A porphyrin derivative from cardanol as a diesel fluorescent marker

摘要

A novel porphyrin fluorescent marker from a naturally occurring substance,cardanol,is presented.Synthetic routes were investigated to obtain an aldehyde precursor derived from cardanol and the target porphyrin;the conditions for porphyrin formation,choice of acid and reaction time were optimized.The resulting meso-tetrakis(2-methoxy-4-pentadecylphenyl)porphyrin exhibits high solubility in diesel fuel and its strong fluorescence was observed as two characteristic signals;the porphyrin marker was stable in diesel for at least 3 months.The physical properties of the diesel were unaffected by the presence of the porphyrinic marker at a concentration of 2 ppm.