The formal inverse electron demand Diels-Alder reactions of amines with 1,3,5-triazine and 2,4,6-tris(trifluoromethyl)-1,3,5-triazine provided functionalized purines and bi-purines. Suzuki-Miyaura cross coupling reactions of different substituted mono-fluorobenzenes with different arylboronic acids afforded fluoro-substituted terphenyls with excellent site-selectivity. Sonogashira and Suzuki-Miyaura coupling reactions of 1,2-difluoro-, 1,3-difluoro-, and 1,4-difluoro-tetraiodobenzenes and of fluoro-pentaiodobenzene afforded alkynylated and arylated benzene derivatives. The fluorescence properties of benzene derivatives were studied.