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Cover Picture: 2,7,12,17‐Tetra( p ‐butylphenyl)‐3,6,13,16‐tetraazaporphycene: The First Example of a Straightforward Synthetic Approach to a New Class of Photosensitizing Macrocycles (Eur. J. Org. Chem. 9/2003)
Author(s) -
ll Santi,
Borrell José I.,
Borrós Salvador,
Colominas Carles,
Rey Oscar,
Rubio Noemí,
SánchezGarcía David,
Teixidó Jordi
Publication year - 2003
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.200390219
Subject(s) - tetra , chemistry , cover (algebra) , glyoxal , combinatorial chemistry , photochemistry , stereochemistry , polymer chemistry , organic chemistry , medicinal chemistry , mechanical engineering , engineering
The cover picture shows a three‐dimensional model of 2,7,12,17‐tetra( p ‐butylphenyl)‐3,6,13,16‐tetraazaporphycene, the first example of a new class of sensitizing porphyrinoid macrocycles. Starting from glyoxal and ammonia, the synthetic methodology includes Suzuki and McMurry couplings, using the depicted tetrabromobiimidazole as the key intermediate. The macrocycle has excellent light absorption properties in the red and near‐infrared regions (600−800 nm), an attractive feature for biomedical applications such as photodynamic therapy. Details are discussed in the article by J. Teixidó et al. on p. 1635 ff.