CoBr(PPh3)3 | 26398-06-1

• 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: CoBr(PPh3)3
• 英文别名: [BrCo(PPh₃)₃]
• CAS: 26398-06-1
• 化学式: C₅₄H₄₅BrCoP₃
• 分子量: 925.77
• InChiKey: LYXCOWDNXMNWLE-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  11.18
• 重原子数：
  59.0
• 可旋转键数：
  12.0
• 环数：
  9.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  CoBr(PPh3)3 、 1,2-Ethanedithiol, disodium salt 以 甲醇 、 1,2-二氯乙烷 为溶剂， 生成
  参考文献：
  名称：

  A low-valence cobalt cluster formed via capture of sulphur atom from ethanedithiol - synthesis and crystal structure of [Co7(μ4-S)3(μ3-S)3(PPh3)6Br] · CH3OH

  摘要：

  The low-valence cobalt cluster [Co7(mu4-S)3(mu3-S)3(PPh3)6Br] (1) was isolated from the reaction of Co(PPh3)3Br with Na2edt in ethylene chloride. The skeleton [Co7S6]+ of 1 can be represented as a monocapped-prismane formed by the addition of the capping atom cobalt to the prismane [Co6S6] as shown by X-ray single-crystal structure analysis. In this reaction the S2- ion is derived from the edt2- ion through cleavage of the C-S bond, and incorporated into the building process.

  DOI：

  10.1016/0022-328x(93)80301-q
• 作为产物：
  描述：

  cobalt(II) bromide 在 三苯基膦 、 锌 作用下， 以 四氢呋喃 、 乙醇 为溶剂， 以42%的产率得到CoBr(PPh3)3
  参考文献：
  名称：

  Hydrodimerization of Methyl Acrylate Catalyzed by Halogenotris(triphenylphosphine)cobalt

  摘要：

  丙烯酸甲酯在甲醇溶液中通过CoX(PPh3)3(X＝卤素)加氢二聚成己二酸二甲酯。由卤化钴、三苯基膦和锌原位制备的钴配合物在碱金属卤化物存在下可产生更高产率的氢化二聚体。提出了一种机制，涉及 Co(I)-丙烯酸甲酯 π-络合物的质子化，得到 (2-甲氧基羰基乙基) 钴络合物，然后进一步添加丙烯酸甲酯。

  DOI：

  10.1246/bcsj.54.1015
• 作为试剂：
  描述：

  丙炔醚 、 9-benzyl-6-(phenylethynyl)-9H-purine 在 CoBr(PPh3)3 作用下， 以 甲苯 为溶剂， 反应 16.0h， 以88%的产率得到9-benzyl-6-(6-phenyl-1,3-dihydroisobenzofuran-5-yl)-9H-purine
  参考文献：
  名称：

  Cocyclotrimerization of 6-Alkynylpurines with α,ω-Diynes as a Novel Approach to Biologically Active 6-Arylpurines

  摘要：

  Transition metal complex catalyzed cocyclotrimerization of 6-alkynylpurines 1 with various diynes enables the preparation of a plethora of substituted 6-arylpurines 3 in good yields. The most general catalyst for the reaction is a user-friendly system based on a nickel-phosphine complex and reductant (NiBr2(dppe)/Zn) in MeCN. The reaction conditions are compatible with various protective groups on the purine moiety (Bn, THP). As far as other potential catalysts were concerned, only CoBr(PPh3)(3) showed reasonable activity in cocyclotrimerization of alkynylpurines with dipropargyl ether. A comparison of catalytic with stoichiometric approaches and the ligand effect in the catalyst is also given. Cytostatic activity screening of title 6-arylpurines was performed and several moderately active compounds were found.

  DOI：

  10.1021/jo0486342

文献信息

• Reactions of the octahydrotriborate(1–) anion, [B₃H₈]^–, with some complexes of cobalt(<scp>I</scp>), cobalt(<scp>II</scp>), rhodium(<scp>I</scp>), and iridium(<scp>I</scp>), and the characterization of the ‘borallyl’ complex [Ir^III(η³-B₃H₇)(CO)H(PPh₃)₂]
  作者：Norman N. Greenwood、John D. Kennedy、David Reed

  DOI：10.1039/dt9800000196

  日期：——

  octahydrotriborate(1–) anion, [B3H8]–, reacts with amine and tertiary phosphine complexes of cobalt(I) and cobalt(II) halides to give arachno-triborane-ligand adducts, B3H7L, together with B2H4L2 and BH3L (where L = pyridine or tertiary phosphine). A similar reaction occurs with trans-[RhI(CO)Cl(PPh3)2] and with [IrI(CO)Cl(PPh3)2]. The latter complex also yields the novel ‘borallyl’ compound [IrIII(η3-B3H7)(CO)H(PPh3)2]

  八氢三硼酸酯（1-）阴离子[B 3 H 8 ] -与钴（I）和卤化钴（II）的胺和叔膦配合物反应生成芳族-三硼烷-配体加合物B 3 H 7 L具有B 2 H 4 L 2和BH 3 L（其中L =吡啶或叔膦）。反式-[Rh I（CO）Cl（PPh 3）2 ]和[Ir I（CO）Cl（PPh 3）2发生类似的反应]。后者复杂也产生了新的'borallyl'化合物的[Ir III（η 3 -B 3 ħ 7）（CO）H（PPH 3）2 ]，其也可被描述为巢-iridatetraborane，[（IRB 3 ħ 7）（CO）H（PPh 3）2 ]。讨论了该化合物的光谱性质和结构。[B 3 H 8 ] -离子不与[Ir I（CO）（dppe）2 ] +反应，但与[Ir I（dppe）2 ] +反应转化为[Ir III H 2（dppe）2 ] +（dppe = Ph 2 PCH 2 CH 2 PPh 2）。
• Simpler and Cleaner Synthesis of Variously Capped Cobalt Nanocrystals Applied in the Semihydrogenation of Alkynes
  作者：A. Sodreau、A. Vivien、A. Moisset、C. Salzemann、C. Petit、M. Petit

  DOI：10.1021/acs.inorgchem.0c01641

  日期：2020.10.5

  synthesis is performed at room temperature in the presence of ecofriendly fatty alcohols to passivate Co NCs. Through a recycling step, the yield of Co NCs is improved and the waste generation is limited, making this synthetic route cleaner. After an easy exchange of the capping ligands, we applied them as unsupported catalysts in the stereoselective semihydrogenation of alkynes.

  与经典的有机金属方法不同，我们在此报告一种合成途径，不需要还原源或加热即可产生均质的六方密堆积钴纳米晶体（Co NCs）。涉及歧化过程，这种简单，快速（6分钟）的合成是在室温下，在环境友好的脂肪醇存在下钝化Co NCs的过程中进行的。通过回收步骤，可提高Co NCs的产量，并减少废物产生，从而使这种合成路线更清洁。在轻松更换封端配体后，我们将它们用作炔烃的立体选择性半氢化反应中的非负载型催化剂。
• A novel phenoxy-bridged polynuclear cobalt complex. Synthesis and structural characterization of [Co7Na2(1,2-OSC6H4)8(DMF)12]·2DMF·H2O
  作者：Maochun Hong、Feilong Jiang、Xiaoying Huang、Weiping Su、Wenjie Li、Rong Cao、Hanqin Liu

  DOI：10.1016/s0020-1693(96)05414-x

  日期：1997.3

  polynuclear cobalt complex [Co 7 Na 2 (1,2-OSC 6 H 4 ) 8 (DMF) 12 ] was obtained from the reaction of CoBr(PPh 3 ) 3 with Na 2 (1,2-OSC 6 H 4 ) (H 2 mp= o -mercaptophenol) in DMF and its crystal structure has been determined by single crystal X-ray diffraction analysis. The molecular structure contains nine layers. The cobalt and sodium atoms are arranged in nearly linear chain configuration and bridged by 1

  CoBr（PPh 3）3与Na 2（1,2-OSC 6 H 4）的反应得到了一种新型的多核钴配合物[Co 7 Na 2（1,2-OSC 6 H 4）8（DMF）12]。 ）（H 2 mp =邻巯基苯酚）在DMF中的结晶，并通过单晶X射线衍射分析确定了其晶体结构。分子结构包含九层。钴和钠原子以几乎线性的链状排列，并通过它们的氧原子与1,2-OSC 6 H 4 2-和DMF配体桥接。
• A tetranuclear cobalt complex with mercaptopyridine N-oxide as ligand. Synthesis and crystal structure of [Na3Co4(μ3-O)2-(mpo)8(DMF)4]Br·2DMF (mpo = 2-mercaptopyridine-N-oxide)
  作者：Feilong Jiang、Maochun Hong、Xiulan Xie、Rong Cao、Beisheng Kang、Daxu Wu、Hanqin Liu

  DOI：10.1016/0020-1693(94)04349-z

  日期：1995.3

  A new compound [Na3Co4(mu 3-O)(2)(mpo)(8)(DMF)(4)]Br . 2DMF (1) was prepared by reacting CoBr(PPh(3))(3) and Nampo (mpo = 2-mercaptopyridine-N-oxide), and structurally characterized by X-ray diffraction methods. The title compound crystallizes in the triclinic space group with a = 13.393(7), b = 14.00(1), c = 13.029(4) Angstrom, alpha = 92.29(4), beta = 110.56(3), gamma = 115.32(4)degrees, V = 2015(2) Angstrom(3), Z = 1 and R (R(W)) = 0.047 (0.053) for 1820 reflections (I>3 sigma(I)). The complex contains four cobalt atoms in the form of a square plane with indirect metal-metal bonds. Each Co atom is coordinated by two bidentate mpo ligands with StOb-D and StOb-T coordination modes, respectively. Two Co-2(mpo)(4)O groups each bridged by mu(3)-O in the Na3Co4 core are linked by Na-3 through the oxygen atoms of the mpo ligands and the bridging mu(3)-O atoms to form a dumbbell-like structure. The structure of the symmetric tetracobalt cation [Na3Co4(mu(3)-O)(2)(mpo)(8)(DMF)(4)](+) possesses a crystallographic inversion center through the Na(1) atom. The relevance of the spectroscopic and magnetic properties to the structure of 1 is also discussed.