Porphyrin synthesis in water provides new expanded porphyrins with direct bipyrrole linkages: isolation and characterization of two heptaphyrins.
The use of water for the porphyrin cyclization changes the products completely. Scandium-catalyzed aqueous condensation between pentafluorobenzaldehyde and pyrrole and subsequent oxidation provides novel expanded porphyrins with direct bipyrrole linkages, of which two novel heptaphyrins have been characterized by X-ray analyses.
Hiroto
Satoru
S
Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
Shinokubo
Hiroshi
H
Osuka
Atsuhiro
A
D018360:Crystallography, X-Ray; D008968:Molecular Conformation; D019906:Nuclear Magnetic Resonance, Biomolecular; D011166:Porphyrins / Q000138:chemical synthesis* / Q000737:chemistry / Q000302:isolation & purification; D011758:Pyrroles / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet; D014867:Water / Q000737:chemistry
D011166:Porphyrins; D011758:Pyrroles; D014867:Water