Investigation of the Mechanism of C(sp<sup>3</sup>)−H Bond Cleavage in Pd(0)-Catalyzed Intramolecular Alkane Arylation Adjacent to Amides and Sulfonamides
作者:Sophie Rousseaux、Serge I. Gorelsky、Benjamin K. W. Chung、Keith Fagnou
DOI:10.1021/ja103081n
日期:2010.8.11
reactivity of C(sp(3))-H bonds adjacent to a nitrogen atom can be tuned to allow intramolecular alkane arylation under Pd(0) catalysis. Diminishing the Lewis basicity of the nitrogen lone pair is crucial for this catalytic activity. A range of N-methylamides and sulfonamides react exclusively at primary C(sp(3))-H bonds to afford the products of alkane arylation in good yields. The isolation of a Pd(II) reaction