Synthesis and fluorescence analysis of 3-substituted 7-dialkylamino-2H-1, 4-benzoxazin-2-ones.

…, J Roncali, F Garnier, R Guglielmetti

Index: Trebaul, Claude; Roncali, Jean; Garnier, Francis; Guglielmetti, Robert Bulletin of the Chemical Society of Japan, 1987 , vol. 60, # 7 p. 2657 - 2662

Full Text: HTML

Citation Number: 9

Abstract

New benzoxazinone type dyes have been synthesized by the reaction of α-keto esters on 2- amino-5-(dialkylamino) phenols. The obtained 7-dialkylamino-2H-1, 4-benzoxazin-2-ones show a strong fluorescence and a large Stokes shift, reaching 183 nm. An effect of 15 various substituents in position 3, together with a solvent effect have been characterized on their absorption and emission bands. Linear free energy relationships allow the tuning of ...