[W(CCCPh)(CO)₂(κ³-hydrotris(3,5-dimethylpyrazol-1-yl)borate)] | 410523-97-6

• 英文名称: [W(CCCPh)(CO)₂(κ³-hydrotris(3,5-dimethylpyrazol-1-yl)borate)]
• 英文别名: dicarbonyl[hydro(tris-3,5-dimethylpyrazol-1-yl)borato](phenylpropynylidyne)tungsten
• CAS: 410523-97-6
• 化学式: C₂₆H₂₇BN₆O₂W
• 分子量: 650.2
• InChiKey: SQYJKUMTNKBLHS-UHFFFAOYSA-N

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

• 作为产物：
  描述：

  三(3,5-二甲基-1-吡唑基)硼氢化钾 在 copper(l) iodide 、 四(三苯基膦)钯 、 三乙胺 作用下， 以 乙二醇二甲醚 为溶剂， 反应 78.0h， 生成 [W(CCCPh)(CO)₂(κ³-hydrotris(3,5-dimethylpyrazol-1-yl)borate)]
  参考文献：
  名称：

  [C 1 + C 2 ]途径生成炔丙炔配合物†

  摘要：

  由[Pd（PPh 3）4 ]和CuI介导的[W（CBr）（CO）2（Tp *）]（Tp * =氢三（二甲基吡唑基）硼酸酯）与一系列末端炔烃（RC CH）的反应，得到新的丙二炔[W（C–C CR）（CO）2（Tp *）] [R = t Bu，C 6 H 4 X（X = H，NH 2，NO 2），二茂铁基，APh 3（A ＝ C，Si，Ge），B（O 2 CCH 2）2 NMe]。用Ph 2 Si（C CH）2类似处理[W（CBr）（CO）2（Tp *）]生成双钨辛酸酯[W 2（μ- C6）（CO）4（Tp *）2 ]，而双金属配合物[W 2 {μ-（CC C）2 SiPh 2 }（CO）4（Tp *）2 ]由[W（CBr）（CO）2（Tp *）]和Ph 2 Si（C CSnPh 3）2获得的化合物与[AuCl（THT）]（THT =四氢噻吩）反应，提供四金属配合物[W 2金2 {μ-（CC C）2

  DOI：

  10.1039/c9dt00876d

文献信息

• The significance of phosphoniocarbynes in halocarbyne cross-coupling reactions
  作者：Liam K. Burt、Richard L. Cordiner、Anthony F. Hill、Richard A. Manzano、Jörg Wagler

  DOI：10.1039/d0cc02070b

  日期：——

  Competent intermediates as well as productive and non-productive tangents have been identified in the catalytic cycle for palladium(0)–copper(i) mediated synthesis of propargylidynes via cross coupling reactions of bromocarbyne complexes with alkynes.

  在钯（0）-铜（i）催化合成丙炔基炔烃的过程中，已经确定了能干的中间体以及有产物和无产物的分支反应。这是通过溴代碳基炔烯与炔烃的交叉偶联反应实现的。
• Alkynylcarbyne complexes containing various tri- and bidentate ligands such as cyclopentadienide, tris(pyrazolyl)borate, bis(pyrazolyl)acetate and tmeda: synthesis and spectroscopic properties
  作者：Birgit Schwenzer、Joachim Schleu、Nicolai Burzlaff、Christoph Karl、Helmut Fischer

  DOI：10.1016/s0022-328x(01)01310-9

  日期：2002.1

  The (alkynylcarbyne) tungsten complexes [L-3(CO)(2)WdropC-CdropC-R] (3a,b-6a,b) [L-3 = hydro[tris(3,5-dimethylpyrazol-1-yl)]borato (Tp', 3), hydro[tris(pyrazol-1-yl)]borato (Tp, 4), cyclopentadienyl (Cp, 5), bis(3,5-dimethylpyrazol-1-yl)acetato (bdmpza, 6); R = SiMe3 (a), Ph (b)] were prepared in a stepwise fashion from [W(CO)(6)] and Li[CdropCR], (CF3CO)(2)O and M[L-3] (M = Na, K). The formation of 6a,b was highly selective, only complexes with a trans arrangement of the carboxylate group of bdmpza and the alkynylcarbyne ligand were detected. The reaction of [W(CO)(6)] with Li[CdropCR], C2O2Cl2 and tmeda afforded trans[Cl(CO)(2)(tmeda)WdropC-CdropC-R] (7a,b). The electron-donating potential of the different tripodal ligands L-3 was studied by IR- and C-13-NMR spectroscopy and compared to that of the ligand combination Cl/tmeda. The IR data suggest that in these complexes bdmpza is a weaker electron donor than Tp' and Tp but displays stronger electron-donating abilities than Cp. The structures of 6b and 7b were established by X-ray structural analyses. (C) 2002 Elsevier Science B.V. All rights reserved.