Facile synthesis of functionalized urea, imidazolium salt, azide, and triazole from a 2-amino-5,7-dimethyl-1,8-naphthyridine scaffold and their utilization in fluoride ion sensing

Abstract

We report an elegant and modest synthetic route for the synthesis of four new 1,8-naphthyridine-based receptors (1a, 1b, 2, 3 and 4). Among them, 1a and 2 exhibit selective recognition of F⁻ ions.