Bromination of 5,10,15,20-tetraazaporphine

Authors
Chizhova, NV Khelevina, OG Berezin, BD
Citation
Nv. Chizhova et al., Bromination of 5,10,15,20-tetraazaporphine, RUSS J ORG, 36(9), 2000, pp. 1392-1395
Citations number
9
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
RUSSIAN JOURNAL OF ORGANIC CHEMISTRY
ISSN journal
10704280 → ACNP
Volume
36
Issue
9
Year of publication
2000
Pages
1392 - 1395
Database
ISI
SICI code
1070-4280(200009)36:9<1392:BO5>2.0.ZU;2-F
Abstract
Bromination of 5,10,15,20-tetraazaporphine with N-bromosuccinimide in glaci al acetic acid or chloroform involves formation of molecular complex with b romine and yields a mixture of bromo derivatives. Chromatographic separatio n of the product mixture on silica gel gave mono-,2,7-di-, 2,12-di-, 2,7,12 -tri-, and 2,7,12,17-tetrabromo-5,10,15,20-tetraazaporphines.