Abstract
Porphyrin-porphyrin and porphyrin-chlorin dimers have been synthesized and evaluated for their photo-physical and in vivo photodynamic therapy properties. Two of them can become potential new photosensitizers. Study of the reactivity of meso-tetraaryl porphyrins, as dienophiles, in Diels-Alder transformations and as dipolarophiles in 1,3-dipolar cycloadditions, has been undertaken. New synthetic methodologies for certain chlorin, bacteriochlorin and isobacteriochlorin type macrocycles, with potential biological significance, have been established.
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