The Journal of organic chemistry2017Vol. 82pp. 10263-10270
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li2017cobaltcoppercocatalyzedthe
Abstract
A cobalt/copper-cocatalyzed facile synthesis of imidazo[1,2-a:3,4-a']dipyridiniums from 2H-[1,2'-bipyridin]-2-ones and 2-bromoacetophenones is presented. This strategy provides an alternative to the imidazo[1,2-a:3,4-a']dipyridinium synthesis by employing readily available substrates and a simple procedure, which would render this method potentially useful in organic synthesis.