Pd-catalyzed amination of isomeric dibromobiphenyls: possibilities of one-step synthesis of macrocycles
作者:Alexei D. Averin、Alexei N. Uglov、Alexei K. Buryak、Irina P. Beletskaya
DOI:10.1016/j.mencom.2010.01.001
日期:2010.1
The Pd-catalyzedamination of isomeric dibromobiphenyls using linear oxadiamines, tri-, tetra- and pentaamines was carried out. 4,4’-Dibromobiphenyl provided a macrocyclecomprising one biphenyl and one oxadiamine unit in tiny yield only with the longest diamine; on contrary, 3,3’-dibromobiphenyl gave target macrocycles in good yields, while 2,2’-dibromobiphenyl afforded only acyclic products.