A straightforward synthesis of 5-bromo and 5,5'-dibromo-2,2'-bipyridines

Article abstract of DOI:10.1016/0040-4039(95)01306-3

We herein report on the selective synthesis of 5-bromo-2,2'-bipyridine 2 and 5,5'-dibromo-2,2'-bipyridine 3 by direct bromination of 2,2'-bipyridine hydrobromide salt 1, as well as by radical decarboxylative bromination of the corresponding acid chlorides.