Synthesis of pyrano[2,3-c]carbazoles, pyrano[3,2-b]carbazoles

and furo[3,2-b]carbazole derivatives via iodocyclization

KRISHNA CHAITANYA TALLURI and RAJAGOPAL NAGARAJAN*

School of Chemistry, University of Hyderabad, Hyderabad 500046, India

e-mail: rnsc@uohyd.ernet.in

Abstract. A simple and facile synthesis of pyranocarbazole derivatives starting from easily accessible

O-propargylated carbazoles using iodocyclization in good yields is reported.

Graphical Abstract. A simple and facile synthesis of pyranocarbazole derivatives starting from

easily accessible O-propargylated carbazoles using iodocyclization is reported.

Keywords. Carbazole; pyranocarbazole; furocarbazole; iodocyclization; O-propargylcarbazole.