One-pot syntheses of blue-luminescent 4-aryl-1<i>H</i>-benzo[<i>f</i>]isoindole-1,3(2<i>H</i>)-diones by T3P<sup>®</sup> activation of 3-arylpropiolic acids
situ activation of 3-arylpropiolic acids with T3P® (n-propylphosphonic acid anhydride) initiates a dominoreaction furnishing 4-arylnaphtho[2,3-c]furan-1,3-diones in excellent yields. Upon employing these anhydrides as reactive intermediates blue-luminescent 4-aryl-1H-benzo[f]isoindole-1,3(2H)-diones are formed by consecutive pseudo three-component syntheses in a one-pot fashion. The Stokes shifts correlate