The synthetic pathway to access fluorophores 2a-c is illustrated in Scheme 1. The first step to obtain the different arylamine-substituted alkynes is based on a Hartwig-Buchwald reaction between 1,2bis(4-bromophenyl)ethyne and the corresponding H-substituted arylamines. Then, benzophospholes were obtained by applying the procedure of Chen and coworkers, 10 that is using Ag2O, ethyl phosphininate, and the corresponding alkynes via oxidative cyclization. Compound 2a-c were obtained with moderate yields between 31 and 40%. The compounds were fully characterized by multinuclear NMR, high-resolution mass spectrometry and elemental analyses (see the ESI). In addition, they display good solubility in classical organic solvents. Scheme 1: Synthetic access to 2a-c.