Copper-Catalyzed para-Selective C–H Amination of Electron-Rich Arenes
摘要:
A one-pot two-step method for para-selective C-H amination of carbocyclic arenes comprises the in situ formation of unsymmetrical diaryl-lambda(3)-iodanes followed by their Cu(I)-catalyzed reaction with a range of N-unprotected amines.
Extension of the Chan–Lam N-alkylation of anilines by using alkylboranes as organoboron partners is reported. Alkylboranes, synthesized by hydroboration of styrenes, are effectively coupled with anilines, which comprises a facile method for the synthesis of highly functionalized phenethylaniline derivatives. This is the first time that alkylboranes are used in C–N copper-promoted cross-coupling reactions