Ta(tetrahydroquinolinyl)2Cl3 | 181864-38-0

• 英文名称: Ta(tetrahydroquinolinyl)2Cl3
• CAS: 181864-38-0
• 化学式: C₁₈H₂₀Cl₃N₂Ta
• 分子量: 551.677
• InChiKey: GFQVQFWQSMRMIV-UHFFFAOYSA-K

计算性质

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

• 作为反应物：
  描述：

  Ta(tetrahydroquinolinyl)2Cl3 、 lithium 1,2,3,4-tetrahydroquinolide 以 四氢呋喃 、 苯 为溶剂， 生成 Ta(tetrahydroquinolinyl)5
  参考文献：
  名称：

  Homogeneous models for hydrodenitrogenation catalysis

  摘要：

  Hydrodenitrogenation (HDN) catalysis is the process of removing nitrogen from petroleum feedstocks in the form of NH3 to provide more processable and environmentally compatible liquid fuels. In practice, HDN is carried out simultaneously with other catalytic hydrotreating reactions such as hydrodesulfurization (HDS), yet HDN is significantly less well-studied than HDS. This contribution provides an overview of the heterogeneous HDN process, then outlines various homogeneous models for hydrodenitrogenation catalysis including binding modes of HDN substrates, catalytic hydrogenation processes and recent C--N bond cleavage reactions of nitrogen heterocycles. Emphasis is placed on aryloxide and alkoxide complexes of the early metals that afford some of the best homogeneous models for hydrodenitrogenation catalysis to date. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0277-5387(96)00610-9
• 作为产物：
  描述：

  3,4-dihydro-2H-quinolin-1-yl(trimethyl)silane 、 Ta(tetrahydroquinolinyl)Cl4(OEt2) 以 甲苯 为溶剂， 生成 Ta(tetrahydroquinolinyl)2Cl3
  参考文献：
  名称：

  Homogeneous models for hydrodenitrogenation catalysis

  摘要：

  Hydrodenitrogenation (HDN) catalysis is the process of removing nitrogen from petroleum feedstocks in the form of NH3 to provide more processable and environmentally compatible liquid fuels. In practice, HDN is carried out simultaneously with other catalytic hydrotreating reactions such as hydrodesulfurization (HDS), yet HDN is significantly less well-studied than HDS. This contribution provides an overview of the heterogeneous HDN process, then outlines various homogeneous models for hydrodenitrogenation catalysis including binding modes of HDN substrates, catalytic hydrogenation processes and recent C--N bond cleavage reactions of nitrogen heterocycles. Emphasis is placed on aryloxide and alkoxide complexes of the early metals that afford some of the best homogeneous models for hydrodenitrogenation catalysis to date. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0277-5387(96)00610-9

文献信息

• Tetrahydroquinolinyl Amido and Indolinyl Amido Complexes of Tantalum as Models for Substrate−Catalyst Adducts in Hydrodenitrogenation Catalysis
  作者：Peter A. Fox、Steven D. Gray、Michael A. Bruck、David E. Wigley

  DOI：10.1021/ic960298n

  日期：1996.1.1

  The reactions of TaCl5 with Me(3)SiNC(9)H(10) or LiNC9H10, where [NC9H10](-) = tetrahydroquinolinyl (the amido anion of tetrahydroquinoline), afford selective preparative routes to the complete series of amido halide complexes of tantalum(V) Ta(NC9H10)(n)Cl-5-n for n = 1-5 (compounds 1-5, respectively). The monokis(tetrahydroquinolinyl) complex is isolated as an ether adduct Ta(NC9H10)Cl-4(OEt(2)) while the complexes Ta(NC9H10)(n)Cl-5-n (n = 2-5) are found to be base-free, monomeric species. The related complexes of indolinyl [NC8H8](-) (the amido anion of indoline), Ta(NC8H8)(n)Cl-5-n(THF) for n = 1 (6) or 2 (7), have been prepared from TaCl5, Me(3)SiNC(8)H(8), and THF. An X-ray structural determination of Ta(NC9H10)(2)Cl-3 (2) reveals that it adopts a trigonal bipyramidal geometry with equatorial amido ligands that are closer to lying parallel (within) than perpendicular to the TBP equatorial plane. Routes to mixed-ligand aryloxide-amide complexes have been developed from either aryloxide or amido precursors but not from both. Thus, Ta(NC9H10)(OAr)Cl-3(OEt(2)) (8), where Ar = 2,6-(C6H3Pr2)-Pr-i, and Ta(NC8H8)(OAr)Cl-3(OEt(2)) (9) are available from reacting Ta(OAr)Cl-4(OEt(2)) with Me(3)SiNC(9)H(10) and Me(3)SiNC(8)H(8), respectively, while Ta(NC9H10)(2)(OAr)(2)Cl (10) is available from Ta(NC9H10)(2)Cl-3 (2) and excess LiOAr . OEt(2). The alkyl derivatives Ta(NC9H10)(OAr)Me(2)Cl (11), Ta(NC9H10)(OAr)Et(2)Cl (12), Ta(NC9H10)(2)(OAr)(2)Me (13), and Ta(NC9H10)Me(2)Cl(2) (14) are prepared from AlR(3) or ZnR(2) reagents and the appropriate precursor. Thermolyzing compounds 4, 5, and 11-14 in solution afforded no evidence for the formation of any eta(2)(N,C)-heterocyclic complexes arising from metalation of a NC9H10 ligand.