A new synthesis of benzoporphyrins using 4,7-dihydro-4,7-ethano-2H-isoindole as an isoindole equivalent

Authors
Ito, S Ochi, N Murashima, T Uno, H Ono, N
Citation
S. Ito et al., A new synthesis of benzoporphyrins using 4,7-dihydro-4,7-ethano-2H-isoindole as an isoindole equivalent, HETEROCYCLE, 52(1), 2000, pp. 399-411
Citations number
49
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
HETEROCYCLES
ISSN journal
03855414 → ACNP
Volume
52
Issue
1
Year of publication
2000
Pages
399 - 411
Database
ISI
SICI code
0385-5414(20000101)52:1<399:ANSOBU>2.0.ZU;2-W
Abstract
Various benzoporphyrins and their metal complexes were obtained in 100% yie ld by heating porphyrins fused with bicyclo[2.2.2]octadiene at 200 degrees C. This thermal (retro Diels-Alder) reaction proceeds very cleanly to give pure benzoporphyrins without further purification.