Synthesis of pyrano[2,3-c]carbazoles, pyrano[3,2-b]carbazoles and furo[3,2-b]carbazole derivatives via iodocyclization

Abstract

A simple and facile synthesis of pyranocarbazole derivatives starting from easily accessible O-propargylated carbazoles using iodocyclization in good yields is reported. [Figure not available: see fulltext.] © 2011 Indian Academy of Sciences.