Separation of the mono substituted and bis substituted bromomethyl bipyridines?

I synthesized 4,4'-bis(bromomethyl)-2,2'-bipyridine by brominating 4,4'-bis(methyl)-2,2'-bipyridine. I confirmed the presence of the bis substituted product by  NMR, but there also exist the mono...

06 June 2016 3,277 0 View