A highly efficient, three-component one-pot and L-proline catalyzed Knoevenagel condensation reaction of substituted-2-phenoxyquinoline-3-carbaldehyde, 1,3-cyclohexanedione/dimedone or ammonium acetate is described. These reactions afford unexpected products of xanthene and acridine based quinolones in ethanol with good yields. All these isolated products are characterised by spectroscopic and analytical data. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Akella Sivaramakrishna

Department of Chemistry

School of Advanced Sciences

Vellore Campus

M.M. Reddy

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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Journal	Data powered by TypesetChemistrySelect
Publisher	Data powered by TypesetWiley-Blackwell
ISSN	23656549