3,5-Di-tert-butylbenzaldehyde may be used in the synthesis of the following: 5-p-pyridyl-15-(3,5-di-tert-butylphenyl)porphyrin via condensation reaction with 4-pyridinecarboxaldehyde and 2,2′-dipyrrylmethane 3,5-di-tert-butylphenyl-dipyrromethane via reaction with pyrrole in the presence of trifluoroacetic acid 3,5-di-tert-butyl-2-nitrobenzaldehyde via nitration reaction