4Methylphenyl
4-Methylphenyl, also known as p-tolyl, is the aromatic substituent derived from toluene by removing one hydrogen atom from the ring. Its empirical formula is C7H7 and its common nomenclature reflects the para-position of the methyl group relative to the attachment point on the phenyl ring. The structure consists of a benzene ring bearing a methyl group at the fourth carbon, giving the group a characteristic electron-donating influence through resonance.
The 4-methylphenyl group frequently appears in organic synthesis as a protecting group or as a leaving group
In organometallic chemistry, 4-methylphenyl ligands coordinate with transition metals such as nickel, palladium, and platinum in
Safety data indicate that pure 4-methylphenyl compounds are relatively low in acute toxicity, but inhalation of