EventsThe 2nd International Electronic Conference on Synthetic Organic Chemistry
Event submissions
Published
with-doi10.3390/ecsoc-2-01682
This submission belongs to the session a. General Organic Synthesis of the event The 2nd International Electronic Conference on Synthetic Organic Chemistry
Published date
01 Nov, 1998
Citation
Henrieta Stankovicova, Margita Lacova, Anton Gaplovsky, Jarmila Chovancova, Nada Proyanova, Synthetic and Kinetic Study of the Reaction of 3-Formylchromones with Aromatic Amino Acids, in Proceedings of The 2nd International Electronic Conference on Synthetic Organic Chemistry, 1 November–30 November 1998, MDPI: Basel, Switzerland, doi: 10.3390/ecsoc-2-01682
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Synthetic and Kinetic Study of the Reaction of 3-Formylchromones with Aromatic Amino Acids

Henrieta Stankovicova 1
Margita Lacova 2
Anton Gaplovsky 1
Jarmila Chovancova 2
Nada Proyanova 3
1. Institute of Chemistry and Faculty of Natural Sciences, Comenius University, Mlynská dolina CH-2, SK-842 15 Bratislava, Slovakia
2. Department of Organic Chemistry and Faculty of Natural Sciences, Comenius University, Mlynská dolina CH-2, SK-842 15 Bratislava, Slovakia
3. Central Laboratories, Faculty of Chemical Technology, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovakia
Abstract
Conditions of synthesis of 2-alkoxy- or 2-hydroxy-3-(arylaminomethylene)-4-chromanones and 3-(aryliminomethyl)-4-chromenones in the reaction of 3-formylchromones with arylaminoacids have been investigated. The alkylation of 2-alkoxy-3-(arylaminomethylene)-4- chromanones by alkylhalides was carried out. Rate coefficients for the acid-catalyzed formation of chromanone-chromenone system were measured. Dependence of reaction rate upon the structure of starting compounds, the type of used reaction medium and the concentration of catalyst, respectively, have been studied.
Keywords
4-oxochromene-3-carboxaldehydes
anils
enamines
reaction kinetics
rate constants Introduction
Reaction of 4,5-Dihydroxyimidazolidine-2-ones with Arylsulfinic Acids
A Simple Synthesis of the Aryloxy- or Arylthio- derivatives of 2-Benzothiazolyl Stilbenes