2,2'-Bipyridine, 5,5'-dibromo-3,3'-dinitro- synthesis

Yield:321844-96-6 45%

Reaction Conditions:

Stage #1: 3,3’-dinitro-2,2’-bipyridinewith bromine;potassium bromide in methanol;dichloromethane;
Stage #2: with bromine at 180; for 72 h;Further stages.;

References:

Tour, James M.;Rawlett, Adam M.;Kozaki, Masatoshi;Yao, Yuxing;Jagessar, Raymond C.;Dirk, Shawn M.;Price, David W.;Reed, Mark A.;Zhou, Chong-Wu;Chen, Jia;Wang, Wenyong;Campbell, Ian [Chemistry - A European Journal,2001,vol. 7,# 23,p. 5118 - 5134]