Events The 3rd International Electronic Conference on Synthetic Organic Chemistry

Event submissions

Published

This submission belongs to the session a. General Organic Synthesis of the event The 3rd International Electronic Conference on Synthetic Organic Chemistry

Published date

01 Nov, 1999

Citation

Katarina Kralova, Jarmila Chovancova, Dusan Loos, Margita Lacova, Phthalides and Chromones from 4-Coumarinacetic acids, Study of Beneficial Effects of Microwave Irradiation on Synthesis., in Proceedings of The 3rd International Electronic Conference on Synthetic Organic Chemistry, 1 November–30 November 1999, MDPI: Basel, Switzerland, doi: 10.3390/ecsoc-3-01750

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Phthalides and Chromones from 4-Coumarinacetic acids, Study of Beneficial Effects of Microwave Irradiation on Synthesis.

Margita Lacova ¹

Dusan Loos ²

Jarmila Chovancova ¹

Katarina Kralova ²

1. Department of Organic Chemistry, Comenius University, Mlynska dolina CH-2, SK- 842 15 Bratislava, Slovakia

2. Institute of Chemistry, Faculty of Natural Sciences, Comenius University, Mlynska dolina CH-2, SK-842 15 Bratislava

Abstract

3-(4-Coumarinylmethylene)phthalides and 2-, or 3-(4-coumarinylethenyl)-4-chromones were prepared by condensation reaction. Beneficial effect of microwave irradiation on length of reaction time was investigated. Some subsequent reactions of these derivatives with nucleophiles are described. Nucleophile attack is studied by AM1 theoretical method.

Keywords

3-formylchromones

dicarboxylic acid anhydrides

condensation reaction

pyridine derivatives

Synthesis and Reactivity of 5-Functionalized 4-Hydroxyhexahydropyrimidine-2- thiones/ones.

A New Route for the Synthesis of Cyclic Thioureas and Related Compounds