%0 Journal Article %A Karthik, Ganesan %A Srinivasan, A. %A Chandrashekar, Tavarekere K. %D 2014 %T meso-Aryl Core-Modified Fused Sapphyrins: Syntheses and Structural Diversity %U https://acs.figshare.com/articles/journal_contribution/_i_meso_i_Aryl_Core_Modified_Fused_Sapphyrins_Syntheses_and_Structural_Diversity/2277862 %R 10.1021/ol501395t.s001 %2 https://acs.figshare.com/ndownloader/files/3914179 %K Fused %K macrocyclic framework %K tripyrrane %K diversity %K DTT %K Sapphyrin %K selenophene ring %K Structural DiversityTwo %K Synthese %K diol %K protons shifts %K heteroatom %K thiophene ring %K sapphyrins 3 %K porphyrin %K condensation %K dithienothiophene %K sapphyrins exhibit %K precursor %K equilibrium %X Two new, fused core-modified expanded porphyrins, sapphyrins 3 and 4, were synthesized by a simple acid-catalyzed condensation of electron-rich and rigid precursor, dithienothiophene (DTT) diol, and core-modified tripyrrane. These sapphyrins exhibit structural diversity depending upon the heteroatom present in the macrocyclic framework, where the thiophene ring is inverted in 3, while the selenophene ring in 4 exists in normal and inverted form in the free base and addition of two protons shifts the equilibrium to inverted form. %I ACS Publications