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Ortho Carbon

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    40539
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    There are four sets of equivalent carbon atoms (see equivalent ligands) in the benzene ring of a monosubstituted benzene.

    orthocarbon1.png

    • A = any substituent
    • C1
    • C2 C6
    • C3 C5
    • C4

    They are labeled for identification purposes as follows.

    orthocarbon2.png

    A disubstituted benzene could exist as three constitutional isomers (1-3), which differ from one another in the relative positions of the substituents on the benzene ring and can be identified using the descriptors otho, meta, and para.

    orthocarbon3.png

    see also ortho, para directing group, meta directing group


    This page titled Ortho Carbon is shared under a All Rights Reserved (used with permission) license and was authored, remixed, and/or curated by Gamini Gunawardena via source content that was edited to the style and standards of the LibreTexts platform.

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