NOVEL PORPHYRINOIDS .13. SYNTHESIS AND ELECTROPHILIC SUBSTITUTION OF NEW PARTIALLY BETA-UNSUBSTITUTED [18]PORPHYRINS

Authors
FRANCK B KRAUTSTRUNK G
Citation
B. Franck et G. Krautstrunk, NOVEL PORPHYRINOIDS .13. SYNTHESIS AND ELECTROPHILIC SUBSTITUTION OF NEW PARTIALLY BETA-UNSUBSTITUTED [18]PORPHYRINS, Liebigs Annalen der Chemie, (10), 1993, pp. 1069-1073
Citations number
36
Categorie Soggetti
Chemistry
Journal title
Liebigs Annalen der Chemie → ACNP
ISSN journal
01702041
Issue
10
Year of publication
1993
Pages
1069 - 1073
Database
ISI
SICI code
0170-2041(1993):10<1069:NP.SAE>2.0.ZU;2-K
Abstract
Three porphyrins 2, 3, and 4, related to Hans Fischer's octaethylporph yrin 1, but with unsubstituted pyrrole beta-positions were synthesized via the biladiene pathway. The ring-closing reaction to form the porp hyrin reveals a conformational control, called helical effect. These n ew porphyrins made possible an investigation of the regioselectivity o f electrophilic aromatic substitutions at the porphyrin perimeter.