NEW NAPHTHOCHLORINS FROM THE INTRAMOLECULAR CYCLIZATION OF BETA-VINYL-MESO-TETRAARYLPORPHYRINS

Authors
FAUSTINO MA NEVES MGPMS VICENTE MGH SILVA AMS CAVALEIRO JAS
Citation
Ma. Faustino et al., NEW NAPHTHOCHLORINS FROM THE INTRAMOLECULAR CYCLIZATION OF BETA-VINYL-MESO-TETRAARYLPORPHYRINS, Tetrahedron letters, 36(33), 1995, pp. 5977-5978
Citations number
10
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
36
Issue
33
Year of publication
1995
Pages
5977 - 5978
Database
ISI
SICI code
0040-4039(1995)36:33<5977:NNFTIC>2.0.ZU;2-K
Abstract
Treatment of nickel(II) beta-vinyl-meso-tetraphenylporphyrins with a d ilute solution of sulfuric acid affords new naphthochlorins that resul t from an intramolecular cyclization involving the vinyl group and the ortho position of the adjacent phenyl ring. These naphthochlorins are very stable compounds and exhibit strong absorptions in the 670 nm re gion of the visible spectrum.