5,20-Diheterohexaphyrins: metal-template-free synthesis and aromaticity switching.
Sign Up to like & getrecommendations! Published in 2019 at "Chemical communications"
DOI: 10.1039/c9cc05580k
Abstract: As the first example of expanded heteroporphyrins with heteroatoms at meso-positions, 5,20-dithiahexaphyrins and 5,20-diazahexaphyrins were synthesized via nucleophilic substitution reactions of α,α'-dibromotripyrrin as the key step. While 5,20-dithiahexaphyrins are practically nonaromatic, 5,20-[28]diazahexaphyrins show weakly antiaromatic… read more here.
Keywords: diheterohexaphyrins metal; free synthesis; aromaticity; template free ... See more keywords