2,7-Dimethoxynaphthalene was employed as matrix to investigate the structure of polymetallic porphyrins via matrix-assisted laser desorption/ionization. It was also used in the synthesis of: peri-aroylnaphthalene compounds via elective electrophilic aromatic aroylation 2-amino-1,2,3,4-tetrahydronaphthalene-6,7-diol 2,7-Dimethoxynaphthalene was employed as matrix to investigate the structure of polymetallic porphyrins via matrix-assisted laser desorption/ionization. It was also used in the synthesis of: peri-aroylnaphthalene compounds via elective electrophilic aromatic aroylation 2-amino-1,2,3,4-tetrahydronaphthalene-6,7-diol