Synthesis and characterization of pyrimidine-containing hexaarylbenzene derivatives?
RSC Advances Pub Date: 2015-11-16 DOI: 10.1039/C5RA18422C
Abstract
Three pyrimidine-containing claw-shaped unusual hexaarylbenzene derivatives have been successfully synthesized by cobalt-catalyzed cyclotrimerization of corresponding 3,3′-diaryldiphenylacetylenes. Cyclotrimerization of symmetric tolan derivative 6 gave symmetric product 1, while unsymmetric tolan derivative 15 afforded two geometric isomers, C3-symmetric 2 and unsymmetric analogue 3, which have been successfully separated by preparative thin-layer chromatography in 1?:?2 ratios. The coordination of 1 with Ag+, Cu2+ and Zn2+ was studied by UV-vis, fluorescence spectra and TEM.
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Journal Name：RSC Advances
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CAS no.: 89640-58-4
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