A novel and facile method for direct acetylenic bond formation from the CC double bond by treatment with KOBut in dimethylformamide has been found both in a 9,10-bis(4′-substituted styryl)anthracene series and in a 4-substituted 4′-nitro-stilbene series; its scope and limitations have been examined.
Fluorescent nanoparticles based on 9,10-distyrylanthracene (DSA) derivatives (4,4′-((1E,1′E)-anthracene-9,10-diylbis(ethene-2,1-diyl))bis(N,N-dimethylaniline) (NDSA) and 4,4′-((1E,1′E)-anthracene-9,10-diylbis(ethene-2,1-diyl))dibenzonitrile (CNDSA)) were prepared using an ultrasound aided nanoprecipitation method.