Microwave Assisted Synthesis of ethyl-quinolon-4-one-3-carboxylates and Hydrolysis to quinolon-4-one-3-carboxylic Acids

Author(s): Ivana Malvacio, D. Mariano. A. Vera, Elizabeth L. Moyano.

Journal Name:Current Microwave Chemistry

Volume 1 , Issue 1 , 2014

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Abstract:

A fast and efficient microwave assisted synthesis of several ethyl-quinolon-4-one-3-carboxylates and quinolon- 4-one-3-carboxylic acids has been developed. The 3-carboethoxy quinolones are easily obtained in a one-pot procedure through the cyclization of aminomethylenemalonate intermediates obtained by reaction of different p-substituted anilines and diethyl-ethoxymethylenmalonate. These quinolones are then irradiated under base hydrolysis conditions to get the carboxylic acids through a very fast and clean approach.

Keywords: Carboxylic acids, catalysis, cyclization, hydrolysis, malonates, microwave, open-vessel, quinolones, sealed-vessel, thermolysis.

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Article Details

VOLUME: 1
ISSUE: 1
Year: 2014
Page: [52 - 58]
Pages: 7
DOI: 10.2174/2213335601666140402002204