Abstract
Several new acridinium esters 2–9 having their central acridinium ring bearing a 9‐(2,5‐dimethylphenoxycarbonyl), 9‐(2,6‐bis(trifluoromethyl)phenoxycarbonyl) or 9‐(2,6‐dinitrophenoxycarbonyl) group, and a 10‐methyl, 10‐(3‐(succinimidyloxycarbonyl)propyl), 10‐(5‐(succinimidyloxycarbonyl)pentyl), or 10‐(10‐(succinimidyloxycarbonyl)decyl) group, have been synthesized and their chemiluminescent properties have been tested. The 2,5‐dimethylphenyl acridinium esters emit light slowly (glow) when treated with alkaline hydrogen peroxide, while the 2,6‐dinitrophenyl and 2,6‐bis(trifluoromethyl)phenyl esters emit light rapidly (flash). The substituent at the 10 position affects the hydrolytic stabilities of the compounds.
Several new acridinium esters, having different groups at the 9‐ and 10‐positions of the acridinium ring, have been synthesized and their chemiluminescent properties have been investigated. The substituents have an effect on the kinetics of emission and the hydrolytic stability of the synthesized acridinium esters.