Efficient synthesis of pyrene-1-carbothioamides and carboxamides. Tunable solid-state fluorescence of pyrene-1-carboxamides

Abstract

This paper discloses efficient synthesis of pyrene-1-carbothioamides and carboxamides<italic>via</italic>Friedel–Crafts reaction of pyrene with isocyanates followed by oxidative desulfuration. The amides display solid-state fluorescence with quantum yields up to 62%, originating from monomers, aggregates or excimers.