Author(s)

Swathi Bandaru, Ravi K. Majji, Satyanarayana Bassa, Pandu N. Chilla, Ramesh Yellapragada, Sruthi Vasamsetty, Rajendra K. Jeldi, Raghu B. Korupolu, Paul D. Sanasi^*

Department of Engineering Chemistry, A. U. College of Engineering (A), Andhra University, Visakhapatnam, India.

A microwave irradiated magnetically separable nano cobalt ferrite catalyzed green method for the synthesis of 4-phenyl-4H-pyrano[3,2-h]quinolin-2-amine and 2-amino-4-phenyl-4H-pyrano[3,2-h] quinoline-3-carbonitrile derivatives through cyclization of aromatic aldehyde, acetonitrile/malononitrile and 8-hydoxyquinoline is developed and presented in this paper. The cubic magnetic cobalt ferrite nano particles were synthesized by sol-gel citrate precursor method and characterized by FT-IR, XRD, SEM and TEM techniques and the structures of the synthesized pyranoquinoline derivatives were assigned by IR, MASS and ¹H NMR techniques. The reaction is carried out in a domestic microwave oven with a heat-resistant microwave safe glass container with a lid.

Synthesis of 4H-Pyrano[3, 2-h]quinoline Derivatives, Microwave Irradiation, Nano Cobalt Ferrite Catalyst

Bandaru, S. , Majji, R. , Bassa, S. , Chilla, P. , Yellapragada, R. , Vasamsetty, S. , Jeldi, R. , Korupolu, R. and Sanasi, P. (2016) Magnetic Nano Cobalt Ferrite Catalyzed Synthesis of 4H-Pyrano[3,2-h]quinoline Derivatives under Microwave Irradiation. Green and Sustainable Chemistry, 6, 101-109. doi: 10.4236/gsc.2016.62009.