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Synthesis of New 2-Substituted 5-Hydroxypyrano[2,3-d][1,3]oxazine-4,7-diones

The reaction of carboxylic acid amides with malonyl chloride in acetonitrile or tetrahydrofuran without heating leads to the formation of previously unknown 2-substituted 5-hydroxypyrano[2,3- d ][1,3]oxazines. The structure of the obtained compounds was established by high resolution mass spectromet...

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Published in:	Russian journal of general chemistry 2020-04, Vol.90 (4), p.757-759
Main Authors:	Komissarov, V. O., Chernov, N. M., Starova, G. L., Semakova, T. L., Ksenofontova, G. V., Zakhs, V. E., Yakovlev, I. P.
Format:	Article
Language:	English
Subjects:	Acetonitrile Amides Carboxylic acids Chemical tests and reagents Chemistry Chemistry and Materials Science Chemistry/Food Science Diketones Heterocyclic compounds Mass spectrometry NMR spectroscopy Nuclear magnetic resonance spectroscopy Substitutes Tetrahydrofuran X ray analysis
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description	The reaction of carboxylic acid amides with malonyl chloride in acetonitrile or tetrahydrofuran without heating leads to the formation of previously unknown 2-substituted 5-hydroxypyrano[2,3- d ][1,3]oxazines. The structure of the obtained compounds was established by high resolution mass spectrometry, NMR spectroscopy, and X-ray analysis.
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subjects	Acetonitrile Amides Carboxylic acids Chemical tests and reagents Chemistry Chemistry and Materials Science Chemistry/Food Science Diketones Heterocyclic compounds Mass spectrometry NMR spectroscopy Nuclear magnetic resonance spectroscopy Substitutes Tetrahydrofuran X ray analysis
title	Synthesis of New 2-Substituted 5-Hydroxypyrano[2,3-d][1,3]oxazine-4,7-diones
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