When a chain-terminating carbon-containing functional group is directly attached to an alicyclic ring, a special suffix must be used. The IUPAC name of a cyclohexane ring directly attached to a group

Question

When a chain-terminating carbon-containing functional group is directly attached to an alicyclic ring, a special suffix must be used. The IUPAC name of a cyclohexane ring directly attached to a $-CN$ group is:

Prashant Kotian · Accepted Answer

Correct answer: A. Because the carbon atom of the group cannot be included in the ring's carbon counting, it must be designated by the special suffix "carbonitrile". The ring is named as an intact alkane, giving Cyclohexanecarbonitrile.

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