On August 31, 2011, Chisholm, Danielle M.; McDonald, Robert; McIndoe, J. Scott published an article.Recommanded Product: [2,2′-Bipyridine]-3,3′-diamine The title of the article was 3,3′-N,N’-Bis(amino)-2,2′-bipyridine – An unusually methylation-resistant amine. And the article contained the following:
Methylation of aromatic amino groups is usually straightforward, but the formation of two intramol. hydrogen bonds in 3,3′-N,N’-bis(amino)-2,2′-bipyridine and (or) the potential for ring methylation prevents the clean tetramethylation of this mol. Numerous attempts to make 3,3′-N,N’-bis(dimethylamino)-2,2′-bipyridine produced only complex mixtures of variously methylated products, and the only isolated mol. was 3,3′-N,N’-bis(methylamino)-2,2′-bipyridine, for which an X-ray crystal structure was obtained. The experimental process involved the reaction of [2,2′-Bipyridine]-3,3′-diamine(cas: 75449-26-2).Recommanded Product: [2,2′-Bipyridine]-3,3′-diamine
The Article related to bisaminobipyridine methylation resistant amine, Physical Organic Chemistry: Addition, Elimination, and Substitution Reactions and other aspects.Recommanded Product: [2,2′-Bipyridine]-3,3′-diamine