Direct Allylic C–H Bond Activation To Synthesize [Pd(η<sup>3</sup>-cin)(IPr)Cl] Complex: Application in the Allylation of Oxindoles
作者:Rong-Bin Hu、Chun-Hai Wang、Wei Ren、Zhong Liu、Shang-Dong Yang
DOI:10.1021/acscatal.7b02965
日期:2017.11.3
an efficient ligand in promoting allylic C–Hbond functionlizations. Notably, the catalytic [Pd(η3-cin)(IPr)Cl] complex (where cin = cinnamyl) was formed in situ from direct C–Hactivation of allylic precursors, and was obtained by way of one-pot strategy with available IPr·HCl and allylbenzene. The catalyst exhibits high regioselectivity and stereoselectivity of the allylic C–H alkylation with oxindoles
Mo-Catalyzed Regio-, Diastereo-, and Enantioselective Allylic Alkylation of 3-Aryloxindoles
作者:Barry M. Trost、Yong Zhang
DOI:10.1021/ja0755717
日期:2007.11.28
A highly regio-, diastereo-, and enantioselective allylic alkylation reaction mediated by a chiral molybdenum catalyst has been developed as a novel entry into synthetically versatile 3-alkyl-3-aryloxindoles. Extremelybulky nucleophiles were employed to form a quaternary center and an adjacent tertiary center asymmetrically concurrently. The regio- and diastereoselectivity of the reaction is dependent