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We report the chemoselective amination of bromoiodobenzenes with diarylamines by palladium/Xantphos or a ligand-free copper catalyst. The reactions by these two types of catalysts proceeded with a high chemoselectivity and afforded monobrominated triarylamines in good yields. These products are useful intermediates for the synthesis of unsymmetrical bistriarylamines.
The palladium-catalyzed regioselective allylic amination of the α-trifluoromethyl group-substituted allyl acetate has been accomplished using Pd(OAc) 2 /DPPE and [Pd(π-allyl)(cod)]BF 4 /DPPF as catalysts. The selective formation of the γ-product was attained in the presence of Pd(OAc) 2 /DPPE, while the α-product was obtained using [Pd(π-allyl)(cod)]BF 4 /DPPF. We also...
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