Phenyl

A phenyl group (Ph or C6H5) is the term used for a benzene ring directly attached to a substituent, such as in triphenylphosphine (C6H5)3P  or phenyl alcohol (PhOH, a.k.a. “phenol”).  Do not confuse with benzyl (Bn), which is the substituent C6H5CH2– ! (e.g. benzyl alcohol, C6H5CH2OH).

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