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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Bibliographic Details
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
Summary: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.
ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363220040325