부산대학교 도서관

The vinyl groups in protoporphyrin IX and chlorophyll a derivatives were selectively transformed into hydroxymethyl and acetoxymethyl substituents. The reactivities of β-hydroxymethyl and β-acetoxymethyl groups in porphyrins and chlorins toward nucleophilic reagents were compared for the first time using the reaction with acetylacetone as an example. Peripheral acetylacetone moieties in porphyrins and chlorins were shown to be promising as building blocks for generation of exo heterocyclic structures. [ABSTRACT FROM AUTHOR]