Chemistry Letters, Vol.40, No.5, 455-457, 2011
A Mobius Aromatic Pd(II) Complex of [28]Hexaphyrin(2.1.1.0.1.1)
Pd(II) complex of [28]hexaphyrin(2.1.1.0.1.1) 5 was prepared in 36% yield from [26]hexaphyrin(2.1.1.0.1.1) 3 via reduction with NaBH4 and subsequent metalation of 4 with Pd(OAc)(2) in the presence of triethylamine. This molecule constitutes the first example of Mobius aromatic species formed from expanded porphyrins other than the regular meso-aryl expanded porphyrins with the alternate arrangement of pyrroles and methine carbons.