chlorobis(dimethylglyoximato)(4-tert-butylpyridine)cobalt | 38985-28-3

• 英文名称: chlorobis(dimethylglyoximato)(4-tert-butylpyridine)cobalt
• CAS: 38985-28-3
• 化学式: C₁₇H₂₇ClCoN₅O₄
• 分子量: 459.879
• InChiKey: QNWGUANTKRXFRI-DVTASQICSA-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：

  1-溴-2,2-二氟乙烷 、 chlorobis(dimethylglyoximato)(4-tert-butylpyridine)cobalt 在 NaBH₄ 作用下， 以 甲醇 为溶剂， 以57%的产率得到bis(dimethylglyoximato)(4-tert-butylpyridine)(2,2-difluoroethyl)cobalt
  参考文献：
  名称：

  （氟烷基）-和（氟环烷基）钴肟的合成，表征和反应性：（2-氟环己基）钴肟配合物的分子结构和2-氟环烷基配体的受阻旋转

  摘要：

  Ph 3 P- [Co] -（[Co] = Co（dmgH）2； dmgH 2 =二甲基乙二肟）的反应，是通过在NaHH 4中用NaOH的甲醇溶液与BrCH 2还原Ph 3 P- [Co] -Cl来制备的。CH 2 CH 2 F导致形成Ph 3 P- [Co] -CH 2 CH 2 CH 2 F（3）。在中性甲醇溶液中py *-[Co] -H / py *-[Co] -（py * = py，4-（t -Bu）py，3-Fpy; 4-（t -Bu ）py = 4-叔-丁基吡啶，3-Fpy = 3-氟吡啶）与BrCH 2 CHF 2反应，得到2,2-二氟乙基络合物py *-[Co] -CH 2 CHF 2（py * = py（4a），4 -（t -Bu）py（4b），3-Fpy（4c））。XCH 2 CH 2 F（X = Br，TfO; TfO = triflate）与还原的钴肟在碱性和中性甲

  DOI：

  10.1021/om030525a
• 作为产物：
  描述：

  4-叔丁基吡啶 、 chloropyridinecobaloxime(III) 以 氘代乙腈 为溶剂， 生成 chlorobis(dimethylglyoximato)(4-tert-butylpyridine)cobalt
  参考文献：
  名称：

  Impact of Ligand Exchange in Hydrogen Production from Cobaloxime-Containing Photocatalytic Systems

  摘要：

  Ligand exchange on the Co(dmgH)(2)(py)Cl water reduction catalyst was explored under photocatalytic conditions. The photosensitizer fluorescein was connected to the catalyst through the axially coordinated pyridine. While this two-component complex produces H(2) from water under visible light irradiation in the presence of triethanolamine (TEOA), it is less active than a system containing separate fluorescein and [Co(III)(dmgH)(2)(py)Cl] components. NMR and photolysis experiments show that the Co catalyst undergoes pyridine exchange. Interestingly, glyoximate ligand exchange was also observed photocatalytically and by NMR spectroscopy, thereby showing that integrated systems in which the photosensitizer is linked directly to the Co(dmgH)(2)(py)Cl catalyst may not remain intact during H(2) photogeneration. These studies have also given rise to insights into the catalyst decomposition mechanism.

  DOI：

  10.1021/ic2010166

文献信息

• Photoinduced Cobalt Catalyzed Radical Heck-Type Reaction of Alkyl Electrophiles
  作者：Shijia Gou、Chenyue Li、Tiantian Liang、Chengyi Peng、Feng Bao、Chenggui Wu、Fei Ye

  DOI：10.1021/acs.orglett.3c03676

  日期：2023.12.15

  We report here a general alkylation reaction of terminal alkenes with nucleophilic cobaloxime complex catalysis under visible light irradiation. A broad range of vinyl arenes and heteroarenes, as well as a diverse set of alkyl(pseudo)halides or strained rings as alkyl electrophiles, can efficiently undergo the transformation up to the gram scale. Mechanistic study reveals the radical nature of the

  我们在此报告了在可见光照射下亲核钴肟配合物催化末端烯烃的一般烷基化反应。多种乙烯基芳烃和杂芳烃，以及多种烷基（拟）卤化物或作为烷基亲电子试剂的张力环，可以有效地进行克级的转化。机理研究揭示了反应的激进性质，并证实了我们涉及烷基钴肟作为关键中间体的设计。