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Ma, Y., Qian., C.T., Xie, M.H. and Sun, J. (1999) Lanthanide Chloride Catalysed Imino Diels-Alder Reaction. One-Pot Synthesis of Pyrano[3,2-c] and Furo[3,2-c] Quinolines. The Journal of Organic Chemistry, 64, 6462-6467.
http://dx.doi.org/10.1021/jo982220p

has been cited by the following article:

• TITLE: Magnetic Nano Cobalt Ferrite Catalyzed Synthesis of 4H-Pyrano[3,2-h]quinoline Derivatives under Microwave Irradiation

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

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

  JOURNAL NAME: Green and Sustainable Chemistry, Vol.6 No.2, May 11, 2016

  ABSTRACT: 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.