Nanocrystalline magnesium oxide-stabilized palladium(0): an efficient and reusable catalyst for synthesis of N-(2-pyridyl)indoles
作者:Police Vishnuvardhan Reddy、Manne Annapurna、Pottabathula Srinivas、Pravin R. Likhar、Mannepalli Lakshmi Kantam
DOI:10.1039/c5nj00074b
日期:——
A selective and efficient catalytic process has been developed for the oxidative coupling between N-aryl-2-aminopyridines and alkynes using a nanocrystallinemagnesium oxide (NAP–MgO)-supported palladium nanoparticle [NAP–Mg–Pd(0)] catalyst and CuCl2 as an oxidant. The process involves the ortho C–H activation of N-aryl-2-aminopyridines to give N-pyridyl indoles in excellent yields and the true heterogeneity
Rh(III)-Catalyzed Oxidative Coupling of <i>N</i>-Aryl-2-aminopyridine with Alkynes and Alkenes
作者:Jinlei Chen、Guoyong Song、Cheng-Ling Pan、Xingwei Li
DOI:10.1021/ol1022596
日期:2010.12.3
[RhCp*Cl-2](2) (1-2 mol %) can catalyze the oxidative coupling of N-aryl-2-aminopyridines with alkynes and arylates to give N-(2-pyridyl)indoles and N-(2-pyridyl)quinolones, respectively, using Cu(OAc)(2) as an oxidant. Coupling with styrenes gave mono- and/or disubstituted olefination products.