derivatives were prepared by copper-catalyzedcross-coupling of hydroxamates with aryliodides. The reaction conditions are compatible with standard hydroxy-protecting groups on the hydroxylamine moiety and are applicable to a broad range of coupling partners. N-Aryl-O-alkylhydroxamic acid derivatives were prepared by copper-catalyzedcross-coupling of hydroxamates with aryliodides. The reaction conditions
Synthesis of β-, γ-, and δ-Lactams via Pd(II)-Catalyzed C−H Activation Reactions
作者:Masayuki Wasa、Jin-Quan Yu
DOI:10.1021/ja807129e
日期:2008.10.29
Pd(II)-catalyzed intramolecular amination of Sp(2) and Sp(3) C-H bonds are developed using a combination of CuCl2 and AgOAc as the oxidant. The reaction protocol tolerates the presence of a double bond in the substrates. This catalytic reaction provides practical access to a wide range of beta-, gamma-, and delta-lactams.