Solvent-Free Solid Acid-Catalyzed Electrophilic Annelations: A New Green Approach for the Synthesis of Substituted Five-Membered N-Heterocycles
作者:Mohammed Abid、Andrew Spaeth、Béla Török
DOI:10.1002/adsc.200606200
日期:2006.10
An effective microwave-induced, solid acid-catalyzed, environmentally benign synthesis of substituted pyrroles, indoles and carbazoles under solvent-free conditions is described. The new synthetic methodology is based on the use of a considerably strong solid acid, K-10 montmorillonite. Both the cyclialkylation of amines and annelation of pyrroles and indoles have been completed within minutes and
Several 9H-carbazole derivatives are used for various pharmacological applications. Many of these compounds demonstrated cytotoxic and anticancer activities. In this work, we have investigated the cytotoxic activity of some substituted carbazoles against cancer cell lines (MCF-7, and ISK). The derivative 2a showed the highest inhibitory activity against both cell lines.