Miller, Timothy M.; Neenan, Thomas X.; Zayas, Roberto; Bair, Harvey E. published an article on January 29 ,1992. The article was titled 《Synthesis and characterization of a series of monodisperse, 1,3,5-phenylene-based hydrocarbon dendrimers including C276H186 and their fluorinated analogs》, and you may find the article in Journal of the American Chemical Society.Recommanded Product: 29102-67-8 The information in the text is summarized as follows:
The convergent synthesis of a series of monodisperse aromatic dendrimers having mol. diameters 15-31 Å is described. These materials consist of 4,10, 22, or 46 benzene rings linked sym. by σ-bonds. Increasingly large dendrimer arms are prepared stepwise via Pd-catalyzed coupling of arylboronic acids to 3,5-dibromo-1-(trimethylsilyl)benzene. The aryltrimethylsilane is subsequently converted to a new arylboronic acid by reaction with BBr3 followed by hydrolysis. Coupling of arylboronic acid dendrimer arms to 1,3,5-tribromobenzene or 1,3,5-tris(3,5-dibromophenyl)benzene is the final step in the synthesis. A series of dendrimers consisting of 4, 10, and 22 Ph rings sym. arranged in which the outer Ph rings are fluorinated is prepared by a similar sequence of reactions. The largest hydrocarbon dendrimer is soluble to the extent of 190 g/L in PhMe and is stable to 500°. In the experiment, the researchers used 3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl(cas: 29102-67-8Recommanded Product: 29102-67-8)
3,3”,5,5”-Tetrabromo-5′-(3,5-dibromophenyl)-1,1′:3′,1”-terphenyl(cas: 29102-67-8) belongs to organobromine compounds.Most of the natural organobromine compounds are produced by marine organisms , and several brominated metabolites with antibacterial , antitumor , antiviral , and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. In contrast, terrestrial plants account only for a few bromine-containing compounds.Recommanded Product: 29102-67-8
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary