Pyrrolizinofluorene-embedded dithiacalixcorrole(1.0..)s.

An unprecedented synthesis of pyrrolizinofluorene moiety embedded dithiacalixcorrole(1.0..

Near-infrared absorbing nonaromatic core-modified -benzicalixhexaphyrin(1...1.1.1)s.

Stable nonaromatic core-modified -benzicalixhexaphyrins containing one -phenylene ring, four pyrrole rings and one heterocyclic ring such as furan, thiophene, selenophene and telluorophene connected four -sp carbons and two -sp carbons in a macrocyclic framework were synthesized. The -benzitripyrrane dicarbinol was condensed with 16-heterocycle tripyrranes under mild acid-catalyzed and inert conditions followed by open-air oxidation with DDQ to obtain macrocycles in 2-5% yields. The presence of two -OH groups in the -orientation at two different -sp carbons, which are adjacent to the -phenylene ring of the macrocycle, was confirmed through detailed 1D and 2D NMR studies.

Synthesis and Properties of Nonaromatic meso-fused Heterobenzihomoporphyrin(2.1.1.1)s.

Fluorene-based tripyrrane has been used as a fused precursor to synthesize three novel examples of nonaromatic meso-fused thia and selenabenzihomoporphyrin(2.1.1.