An efficient method for the N-arylation of phenylurea via copper catalyzed amidation

来源 :Chinese Chemical Letters | 被引量 : 0次 | 上传用户:zengguiyeah3
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The coupling reaction of phenylurea with different functionalized aryl halides in the presence of air stable CuI,N,N-dimethylethylenediamine as a ligand,and K_3PO_4 as a base gives symmetrical and unsymmetrical diarylureas in relatively high yields.This method is milder than the palladium catalyzed arylation and avoids the use of toxic phosphine ligands. The coupling reaction of phenylurea with different functionalized aryl halides in the presence of air stable CuI, N, N-dimethylethylenediamine as a ligand, and K_3PO_4 as a base gives symmetrical and unsymmetrical diarylureas in relatively high yields.This method is milder than the palladium catalyzed arylation and avoids the use of toxic phosphine ligands.
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