. Generally, it appeared that the catalytic activities are higher in methanol than in methanol/dichloromethane mixtures. It was found that the catalytic activities observed for complexes containing the ligand o-MeO-dpppol are less reproducible than those of catalysts with the ligand dcpe. This lower reproducibility is probably related to the fact that the former ligand is more readily oxidized. (C) 2003 Elsevier Science B.V. All rights reserved.
• Jimenez Tenorio, Manuel; Puerta, M. Carmen; Valerga, Pedro, Journal of the Chemical Society, Dalton Transactions
  作者：Jimenez Tenorio, Manuel、Puerta, M. Carmen、Valerga, Pedro

  DOI：——

  日期：——
• A Convergent Approach to the Synthesis of Multimetallic Dithiolene Complexes
  作者：Kuppuswamy Arumugam、Rongmin Yu、Dino Villagrán、Thomas G. Gray、Joel T. Mague、James P. Donahue

  DOI：10.1021/ic800880s

  日期：2008.7.7

  Controlled base hydrolysis of one or both of the protected 1,2-dithiolene chelates of 1,3,5,7-tetrathia-s-indacene-2,6-dione (O = CS2C6H2S2C = O) enables the stepwise synthesis of di- and trimetallic complexes with 1,2,4,5-benzenetetrathiolate as the connector. Treatment of O = CS2C6H2S2C = O with MeO-, followed by [NiBr2(dcpe)] [dcpe = 1,2-bis(dicyclohexylphosphino)ethane], yields [(dcpe)Ni(S2C6H2S2C = O)] (4). The reaction of 4 with EtO-, followed by [MX2(dcpe)] (X = halide), yields [(dcpe)Ni-(S2C6H2S2)M(dcpe)] [M = Ni (5a), Pd (5b)]. Deprotection of the 1,3-dithiol-2-one group of 4, followed by introduction of (1)/(2) equiv Of MX2 and then 12, yields the neutral trimetallic compounds [(dcpe)Ni(S2C6H2S2)](2)M [M = Ni (6a), Pt (6b)]. Tetrahedralization at nickel is observed in 5a, which density functional theory calculations attribute to second-order Jahn-Teller effects, while 6a and 6b display an end-to-end folding of similar to 46 degrees. A color darkening is observed in moving from 4 to compounds 6 due to the increasing size of the conjugated metal-organic 7 system. Intense, broad absorptions in the near-IR are observed for 6a and 6b.