Synthesis of non-symmetrical triarylphosphine oxide with fluorophore groups.

The Mitsunobu reaction of tris(2-hydroxyphenyl)phosphine oxide with N-(3-hydroxypropyl)-4-nitro-1,8-naphthalimide resulted in alkylation of only two phenolic groups. The aromatic nitro groups of the synthesized product were replaced by the BuNH groups by the reaction with butylamine. The synthesized product exhibited fluorophore properties. [ABSTRACT FROM AUTHOR]