A one step synthesis of boronated meso-tetraphenylporphyrins

Abstract

5,10,15,20-Tetrakis(4-aminophenyl)porphyrin and their metal complexes were used for a one stage synthesis of boronated porphyrins with elevated boron content (~30-35%). The reaction of amino groups in para position of porphyrin phenyl rings with carborane triflates, epoxides and isocyanates smoothly led to carboranylsubstituted secondary amines, amino alcohols and amides potentially applicable in anticancer boron neutron capture therapy (BNCT). 5-(4-Aminophenyl)-10,15,20-triphenylporphyrin was used as a model compound in reactions with above mentioned functionally substituted carboranes. © ISUCT Publishing.