Synthesis of pyrrolo-heterocycles via Pd-loaded zeolite catalyzed annulation of o - haloaromatic amine with terminal alkynes
作者:Eul Kgun Yum、Ki Bum Hong
DOI:10.1016/j.tet.2017.10.002
日期:2017.11
A Pd-loaded zeolite-catalyzed heteroannulation of various 2-iodopyridines and 2-iodoquinolines with terminal allcyne is demonstrated. This approach provides a rapid and convergent synthesis toward a diverse range of pyrrolo-pyridines (azaindoles) and pyrrolo-quinoline ring systems. The Pd-zeolite catalyst can be reused within the same reaction without reactivation of the Pd-zeolite catalyst. Furthermore, Pd-zeolite catalysis is an interesting alternative to homogeneous catalysis for the synthesis of heterocycles. (C) 2017 Elsevier Ltd. All rights reserved.
Synthesis of Aromatic Ring Fused Pyrrole Derivatives by Palladium-catalyzed Annulation of o-Iodoarylamines with Allyl Acetate