A General Procedure for the Preparation of β-Ketophosphonates
作者:Kevin M. Maloney、John Y. L. Chung
DOI:10.1021/jo901552k
日期:2009.10.2
A mild, high-yielding procedure for the preparation of β-ketophosphonates is described. The condensation is general with respect to the ester and phosphonate, and the products are obtained in high yields within minutes at 0 °C. The reaction procedure is operationally simple and amenable to large-scale preparations.
Platinum/Copper Dual‐Catalyzed Asymmetric Vinylogous Addition Reactions for the Synthesis of Functionalized Indoles
作者:Qingdong Hu、Chang Guo
DOI:10.1002/anie.202305638
日期:2023.7.24
An efficient platinum/copper dual-catalyzed asymmetric vinylogous addition reaction has been developed. This efficient process provides a novel approach for the asymmetricsynthesis of highly valuable indoles bearing a quaternary stereocenter with excellent enantioselectivity (up to 99 % ee).