A New Picket-Fence Porphyrin Precursor. Synthesis and Atropisomerism of Free Base and Zinc Complex of meso-Tetra(o-methoxycarbonylphenyl)porphyrin

Autor: Tsutomu Fujimoto, Norikazu Nishino, Hideki Umekawa
Rok vydání: 1992
Předmět:
Zdroj: Chemistry Letters. :37-40
ISSN: 1348-0715
0366-7022
DOI: 10.1246/cl.1992.37
Popis: A new picket-fence porphyrin precursor with carboxy terminal groups has been prepared. Four atropisomers of meso-tetra(o-methoxycarbonylphenyl)porphyrin have been separated by chromatography. The conformational stability of the αααα-isomer was examined to the prolonged heating for both free base and zinc complex. The usefulness of meso-tetra(o-carbonylphenyl)porphyrin appeared to be not at all inferior to well-known meso-tetra(o-aminophenyl)porphyrin
Databáze: OpenAIRE