Liu and Zhang have reported efficient C-N cross-coupling reactions of arylamines with bromoarenes, co-catalyzed by
iron(III) acetylacetonate [Fe(acac)3] and Cu(OAc)
2•H
2O in the presence of K
2CO
3 in DMF at 135 ºC for 20 h. This reaction condition is also suitable for the cross-coupling of benzylamine or heteroarylamines with aryl bromides.