AlCl<sub>3</sub>/PCC-SiO<sub>2</sub>-Promoted Oxidation of Azaindoles and Indoles
作者:Rekulapally Sriram、Chebolu Naga Sesha Sai Pavan Kumar、Nerella Raghunandan、Vadla Ramesh、Manda Sarangapani、Vaidya Jayathirtha Rao
DOI:10.1080/00397911.2011.584008
日期:2012.12.1
A simple and efficient method is described for the oxidation of 7-azaindoles and indoles to 7-azaisatins and isatins using pyridinium chlorochromate-silica gel (PCC-SiO2) with the aid of Lewis acid catalyst aluminium chloride (AlCl3) in dichloroethane. Simplicity of the reaction conditions, easy workup procedure, and good yields are the key features of this protocol.