Key points are not available for this paper at this time.
reaction: see text Ullmann-type aryl amination of aryl iodides and aryl bromides in DMSO at 40-90 degrees C gave the corresponding N-arylamines or N,N-diarylamines in good to excellent yields by using either N-methylglycine or L-proline as the ligand.
Ma et al. (Sat,) studied this question.