Synthesis and X-ray crystal structure of 27-oxa-25,29-dithiasapphyrin: Bithiophene-containing sapphyrins have an inverted structure

초록

Acid-catalyzed condensation of 16-oxa-5,10,15,17-tetrahydrotripyrrin and 5,5′-bis(tolylhydroxymethyl)-2,2′-bithiophene gives 5,20-ditolyl-27-oxa-25,29-dithiasapphyrin. The X-ray crystal structure revealed this sapphyrin derivative has an O-inverted structure.