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The synthesis and fluorescence of novel N ‐substituted‐1,8‐naphthylimides
Author(s) -
Yuan Dongwu,
Brown Robert G,
Hepworth John D,
Alexiou Michael S,
Tyman John H. P.
Publication year - 2008
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570450216
Subject(s) - chemistry , substituent , quantum yield , fluorescence , yield (engineering) , solvent , absorption (acoustics) , photochemistry , medicinal chemistry , organic chemistry , physics , materials science , quantum mechanics , acoustics , metallurgy
The synthesis and characterisation of a series of novel 4‐acylamino and 4‐alkylamino‐ N ‐1,8‐naphthalimides is described. The UV‐visible absorption and emission properties of the compounds are reported. Significant solvent effects are noted for 4‐ n ‐butyl‐9‐ n ‐butyl‐1,8‐naphthylimide. The incorporation of acetyl and chloroacetyl groups into the 4‐substituent markedly increases the fluorescence quantum yield compared with 4‐alkylamino substituemnts.