One-pot synthesis of a white-light emissive bichromophore operated by aggregation-induced dual emission (AIDE) and partial energy transfer.

Merocyanine-triarylamine bichromophores are readily synthesized by sequentially Pd-catalyzed insertion-alkynylation-Michael-Suzuki four-component reactions. White-light emissive systems form upon aggregation in 1 : 99 and 0.1 : 99.

One-pot syntheses of blue-luminescent 4-aryl-1-benzo[]isoindole-1,3(2)-diones by T3P activation of 3-arylpropiolic acids.

In situ activation of 3-arylpropiolic acids with T3P (-propylphosphonic acid anhydride) initiates a domino reaction furnishing 4-arylnaphtho[2,3-]furan-1,3-diones in excellent yields. Upon employing these anhydrides as reactive intermediates blue-luminescent 4-aryl-1-benzo[]isoindole-1,3(2)-diones are formed by consecutive pseudo three-component syntheses in a one-pot fashion. The Stokes shifts correlate excellently with the Hammett-Taft σ parameter indicating an extended degree of resonance stabilization in the vibrationally relaxed excited singlet state.

Diversity-oriented synthesis of intensively blue emissive 3-hydroxyisoquinolines by sequential Ugi four-component reaction/reductive Heck cyclization.

A convergent approach to highly functionalized 3-hydroxyisoquinolines is reported. The key steps are an Ugi multicomponent reaction and a subsequent intramolecular reductive Heck reaction; these can also be performed as a one-pot procedure. The structures display very interesting properties as blue-fluorescence emitters.