(μ-η2-3-methoxy-3-methylbut-1-yne)dicobalt hexacarbonyl | 65966-25-8

• 英文名称: (μ-η2-3-methoxy-3-methylbut-1-yne)dicobalt hexacarbonyl
• 英文别名: (μ-η²-3-methoxy-3-methylbut-1-yne)dicobalt hexacarbonyl
• CAS: 65966-25-8
• 化学式: C₁₂H₁₀Co₂O₇
• 分子量: 384.194
• InChiKey: OJUOHYGQTBPPPJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 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：

  3-氯-3-甲基-1-丁炔 、 dicobalt octacarbonyl 在 CH₃OH 作用下， 以 乙醚 为溶剂， 以50.5%的产率得到(μ-η2-3-methoxy-3-methylbut-1-yne)dicobalt hexacarbonyl
  参考文献：
  名称：

  Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Co: Org.Verb.2, 2.2.2.5, page 87 - 101

  摘要：

  DOI：

文献信息

• Kim, P. J.; Hagihara, N., Bulletin of the Chemical Society of Japan, 1968, vol. 41, p. 1184 - 1187
  作者：Kim, P. J.、Hagihara, N.

  DOI：——

  日期：——
• Acquiring and Exploiting Persistency of Propargyl Radicals: Novel Paradigms
  作者：Gagik G. Melikyan、Ryan Davis、Samantha Cappuccino

  DOI：10.1021/acs.organomet.6b00435

  日期：2016.9.12

  Three complementary methods for altering an intrinsic nature of propargyl radicals, from transient to persistent, were developed by fine-tuning the bulkiness and degree of substitution around the secondary and tertiary propargylic carbons, as well as by sterically enhancing a pi-bonded Co-2(CO)(6) metal core. The latter was employed, as a mechanistic tool, for precluding an acetylene allene rearrangement, stabilizing propargyl cations, and creating a steric hindrance that could provide for said transition from transient to persistent propargyl radicals. A window of opportunities was identified wherein the steric bulkiness in propargyl radicals remains below the "persistency threshold", providing good to excellent stereoselectivities in radical dimerization reactions (d,l 62-100%). Along with the persistency threshold for tertiary propargyl radicals (278.2 angstrom(3)), two different thresholds for persistency in secondary propargyl radicals were established-306.5 and 576.0 angstrom(3)-dependent upon the molecular architecture and the nature of the substituents populating the radical centers. Three alternative molecular platforms were designed to exploit a newly acquired dichotomy in allylic radicals (alpha-persistent-gamma-transient) and trichotomy in pentadienyl radicals (alpha-persistent-gamma-transient-epsilon- transient), providing access to molecular assemblies with contiguous 4 degrees-4 degrees, 4 degrees-3 degrees, and 3 degrees-3 degrees carbon atoms.