tricarbonyl[η(6)-(3-(4-methylphenylethynyl))anisole]chromium | 252344-58-4

• 英文名称: tricarbonyl[η(6)-(3-(4-methylphenylethynyl))anisole]chromium
• CAS: 252344-58-4
• 化学式: C₁₉H₁₄CrO₄
• 分子量: 358.314
• InChiKey: UABMVZCNFMNURW-UHFFFAOYSA-N

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

• 作为产物：
  描述：

  4-methoxyfluorobenzenetricarbonylchromium 、 4-甲苯基乙炔 以18%的产率得到tricarbonyl[η(6)-(2-(4-methylphenylethynyl))anisole]chromium
  参考文献：
  名称：

  Nucleophilic substitution reactions of acetylides on substituted tricarbonyl(η6-fluoroarene)chromium and reactions of tricarbonyl[η6-(2-trimethylsilylethynyl)toluene]chromium and tricarbonyl[η6-(p-ethynyl-phenylethynyl)benzene]chromium with dicobalt octacarbonyl

  摘要：

  Nucleophilic substitution reactions of various acetylides on substituted tricarbonyl(eta(6)-fluoroarene)chromiums were pursued. The reaction presumably underwent a more complicated mechanism rather than the direct substitution on the fluorine-bearing carbon. The organometallic compounds (eta(6)-(C6H3RRR3)-R-1-R-2)Cr(CO)(3) (R-1: C=C-C6H4CH3, R-2: o-Me, R-3: H (5a), R-1: C=C-C6H4CH3, R-2: o-OMe, R-3: H (6a), R-1: C=C-C6H4CH3, R-2: m-OMe, R-3: H (6b), R-1: C=CPh, R-2: o-Me, R-3: o-OMe (8b), R-1: C=CPh, R-2: m-Me, R-3: m-OMe (8c), R-1: C=CSiMe3, R-2: o-Me, R-3: H (9a), R-1: C=C-C6H4C=CH, R-2: H, R-3: H (12), R-1: C=C-C6H4C=CH, R-2: o-Me, R-3: H (13)) as well as the organometallic dimmer [{(eta(6)-o-Me-C6H4)Cr(CO)(3)(di-ethynyl)] (di-ethynyl: C=C-C6H4C=C (14)) have been synthesized from nucleophilic substitution reactions of tricarbonyl(eta(6)-fluoroarene)(chromium) compounds with suitable acetylides. The products have been characterized by spectroscopic means. In addition, (8b) and (8c) were characterized by X-ray diffraction studies. Further reactions of (9a) and (12) with appropriate amount of Co-2(CO)(8) yielded mu-alkyne bridged bimetallic complexes, Co-2(CO)(6){mu-Me3SiC=C-(o-tolueneCr(CO)(3)} (10) and (Co-2(CO)(6))(2){mu-HC=C-C6H4-C=C-(benzene)Cr(CO)(3))}(15), respectively. Both (10) and (15) were characterized by spectroscopic means as well as single crystal X-ray crystallography. The core of these molecules is quasi-tetrahedron containing a Co2C2 unit. A two-dicobalt-fragments coordinated di-enyls complex, (Co-2(CO)(6))(2){mu-HC=C-C6H4-C=C-H} (17), was synthesized from the reaction of 1,3-diethynylbenzene with Co-2(CO)(8). Crystallographic studies of (17) show that it exhibits a distorted Co2C2 quasi-tetrahedral geometry. (C) 1999 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0277-5387(99)00186-2