E. Sakellariou, A. Montalban, Scott L Beall
Nov 10, 2003
Citations
0
Influential Citations
34
Citations
Journal
Tetrahedron
Abstract
Abstract Co-macrocyclizations of 2,3-dipropylmaleonitrile and 2,3-di-(4-(methoxycarbonyl)phenyl)maleonitrile, respectively, with N , N ′-dibenzyl- N , N ′-di-(11-tetrahydropyranyloxy-3,6,9-trioxo-undecyl))maleonitrile and N , N , N ′, N ′-tetramethylmaleonitrile were used to prepare derivatives of the 4,5-diamino-porphyrazine systems including the zinc(II) complexes. Subsequent oxidation of the macrocycles with potassium permanganate gave the corresponding seco -porphyrazines. These were shown to be efficient sensitizers for the production of singlet oxygen ( Φ Δ =0.15–0.57) by the determination of their photophysical properties.