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Related Concept Videos

Oxidation of Phenols to Quinones01:17

Oxidation of Phenols to Quinones

In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox property is crucial in...

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8-Hydroxy-2-methylquinoline.

Yousef Fazaeli, Mostafa M Amini, Shan Gao

    Acta Crystallographica. Section E, Structure Reports Online
    |January 5, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Two independent molecules of the C(10)H(9)NO compound form a hydrogen-bonded dimer. This dimer structure is stabilized by a pair of O-H⋯N hydrogen bonds, observed in the crystal lattice.

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    Area of Science:

    • Crystallography
    • Chemical Physics
    • Molecular Structure

    Background:

    • Understanding molecular interactions is crucial in chemistry.
    • Hydrogen bonding plays a significant role in stabilizing crystal structures.
    • The compound C(10)H(9)NO was investigated for its solid-state characteristics.

    Purpose of the Study:

    • To determine the crystal structure of C(10)H(9)NO.
    • To identify the intermolecular interactions present in the crystal.
    • To characterize the hydrogen bonding network within the asymmetric unit.

    Main Methods:

    • Single-crystal X-ray diffraction was employed to collect diffraction data.
    • The crystal structure was solved and refined using standard crystallographic software.
    • Analysis of the structure focused on identifying hydrogen bond donors and acceptors.

    Main Results:

    • The asymmetric unit contains two independent molecules of C(10)H(9)NO.
    • These molecules are linked by a pair of O-H⋯N hydrogen bonds.
    • The formation of a hydrogen-bonded dimer was confirmed in the crystal structure.

    Conclusions:

    • The crystal structure of C(10)H(9)NO reveals the formation of dimers through hydrogen bonding.
    • The O-H⋯N hydrogen bonds are key to the observed dimeric arrangement.
    • This finding contributes to the understanding of intermolecular forces in organic compounds.