Guy Crépin Enoua, G. Uray, W. Stadlbauer
Nov 1, 2012
Citations
0
Influential Citations
9
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
Highly fluorescent and stable 3-aryl-6-methoxy-2-oxoquinoline-4-carbonitriles 6 (λexc = 408 nm and λem = 510 nm) were synthesized starting from appropriate arylmalonates 2. Ring closure reaction with p-anisidine gave 4-hydroxyquinolones 3, which could be bis-chlorinated to yield quinolines 4. Regioselective hydrolysis produced reactive 4-chloroquinolones 5, which were converted to green fluorescent 4-cyano quinolones 6 using toluenesulfinates as catalysts.