Abstract An efficient, inexpensive, and mild method for the synthesis of amidoalkyl naphthols, catalyzed by 'silica sulfuric acid'(SSA), was elaborated under solvent-free conditions at room temperature. Various amidoalkyl naphthols were synthesized in high yields from aromatic or aliphatic aldehydes, α-or β-naphthols, and amides or urea or thiourea.
